Amphiarius rugispinis

Amphiarius rugispinis, the softhead sea catfish, is a species of sea catfish which is found along the northern coast of South America. It is found chiefly in turbid waters of estuaries and around river mouths; it originates from brackish and marine waters of Trinidad and Tobago, Guyana, Suriname, French Guiana, and Brazil.^[2] This species grows to about 45 cm (18 in) TL. Reproduction in A. rugispinis appears to be between September and November. The diameter of the eggs is 14–15 millimetres (9⁄16 in), numbering about 30–35 per female.

Softhead sea catfish
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Siluriformes
Family:	Ariidae
Genus:	Amphiarius
Species:	A. rugispinis
Binomial name
Amphiarius rugispinis (Valenciennes, 1840)
Synonyms
Arius rugispinis Valenciennes, 1840 Cathorops rugispinis (Valenciennes, 1840) Hexanematichthys rugispinis (Valenciennes, 1840) Notarius rugispinis (Valenciennes, 1840) Tachysurus atroplumbeus Fowler, 1931