Cat-eLog Right Auchenipteridae Right Auchenipterinae Right Trachelyopterus  |  | 

Down 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. 
Down 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.
Down Habitat Information
Distribution
Amazon, Lower Amazon, Arari (click on these areas to find other species found there)

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IUCN Red List Category Least Concern, range map and more is available on the IUCN species page. Last assessed 2020.
Down Husbandry Information
Breeding Unreported in the aquarium.
Breeding Reports There is no breeding report.
Down Further Information
Reference Proceedings of the California Academy of Sciences (Series 2) v. 1 (pt 2), pp 154.
Registered Keepers There is no registered keeper.
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Last Update 2019 Dec 19 00:22 (species record created: 2019 Dec 16 07:51)