Cat-eLog Right Arrow Auchenipteridae Right Arrow Centromochlinae Right Arrow Gelanoglanis

Down arrow Cat-eLog Data Sheet
Scientific Name Gelanoglanis stroudi  Böhlke, 1980
Common Name
Type Locality Río Metica, Colombia, 3°56'42"N, 73°02'23"W, depth 1.2-1.5 meters.
Etymology Gelanoglanis: Greek, gelanes, -es, -es = happy, smiling + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish. 
Down arrow Species Information
Size 36mm or 1.4" SL. Find near, nearer or same sized spp.
Identification Diminutive auchenipterid catfishes, distinguished by the following unique combination of characters: Single pair of chin barbels (vs. two pairs); pectoral spine, if present, lacking serrations on anterior margin; posterior nare large and immediately anterior to small eye; oblique, sinuous mouth with free fleshy flange around angle of gape; dorsal, anal, and paired fins short based with few rays; third pectoral-fin radial absent. Other shared traits include: Premaxillary tooth patches laterally oriented and widely separated anteriorly at midline; frontals sutured along midline for entire length; anterior fontanelle absent; vomer absent; mesopterygoid reduced to small round bone; mandibular ramus of lateral-line canal free from dentary.

Key for the species of Gelanoglanis (Calegari, Reis & Vari, 2014; Calegari & Reis, 2017)
1a. Pelvic fin almost reaching to the urogenital opening................ 2
1b. Pelvic fin falling short of the urogenital opening by a distance longer than the anal-fin length................ G. varii
2a. Dorsal and pectoral fins with spine................ 3
2b. Dorsal and pectoral fins lacking spine................ G. nanonocticolus
3a. Adult males with short gonopodium terminating at anal-fin origin; premaxillary teeth occupying two-thirds of length of premaxilla; anterior fontanel absent................ 4
3b. Adult males with long gonopodium extending posteriorly to midlength of base of anal fin; premaxillary teeth restricted to anterior portion of bone, occupying one-half or less of length of premaxilla; anterior fontanel present................ G. pan
4a. Dorsal-fin spine with strong serrae along posterior margin................ G. stroudi
4b. Dorsal-fin spine simple, without serrae along posterior margin................ G. travieso.
Sexing As in other members of the auchenipterid subfamily Centromochlinae, anal-fin forms an intromittent structure in adult males.
Down arrow Habitat Information
Distribution South America: Meta, Apure and Masparro River basins.
Orinoco, Middle Orinoco, Meta, Metica (click on these areas to find other species found there)

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IUCN Red List Category Least Concern, range map and more is available on the IUCN species page. Last assessed 2007.
Down arrow Husbandry Information
Breeding Reports There is no breeding report.
Down arrow Further Information
Reference Proceedings of the Academy of Natural Sciences of Philadelphia v. 132, pp 152, Fig. 1.
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Last Update 2020 Dec 26 03:16 (species record created: 2015 Dec 27 00:10)