Cathorops spixii

Cathorops spixii, the Madamango sea catfish, raspfin sea catfish or spring cuirass,^[2] is a species of catfish in the family Ariidae.^[3] It was described by Louis Agassiz in 1829. It is a tropical, marine and brackish water-dwelling catfish which occurs between Colombia and Brazil. It inhabits a depth range between 1 and 50 m (3.3 and 164.0 ft). It reaches a maximum total length of 30 cm (12 in), more commonly reaching a TL of 20 cm (7.9 in).^[3]

Cathorops spixii
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Siluriformes
Family:	Ariidae
Genus:	Cathorops
Species:	C. spixii
Binomial name
Cathorops spixii (Agassiz, 1829)
Synonyms[1]
Pimelodus spixii Agassiz, 1829 Arius spixii (Agassiz, 1829) Arius spixi (Agassiz, 1829) Cathorops spixi (Agassiz, 1829) Pimelodus albidus Spix & Agassiz, 1829 Arius nigricans Valenciennes, 1834

Cathorops spixii feeds on a variety of crustaceans, including amphipods, copepods, isopods; as well as bony fish and benthic invertebrates.^[4] It is preyed upon by Arius parkeri and Elops saurus.^[5] It is marketed commercially.^[3]

The species epithet refers to biologist Johann Baptist von Spix.^[3]