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 All Fishes Data Sheet | |
|---|---|
| Scientific Name | Heptapterus stewarti Haseman, 1911 |
| Common Name | |
| Type Locality | Serrinha Paraná, in a creek about one half mile from the Rio Iguaçú, Brazil. |
| Species Information | |
| Size | 139mm or 5.5" SL. Find near, nearer or same sized spp. |
| Identification | Deprá et al. (2022) redescribed the genus Heptapterus as having the following shared features: (1) Adipose fin extensively fused with the caudal fin; (2) caudal fin non-bifurcate (i.e., caudal fin not divided in two lobes; vs. bifurcate, with distinct dorsal and ventral lobes); (3) dark bars and stripes on back of trunk (vs. absence of dark bars and stripes on back of trunk); (4) 5-6 pairs of pleural ribs (vs. 8-9 ribs); (5) elongate body with a head length of 16.1-24.9% (vs. 25.5-27.3%); (6) posterior extension of mouth rim short, with rictus barely reaching vertical line through posterior nostril (vs. posterior extension of mouth rim longer, with rictus reaching vertical line between posterior nostril and eye); (7) premaxillary tooth plate with no posterolateral extension, or with a small one (vs. with a very long posterolateral extension); (8) pelvic-fin insertion posterior to vertical through insertion of dorsal fin (vs. anterior) and anal-fin insertion posterior to vertical through adipose-fin origin (vs. anterior); (9) 10-23 anal-fin rays (vs. 33-46); (10) anal and caudal fins separated (vs. anal fin confluent with the caudal fin); and (11) supraorbital pore 6 (s6) fused or closer to each other (vs. separate and closer to the eye than to each other). |
| Habitat Information | |
| Distribution | South America: Iguaçu River basin, Brazil. La Plata, Paraná, Iguazu (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 Reports | There is no breeding report. |
| Further Information | |
| Reference | Annals of the Carnegie Museum v. 7 (nos 3-4) (19), pp 376, Pl. 74. |
| 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 H. stewarti on PlanetCatfish.com |
 | Look up H. stewarti on Fishbase |
 | Look up H. stewarti on Encyclopedia of Life |
 | Look up H. stewarti on Global Biodiversity Information Facility |
| LFS label creator ARN ref:1.30.104.7368 | |
| Last Update | 2025 Jan 01 12:17 (species record created: 2019 Jan 24 18:55) |