Cat-eLog Right Arrow Auchenipteridae Right Arrow Auchenipterinae Right Arrow Trachelyopterus

Jump to next section Cat-eLog Data Sheet
Scientific Name Trachelyopterus porosus  (Eigenmann & Eigenmann, 1888)
Common Name
Type Locality Brazil.
Etymology Trachelyopterus: From the Greek, trachelos, meaning neck and pteron, meaning fin; in reference to the long cranial shield, which gives the appearance that the dorsal fin originates at the neck region. 
Jump to next section Species Information
Size 150mm or 5.9" SL. Find near, nearer or same sized spp.
Identification Body short and robust. Snout and sides of the head with conspicuous pores. Three grooves on the occipital bone form a pi-shaped figure, and are studded with pores; other pores on top of the head. Maxillary and post-mental barbels extending a little beyond base of pectoral, mental barbels extending beyond insertion of post-mentals. Lower jaw projecting. Humeral process extending obliquely upward, strongly granular, its lower margin serrate; reaching a little beyond middle of pectoral spine. Dorsal spine slender, its inner margin roughened, its anterior margin with a median series of diverging spines and two series of smaller teeth; the first ray higher than the spine. Anterior margin of the adipose fin continuous with the profile of the back. Caudal obliquely truncate. Anal fin strongly convex behind, higher posteriorly than anteriorly. Pectoral spine strongly serrate, the outer teeth much longer than the inner ones, especially near the tip of the spine. Lateral line somewhat undulating, with conspicuous pores. D. I, 5; A. 25; V. 6; P. I, 7.
General Remarks Dark reddish brown, with longitudinal interrupted bands; belly plain, lower side of head thickly dotted with darker; dorsal and anal fins spotted; caudal fin with irregular dark cross bars; inner surface of ventral and pectoral fins more or less dusky.
Jump to next section Habitat Information
Amazon, Lower Amazon, Arari (click on these areas to find other species found there)

Log in to view data on a map.
IUCN Red List Category Not Evaluated
Jump to next section Husbandry Information
Breeding Reports There is no breeding report.
Jump to next section Further Information
Reference Proceedings of the California Academy of Sciences (Series 2) v. 1 (pt 2), pp 154.
Registered Keepers Keeping this species? Why not .
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.
More on Trachelyopterus porosus
Look up Look up Trachelyopterus porosus on
Look up Fishbase Look up Trachelyopterus porosus on Fishbase
Get or print a QR code for this species profile, or try our LFS label creator.
Hits 184 hits.
Last Update 2019 Dec 19 00:22 (species record created: 2019 Dec 16 07:51)