Male
Female
Male
Close-up of head
Male
Female
Close-up of head
Typical resting position
Resting after food
Male
Upper Rio Negro, Brazil
Female
 All Fishes Data Sheet | |
|---|---|
| Scientific Name | Tetranematichthys wallacei Vari & Ferraris, 2006 |
| Common Names | Wallace's Shoe Head Catfish Driftwood Catfish |
| Type Locality | Upper Rio Negro, São Pedro, mouth of Igarapé do Ibará, about 0°15'S, 66°46'W, Amazonas, Brazil. |
| Synonym(s) | |
| Etymology | Tetranematichthys: From the Greek tetra, meaning four, nema, meaning filament, and ichthys, meaning fish; in reference to the number of barbels. |
| Species Information | |
| Size | 206mm or 8.1" 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). 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 | South America Amazon, Lower Amazon, Tocantins (click on these areas to find other species found there) Amazon, Middle Amazon (Solimoes), Negro, Upper Negro (click on these areas to find other species found there) Amazon (click on these areas to find other species found there) Orinoco (click on these areas to find other species found there) Amazon, Lower Amazon, Tapajós (click on these areas to find other species found there) Login to view the map. |
| IUCN Red List Category | Least Concern , a distribution map is available on the IUCN species page. Last assessed 2020. |
| Husbandry Information | |
| Breeding Reports | There is no breeding report. |
| Further Information | |
| Reference | Copeia 2006 (no. 2), pp 169, Figs. 1A, 2, 4. |
| 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 are 9 records of this fish being seen, view them all. |
| More Resources | |
| Forum BBCode | |
 | Look up T. wallacei on PlanetCatfish.com |
 | Look up T. wallacei on Fishbase |
 | Look up T. wallacei on Encyclopedia of Life |
 | Look up T. wallacei on Global Biodiversity Information Facility |
| LFS label creator ARN ref:1.22.249.8 | |
| Last Update | Thu Jan 01, 1970 1:00 am (Species record created: Thu Jan 01, 1970 1:00 am) |