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 All Fishes Data Sheet | |
|---|---|
| Scientific Name | Gelanoglanis pan Calegari, Reis & Vari, 2014 |
| Common Name | |
| Type Locality | Mato Grosso State, Itaúba, rio Teles Pires, tributary to upper rio Tapajós basin, 10°58’30"S, 55°44’3"W, Brazil. |
| Etymology | Gelanoglanis: Greek, gelanes, -es, -es = happy, smiling + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish. pan, named after the Greek God of fertility and male sexuality, due to the large gonopodium of the males. |
| Species Information | |
| Size | 25mm or 1" 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. G. pan is distinguished from all other congeners by the following combination of traits: Dorsal and pectoral fins with spine; 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. |
| Sexing | Proximal radials of anal-fin of mature males fused into single compound bone. Gonopodium in mature males in form of elongate, fleshy tube that originates anterior to the anal-fin base and extends one-half length of anterior margin of anal fin. |
| Habitat Information | |
| Distribution | Amazon, Lower Amazon, Tapajós, Upper Tapajós, Teles Pires (click on these areas to find other species found there) Login to view the map. |
| IUCN Red List Category | Data Deficient , range map and more is available on the IUCN species page. Last assessed 2020. |
| Husbandry Information | |
| Breeding Reports | There is no breeding report. |
| Further Information | |
| Reference | Neotropical Ichthyology v. 12 (no. 4), pp 701, Figs. 1-2, 4-5. |
| Registered Keepers | There is no registered keeper. |
| Wishlists | Love this species? Click the heart to add it to your wish list. There is no wish to keep this species. |
| Spotters | Spotted this species somewhere? Click the binoculars! There is no record of this fish being seen. |
| Forum BBCode | |
 | Look up G. pan on PlanetCatfish.com |
 | Look up G. pan on Fishbase |
 | Look up G. pan on Encyclopedia of Life |
 | Look up G. pan on Global Biodiversity Information Facility |
| LFS label creator ARN ref:1.22.1273.6559 | |
| Last Update | 2025 Jan 01 11:53 (species record created: 2015 Dec 27 00:29) |