AquaticRepublic.com - Tetranematichthys barthemi (Auchenipteridae) All Fishes

Lateral view
Ventral view
Dorsal view
Female paratype

All Fishes Data Sheet
Scientific Name	**Tetranematichthys barthemi** Peixoto & Wosiacki, 2010
Common Name	Barthem's Shoe Head Catfish
Type Locality	Oriximiná, rio Araticum, rio Trombetas basin, 1°45'34.7"S, 56°22'35.5"W, Pará, Brazil.
Etymology	Tetranematichthys: From the Greek tetra, meaning four, nema, meaning filament, and ichthys, meaning fish; in reference to the number of barbels. The specific epithet barthemi is a tribute to Ronaldo Borges Barthem, researcher of the MPEG, for his contribution to the field of ichthyology, in particular to fisheries ecology in the Amazon.
Species Information
Size	176mm or 6.9" SL. Find near, nearer or same sized spp.
Identification	1. Lateral margin of head at anterior portion of orbit, parallel to the posterior limit of operculum, in ventral view (Fig. 5a); ventral region light or dark colored; presence or absence of digit-like projections on distal portion of mandibular barbel; length of mandibular barbel 5.2- 2.6% HL; length of main ray of upper caudal-fin lobe 14.5- 20.5% SL; body width at pectoral-fin insertion 82.1- 110.0% HO; head length 24.4- 31.0% SL ..................................................2 1a. Lateral margin of head at anterior portion of orbit, diverging laterally to posterior limit of operculum, in ventral view (Fig. 5b); uniform colour pattern with dark patches along the body; presence of digit-like projections on distal portion of mandibular barbel; length of mandibular barbel 6.3-23.5% HL; length of main ray of upper caudal-fin lobe 18.1-19.9% SL; body width at pectoral-fin insertion 117.0125.0% HO; head length 28.5-32.3% SL ............................................. .............................................................. T. quadrifilis (rio Guaporé Basin) 2. Dorsal region without blurred light area; dark patches of pigmentation present along the body; ventral region dark-coloured; one light coloured stripe present on the caudal-fin; pelvic-fin without distinct light coloured stripe; anterior margin of mandibular barbel with digit-like projections; length of mandibular barbel 7.4-24.6% HL; snout length 41.2-49.3% HL; body width at pectoral-fin insertion 69.279.3% HL ................................................... T. wallacei (rio Tocantins, rio Orinoco and several stretches of the rio Amazon, except rio Guaporé) 2a. Dorsal region with blurred light area; dark patches of pigmentation absent along the body; ventral region light-coloured; two light-coloured stripes present on the caudal fin; pelvic-fin with distinct light coloured stripe; anterior margin of mandibular barbel serrated on distal portion; length of mandibular barbel 4.5-6.0% HL; snout length 28.834.5% HL; body width at pectoral-fin insertion 82.1-88.7% HL..................T. barthemi (rio Saracá, rio Araticum and rio Urubu).
Habitat Information
Distribution	Lower Amazon, between the mouth of the rio Negro and the mouth of the rio Trombetas in Brazil. Amazon, Lower Amazon (click on these areas to find other species found there) Amazon, Lower Amazon, Trombetas (click on these areas to find other species found there) Login to view the map.
IUCN Red List Category	Least Concern , range map and more is available on the IUCN species page. Last assessed 2018.
Husbandry Information
Breeding	Unreported.
Breeding Reports	There is no breeding report.
Further Information
Reference	Neotropical Ichthyology v. 8 (no. 1), pp 70, Figs. 1-3, 5a.
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.
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Last Update	2025 Jan 02 00:48 (species record created: 2010 Mar 31 14:30)