Cat-eLog Right Arrow Loricariidae Right Arrow Hypostominae Right Arrow Hemiancistrus

Jump to next section Cat-eLog Data Sheet
Scientific Name Hemiancistrus guahiborum  Werneke, Armbruster, Lujan & Taphorn, 2005
Common Names L106, Spotted Orange Seam Pleco
Type Locality Río Ventuari at raudales Tencua 56 km ESE of San Juan de Manapiare, Venezuela, Amazonas, 05.04968°, -065.62722°.
Etymology Greek, hemi = the half. While the Greek, agkistron = hook, is thought to be the root of the term ancistrus, hemiancistrus can be taken to mean that these species have a part (not exactly HALF) of the features of the genus Ancistrus, but not ALL of the features. Named for the Guahibo, a tribe of people inhabiting parts of southern Venezuela and western Colombia for the help some members of the tribe provided in collecting specimens in the upper río Ventuari.
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Jump to next section Species Information
Size 125mm or 4.9" SL. Find near, nearer or same sized spp.
Identification Hemiancistrus guahiborum is distinguishable from the similar L122 by the formers higher body.
Sexing Females reach sexual maturity as small as 44mm (average female size, 64mm); males reach sexual maturity as small as 50mm (average male size, 75mm).
Jump to next section Habitat Information
Distribution Found in middle and upper rí­o Orinoco and its tributaries including the Rí­o Caura, Rí­o Ventuari, and Rí­o Ocamo, also found in Rí­o Casiquiare and Rio Bita.
Orinoco, Middle Orinoco (click on these areas to find other species found there)
Orinoco, Upper Orinoco (click on these areas to find other species found there)
Amazon, Middle Amazon (Solimoes), Negro, Upper Negro, Casiquiare (click on these areas to find other species found there)
Orinoco, Upper Orinoco, Ventuari (click on these areas to find other species found there)
Orinoco, Middle Orinoco, Caura (click on these areas to find other species found there)
Orinoco, Upper Orinoco, Ocamo (click on these areas to find other species found there)
Orinoco, Middle Orinoco, Bita (click on these areas to find other species found there)

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Temperature 25.0-31.0°C or 77-87.8°F (Show species within this range)
Other Parameters Natural habitat: Rocky region of river, heterogeneous structure consisting of porous rocks interspersed with solid rocks. Example, the Rio Bita: Average temperature, 30.9 ± 0.3°C (maximum, 31.1°C; minimum, 30.1°C), highly oxygenated (8.2 ± 0.1 mg O2/L), and slightly acidic (pH 6.6 ± 0.1).
Jump to next section Husbandry Information
Feeding Gut analysis indicates a diet consisting at least partly of bloodworms and other insect larvae/pupa.
Furniture The natural habitat of this fish is crevices on rocky bottom.
Breeding Unreported in captivity. In nature, breeds year-round; gravid females (typically carrying 48 ± 19 oocytes, minimum 39, maximum, 143) and juveniles are found all months of the year. Evidence suggests that spawning is not triggered by environmental changes such as flooding-induced decreases in water hardness. Males guard nests.
Breeding Reports There is no breeding report.
Jump to next section Further Information
References DATZ 8/1992 pp484-485
Neotropical Ichthyology, 3(4):543-548, 2005
Ajiaco-Martínez et al. (2012), Orinoquia vol. 16 (no. 2), pp. 40-51.
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Last Update 2015 Sep 13 09:11 (species record created: 2001 May 05 00:00)