- Jun 07, 23:20 (Callichthyidae) [changes]
Original_desc changed to [n] from [y].
Genus_feeding changed to [Will readily accepted all prepared foods that reach the bottom of the aquarium such as tablets, granules and larger flakes. Live (or frozen) foods such as bloodworm, white worm, grindal worm (Enchytraeus), Daphnia and Tubifex are readily accepted and good for conditioning groups of fishes for spawning.] from [Will readily accepted all prepared foods that reach the bottom of the aquarium such as tablets, granules and larger flakes. Live (or frozen) foods such as bloodworm, white worm, grindal worm (Enchytraeus), Daphnia and Tubifex are readily accepted and good for conditioning groups of fishes for spawning.]. - Jun 05, 14:48 Hypostomus dardanelos (Loricariidae) New Species
- Jun 05, 03:39 Glyptothorax palakkadiensis (Sisoridae) [changes]
Desc_by changed to [Singh & Kosygin] from [].
Original_desc changed to [y] from [].
Type_locality changed to [Karappara River, Chalakudy River drainage, Palakkad District, Kerala, India, 10.4083°N, 76.7214°E.] from [].
Type_loc_comp_lat changed to [10.4083] from [0].
Type_loc_comp_long changed to [76.7214] from [0].
Pronunciation changed to [paa luck kaad ensis.] from [].
Etymology changed to [The species is named after the Palakkad District of Kerala, India, where the type specimens were collected from.] from [].
Literature changed to [Journal of Natural History v. 59 (nos. 17-20), pp 1384, Figs. 1-3.] from [].
Genus_identification changed to [Sisorid catfishes of the genus Glyptothorax Blyth are benthic inhabitants of torrential waters of rivers and streams in montane and submontane parts of tropical Asia. The members of the genus are adapted to attach themselves to rocks and boulders against strong currents by means of a thoracic adhesive apparatus comprising grooves and folded pleats of skin parallel or oblique to the longitudinal axis of the body. The genus has a wide distribution, ranging from Turkey and Syria in the west, to India and China in the east, and extending further southeastward to Indonesia. With 84 nominal species, Glyptothorax are the most speciose genus of catfishes in Asia (Eschmeyer et al., 1998, Ng, 2005); 67 species were treated as valid by Thomson & Page (2006).] from [Sisorid catfishes of the genus Glyptothorax Blyth are benthic inhabitants of torrential waters of rivers and streams in montane and submontane parts of tropical Asia. The members of the genus are adapted to attach themselves to rocks and boulders against strong currents by means of a thoracic adhesive apparatus comprising grooves and folded pleats of skin parallel or oblique to the longitudinal axis of the body. The genus has a wide distribution, ranging from Turkey and Syria in the west, to India and China in the east, and extending further southeastward to Indonesia. With 84 nominal species, Glyptothorax are the most speciose genus of catfishes in Asia (Eschmeyer et al., 1998, Ng, 2005); 67 species were treated as valid by Thomson & Page (2006).]. - Jun 04, 19:16 (Ailiidae)
- Jun 04, 19:16 (Ailiidae) [changes]
Sl changed to [290] from [250]. - Jun 02, 13:01 (Heptapteridae) [changes]
Literature changed to [Notas preliminares; editadas pela redaccão da Revista do Museu Paulista v. 1 (fasc. 1), pp 16 [17].] from [Revista do Museu Paulista (N. S.) v. 1 (fasc. 1), pp 16 [17].].
Distribution changed to [South America: streams in the São Sebastião Island, Brazil.] from [South America: streams in the São Sebastião Island, Brazil.]. - Jun 02, 07:59 Trichomycterus hatoensis (Trichomycteridae) [changes]
Desc_by changed to [Ardila Rodríguez] from [].
Year changed to [2025] from [0].
Original_desc changed to [y] from [].
Type_locality changed to [Quebrada La Vega, Cueca baja del río Suárez, municipio de Hato, Departamento de Santander, Colombia.] from [].
Literature changed to [Barranquilla, Departamento del Atlántico No. 101, pp 4, Figs. 1-6.] from []. - Jun 01, 13:40 (Ariidae) [changes]
Distribution changed to [South America: Caribbean and Atlantic draining rivers and estuaries from Colombia to Brazil.] from [Caribbean and Atlantic draining rivers and estuaries from Colombia to Brazil: Brazil, Colombia, French Guiana, Guyana, Suriname and Venezuela.]. - Jun 01, 13:40 Cathorops agassizii (Ariidae) [changes]
Sl changed to [320] from [0].
Distribution changed to [South America: Guyana and north and northeast of Brazil.] from []. - Jun 01, 13:39 Sciades passany (Ariidae)
- Jun 01, 13:37 (Ariidae) [changes]
Desc_by changed to [Valenciennes] from [].
Year changed to [1840] from [0].
Original_desc changed to [n] from [].
Type_locality changed to [Cayenne, French Guiana.] from [].
Literature changed to [Histoire naturelle des poissons v. 14, pp 459.] from []. - Jun 01, 13:36 (Loricariidae) [changes]
Sl changed to [500] from [300]. - Jun 01, 13:35 (Pimelodidae) [changes]
Sl changed to [1500] from [1050].
Distribution changed to [South America: Amazon and Orinoco River basins and major rivers of the Guianas and northeastern Brazil.] from [Widespread in the Amazon basin, usually downstream of first rapids. A similar if not the same species occurs in the Orinoco system. The fish on the left was offered for sale under the junior synonym of Piramutana piramuta, although it appears to be a different species possibly even genus from the Orinoco fish.]. - Jun 01, 13:35 (Pimelodidae) [changes]
Type_locality changed to [Río de la Plata; Río Paraná, Argentina.] from [Río de la Plata; Río Paraná, Argentina.].
Genus_tankmates changed to [Larger active fish such as tetras, most barbs and gouramis. They can also be kept in groups but do not suffer from being kept singly. Angelfish and other ''graceful'' fish are sometimes bothered by this species' barbels particularly during "lights-out".] from [Larger active fish such as tetras, most barbs and gouramis. They can also be kept in groups but do not suffer from being kept singly. Angelfish and other ''graceful'' fish are sometimes bothered by this species' barbels particularly during "lights-out".]. - Jun 01, 13:33 (Callichthyidae) [changes]
Sl changed to [124] from [155].
Distribution changed to [South America: Amazon, Orinoco and upper Paraguay River basins, as well as coastal rivers of the Guianas and northern Brazil.] from [Trinidad, Guyana, Martinique, Venezuela, Brazil, Peru & Paraguay]. - Jun 01, 13:33 (Callichthyidae) [changes]
Brazil_negative_list changed to [n] from []. - Jun 01, 13:32 (Aspredinidae) [changes]
Brazil_negative_list changed to [n] from [].
Iucn_category changed to [NE] from []. - Jun 01, 13:31 (Aspredinidae) [changes]
Genus_etymology changed to [Aspredinichthys: From the Latin aspredo, meaning roughness and the Greek ichthys, meaning fish; in reference to the tuberculate skin.] from [Aspredinichthys: From the Latin aspredo, meaning roughness and the Greek ichthys, meaning fish; in reference to the tuberculate skin.].
Distribution changed to [South America: lower portions of coastal rivers and in coastal waters in Venezuela to Brazil.] from [South America: Venezuela to northern Brazil; lower portions of coastal rivers and in coastal waters.]. - Jun 01, 13:31 (Auchenipteridae) [changes]
Distribution changed to [South America: Lower reaches of rivers and into estuaries from Venezuela to Brazil, at least to Bahia, including southern Trinidad.] from [South America. Lower reaches of rivers and into estuaries from Venezuela to Brazil.]. - Jun 01, 13:29 (Auchenipteridae) [changes]
Sl changed to [220] from [237].
Distribution changed to [South America: Widespread in northern South America, including Peru and Argentina.] from [Widely distributed in the Amazon and is found from the Northern tip of South America as far South as tropical Peru and Brazil.]. - May 25, 18:36 (Loricariidae) New Species
- May 25, 09:20 (Callichthyidae) [changes]
Type_locality changed to [Rio Tapajós, 80 kilometers east of Jacareacanga, 6°09'S, 58°15'W, Brazil.] from [Rio Tapajós, 80 km east of Jacareacanga, 6°09'S, 58°15'W, Brazil.]. - May 24, 23:33 (Callichthyidae) [changes]
Sl changed to [45] from [65].
Male_sl changed to [0] from [60].
Distribution changed to [South America: Upper Negro River basin.] from [South America: Brazil: upper Rio Negro]. - May 24, 23:33 (Callichthyidae) [changes]
Sl changed to [50] from [65]. - May 24, 23:27 (Callichthyidae) [changes]
Sl changed to [71] from [90].
Male_sl changed to [0] from [85].
Distribution changed to [South America: Purus River basin in middle Amazon.] from [South America: East Brazil: Rio Purus]. - May 22, 09:14 Cambeva horacioi (Trichomycteridae) [changes]
Desc_by changed to [dos Reis, Frota, Fabrin & da Graça] from [Reis, Frota, Fabrin & Graça].
Type_locality changed to [Rio Barra Bonita, Rio Ivaí basin, upper Rio Paraná system, municipality of Prudentópolis, Paraná State, Brazil, 25°04'08"S, 51°06'48"W.] from [Rio Barra Bonita, Rio Ivaí basin, upper Rio Paraná system, municipality of Prudentópolis, Paraná State, Brazil, 25°04'08"S, 51°06'48"W.]. - May 19, 11:42 (Loricariidae) [changes]
Desc_by changed to [Sousa, Sousa, Oliveira, Sabaj Pérez, Zuanon & Rapp Py-Daniel] from [].
Year changed to [2025] from [1990].
Original_desc changed to [y] from [-].
Type_locality changed to [Vitória do Xingu, Itaubinha, pedral, Pará State, Brazil, 02°53'21"S, 51°56'26"W.] from [Lower Xingú or Tocantins, Pará, Brazil].
Type_loc_lat changed to [-2.8891666666667] from [0].
Type_loc_long changed to [-51.940555555556] from [0].
Genus_etymology changed to [A contraction of the Greek hypo (meaning less than) and ancistrus, an allusion to the reduced number of teeth (particularly in the lower jaw) found in this genus.] from [A contraction of the Greek hypo (meaning less than) and ancistrus, an allusion to the reduced number of teeth (particularly in the lower jaw) found in this genus.].
Literature changed to [Neotropical Ichthyology v. 23 (no. 1): e240080, pp 11, Figs. 5-7.] from [].
Identification changed to [A distinctive L number that is most often confused with a few other similarly patterned species, such as L333, L318, L399, L400 and L401. Youngsters however are quite different from the adults. Both fishes have a light base with dark lines. L066 has a paler base colouration than L333 where L333 has a yellow/light brown base colouration, and more slender. Both L066 and L333 are from Rio Xingu
L066 has even/straight lines in the fins, other similar fish do not L318 and L401 comes from different rivers other than RIo Xingu, so if capture location is available, then the difference is very obvious. Both of these fishes have a dark base colouration with lighter lines. L318 also has more wide areas of dark colour and the lighter lines are often broken. L401 has narrower dark areas, but still many broken lines.] from [A distinctive L number that is most often confused with a few other similarly patterned species, such as L333, L318, L399, L400 and L401. Youngsters however are quite different from the adults. Both fishes have a light base with dark lines. L066 has a paler base colouration than L333 where L333 has a yellow/light brown base colouration, and more slender. Both L066 and L333 are from Rio Xingu
L066 has even/straight lines in the fins, other similar fish do not L318 and L401 comes from different rivers other than RIo Xingu, so if capture location is available, then the difference is very obvious. Both of these fishes have a dark base colouration with lighter lines. L318 also has more wide areas of dark colour and the lighter lines are often broken. L401 has narrower dark areas, but still many broken lines. ].
Sexing changed to [Adult males develope teeth-like odontodes around the head and the pectoral fins. Viewed from above the female looks much more massive than the male.] from [Adult males develope teeth-like odontodes around the head and the pectoral fins. Viewed from above the female looks much more massive than the male. ].
Genus_feeding changed to [Unlike the popular opinion of many other loricariids, Hypancistrus are more carnivores than algae eaters. This is backed up by a small and lightly toothed mouth that indicates they are poor algae scrapers. Provide small and frequent supply of mainly meaty foods such as dry discus food, bloodworm and even brineshrimp with the infrequent offering of flake or algae tablets.] from [Unlike the popular opinion of many other loricariids, Hypancistrus are more carnivores than algae eaters. This is backed up by a small and lightly toothed mouth that indicates they are poor algae scrapers. Provide small and frequent supply of mainly meaty foods such as dry discus food, bloodworm and even brineshrimp with the infrequent offering of flake or algae tablets.].
Feeding changed to [Carnivore - feed with bloodworms, mussel, sinking prepared food (such as Tetra bits), carnivore wafers, shrimp pellets and so on.] from [Carnivore - feed with bloodworms, mussel, sinking prepared food (such as Tetra bits), carnivore wafers, shrimp pellets and so on. ].
Furniture changed to [A hiding space for each fish is required.] from [A hiding space for each fish is required. ].
Genus_tankmates changed to [Small tetras and other similar small fish. Also Corydoras. Care has to be taken to ensure that they get enough food, as they can be a bit shy and slow to grab food when available.] from [Small tetras and other similar small fish. Also Corydoras. Care has to be taken to ensure that they get enough food, as they can be a bit shy and slow to grab food when available.].
Genus_breeding changed to [All Hypancistrus are closed cave spawners. Males trap females in the cave, eggs are laid and fertilised after which the male guards them until the fry are free swimming.] from [All Hypancistrus are closed cave spawners. Males trap females in the cave, eggs are laid and fertilised after which the male guards them until the fry are free swimming.]. - May 19, 11:42 (Bagridae) [changes]
Brazil_negative_list changed to [n] from [].
Literature changed to [Natuurkundig Tijdschrift voor Nederlandsch Indië v. 3 (no. 4), pp 588.] from [Natuurkundig Tijdschrift voor Nederlandsch Indië v. 3 (no. 4), pp 588.].
Genus_identification changed to [Members of the highly specialized and unusually-shaped bagrid catfish genus Bagrichthys Bleeker, 1858, live in large muddy rivers throughout Southeast Asia and are characterised by their elongate and laterally compressed caudal peduncle, the dorsally-directed serrations on the posterior edge of the dorsal-fin spine, gill membranes united but free from the isthmus, and a long adipose fin without a free posterior margin (Roberts, 1989).] from [Members of the highly specialized and unusually-shaped bagrid catfish genus Bagrichthys Bleeker, 1858, live in large muddy rivers throughout Southeast Asia and are characterised by their elongate and laterally compressed caudal peduncle, the dorsally-directed serrations on the posterior edge of the dorsal-fin spine, gill membranes united but free from the isthmus, and a long adipose fin without a free posterior margin (Roberts, 1989).].
Identification changed to [First imports of this species began to show up around 2022 but are very rare. This species has the tallest dorsal fin of its congeners and is also the largest fully grown.] from [It is very unlikely this fish has ever been available to the aquarium hobby. We can but hope.]. - May 15, 17:24 (Pseudopimelodidae)
- May 15, 17:23 (Pseudopimelodidae) [changes]
Type_locality changed to [Cayenne, French Guiana [probably Paramaribo, Suriname].] from [Probably Cayenne, French Guiana.]. - May 15, 01:23 (Callichthyidae) [changes]
Brazil_negative_list changed to [n] from [].
Iucn_category changed to [NE] from []. - May 13, 08:26 (Heptapteridae) New Species
- May 13, 06:13 (Callichthyidae) [changes]
Literature changed to [Proceedings of the Zoological Society of London 1895 (pt 3), pp 525.] from [Proc. Zool. Soc. Lond. 1895 (pt 3) 525 ].
Identification changed to [This species is sometimes confused with Callichthys callichthys. The visible coracoit bones by the pectoral fins is an indication that it is some form of Hoplosternum or Lepthoplosternum species. In Callichthys, this area is covered by skin and not visible (although the same bone is there in the fish. Callichthys also has a flatter overall body.] from [This species is sometimes confused with Callichthys callichthys. The visible coracoit bones by the pectoral fins is an indication that it is some form of Hoplosternum or Lepthoplosternum species. In Callichthys, this area is covered by skin and not visible (although the same bone is there in the fish. Callichthys also has a flatter overall body. ]. - May 12, 13:44 Imparfinis arceae (Heptapteridae) [changes]
Desc_by changed to [Silva, Sabaj Pérez, Carvalho & Oliveira] from [].
Year changed to [2025] from [0].
Original_desc changed to [y] from [].
Literature changed to [Ichthyology & Herpetology v. 113 (no. 1), pp Figs.] from []. - May 12, 13:43 Exostoma microadiposa (Sisoridae) [changes]
Desc_by changed to [Chen, Tan & He] from [].
Year changed to [2025] from [0].
Original_desc changed to [y] from [].
Literature changed to [Journal of Ichthyology v. 65, pp Figs.] from []. - May 08, 08:42 (Sisoridae)
- May 06, 06:12 (Aspredinidae) [changes]
Type_loc_lat changed to [0] from [-15.866666666667].
Type_loc_long changed to [0] from [-56.083333333333].
Distribution changed to [Paraná-Paraguay River system, Brazil, Paraguay and northern Argentina.] from []. - May 06, 06:06 (Callichthyidae) [changes]
Desc_by changed to [Nijssen & Isbrücker] from [Nijssen & Isbrücker].
Distribution changed to [South America: Upper Paraná River basin.] from [South America: Upper Paraná River basin.]. - May 06, 06:04 (Callichthyidae) [changes]
Desc_by changed to [Nijssen & Isbrücker] from [Nijssen & Isbrücker].
Type_loc_comp_lat changed to [-14.766666666667] from [0].
Type_loc_comp_long changed to [-47.5] from [0].
Brazil_negative_list changed to [n] from [].
Breeding changed to [Spawning notes kindly provided by Eric Bodrock from Oct. 2008. Set up consists of several males per female. Females larger than males and easily sexable. Ten-gallon tanks are fine for these guys since they don’t grow very large. Not a problem to keep a group of 20 breeders together. The pH isn’t very critical, but don't allow it to drop too low, under 6.6 isn’t good for them for spawning and the best range for them is between 6.9-7.2. The temperature should be in the mid to upper 70°F (23 – 25°C) range. They prefer an area in a strong current to deposit eggs, such places as the inside of filter lift tubes or on the glass directly in the flow of a power filter. In addition, they will use plant matter or artificial mops located in the current. Spawns are rather small and deposit up to 40 eggs, sometimes over a two day period. The hatch rate is generally high, fry grow rapidly.] from [Has been bred in the aquarium.]. - May 05, 02:14 (Heptapteridae) [changes]
Sl changed to [225] from [200].
Distribution changed to [Central America: Costa Rica and Panama.] from [River basins from central Mexico to northern Panama: Belize, Costa Rica, Guatemala, Honduras, Mexico and Panama.]. - May 04, 23:40 Propimelodus lobatus (Pimelodidae) [changes]Desc_by changed to "Torrico-Destre, Careaga & Carvajal-Vallejos" from "".
Year changed to "2025" from "0".
Original_desc changed to "y" from "".
Literature changed to "Journal of Ichthyology v. 65, pp Fig." from "". - Apr 30, 12:04 (Callichthyidae) [changes]
Original_desc changed to [n] from [y].
Type_locality changed to [Las Mangas, in a tributary of Río Parguaza, western Bolivar State, Venezuela, 6°20'N, 67°10'W.] from [Las Mangas, in a tributary of Río Parguaza, western Bolivar State, Venezuela, 6°20'N, 67°10'W.].
Etymology changed to [Latin concolor = coloured uniformly.] from [Latin concolor = coloured uniformly.].
Genus_feeding changed to [Will readily accepted all prepared foods that reach the bottom of the aquarium such as tablets, granules and larger flakes. Live (or frozen) foods such as bloodworm, white worm, grindal worm (Enchytraeus), Daphnia and Tubifex are readily accepted and good for conditioning groups of fishes for spawning.] from [Will readily accepted all prepared foods that reach the bottom of the aquarium such as tablets, granules and larger flakes. Live (or frozen) foods such as bloodworm, white worm, grindal worm (Enchytraeus), Daphnia and Tubifex are readily accepted and good for conditioning groups of fishes for spawning.].
Tankmates changed to [Certainly will enhance your community tank as long as it is at least 24'' long with 36'' being a better option. The usual community fish will suffice, but I am suspicious of a few of the Barb family as they do tend to nip the dorsals of Corydoras, so pick carefully.] from [Certainly will enhance your community tank as long as it is at least 24'' long with 36'' being a better option. The usual community fish will suffice, but I am suspicious of a few of the Barb family as they do tend to nip the dorsals of Corydoras, so pick carefully.].
Browse the full Image, Species, BLog, Aquaria, Wishlist, Spotter or My Cats updates!
/siluriformes/callichthyidae/brochis(sc3)/heteromorpha/1.jpg "Brochis (sub-clade 3) heteromorpha")
/siluriformes/ailiidae/laides/sinense/1.jpg "Laides sinense")
/siluriformes/ailiidae/laides/montanum/1.jpg "Laides montanum")
/siluriformes/heptapteridae/rhamdioglanis/frenatus/1.jpg "Rhamdioglanis frenatus")
/siluriformes/ariidae/sciades/herzbergii/1.jpg "Sciades herzbergii")
/siluriformes/ariidae/sciades/couma/1.jpg "Sciades couma")
/siluriformes/loricariidae/hypostomus/plecostomus/1.jpg "Hypostomus plecostomus")
/siluriformes/pimelodidae/brachyplatystoma/vaillantii/1.jpg "Brachyplatystoma vaillantii")
/siluriformes/pimelodidae/pimelodus/argenteus/1.jpg "Pimelodus argenteus")
/siluriformes/callichthyidae/megalechis/thoracata/1.jpg "Megalechis thoracata")
/siluriformes/callichthyidae/callichthys/callichthys/1.jpg "Callichthys callichthys")
/siluriformes/aspredinidae/aspredo/aspredo/1.jpg "Aspredo aspredo")
/siluriformes/aspredinidae/aspredinichthys/filamentosus/1.jpg "Aspredinichthys filamentosus")
/siluriformes/auchenipteridae/pseudauchenipterus/nodosus/1.jpg "Pseudauchenipterus nodosus")
/siluriformes/auchenipteridae/trachelyopterus/galeatus/1.jpg "Trachelyopterus galeatus")
/siluriformes/loricariidae/rineloricaria/buckupi/1.jpg "Rineloricaria buckupi")
/siluriformes/callichthyidae/brochis(sc3)/ornata/1.jpg "Brochis (sub-clade 3) ornata")
/siluriformes/callichthyidae/brochis(sc3)/cryptica/1.jpg "Brochis (sub-clade 3) cryptica")
/siluriformes/callichthyidae/brochis(sc3)/ephippifera/1.jpg "Brochis (sub-clade 3) ephippifera")
/siluriformes/callichthyidae/brochis(sc3)/robusta/1.jpg "Brochis (sub-clade 3) robusta")
/siluriformes/loricariidae/hypancistrus/seideli/1.jpg "Hypancistrus seideli")
/siluriformes/bagridae/bagrichthys/hypselopterus/1.jpg "Bagrichthys hypselopterus")
/siluriformes/pseudopimelodidae/pseudopimelodus/aff_bufonius/1.jpg "Pseudopimelodus aff. bufonius")
/siluriformes/pseudopimelodidae/pseudopimelodus/bufonius/1.jpg "Pseudopimelodus bufonius")
/siluriformes/callichthyidae/hoplisoma/sp%28cw111%29/1.jpg "Hoplisoma sp. (Cw111)")
/siluriformes/heptapteridae/cetopsorhamdia/sp%60rio_taruma%60/1.jpg "Cetopsorhamdia sp. `RIO TARUMA`")
/siluriformes/callichthyidae/lepthoplosternum/pectorale/1.jpg "Lepthoplosternum pectorale")
/siluriformes/sisoridae/erethistes/minusculus/1.jpg "Erethistes minusculus")
/siluriformes/aspredinidae/amaralia/oviraptor/1.jpg "Amaralia oviraptor")
/siluriformes/callichthyidae/aspidoras/fuscoguttatus/1.jpg "Aspidoras fuscoguttatus")
/siluriformes/callichthyidae/aspidoras/albater/1.jpg "Aspidoras albater")
/siluriformes/heptapteridae/rhamdia/laticauda/1.jpg "Rhamdia laticauda")
/siluriformes/callichthyidae/hoplisoma/concolor/1.jpg "Hoplisoma concolor")
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This month's featured species is Hypoptopoma sp. (1). Are you looking for in-depth on a particular species? Then check out the vast CotM Archives.
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Breeding Farlowella by Amanda Parker. The author describes the breeding of two species from the genus in a thorough and descriptive article.
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