Cathorops spixii, the Madamango sea catfish, raspfin sea catfish or spring cuirass,[1] is a species of catfish in the family Ariidae. 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 1and. It reaches a maximum total length of 30cm (10inches), more commonly reaching a TL of 20cm (10inches).
Cathorops spixii feeds on a variety of crustaceans, including amphipods, copepods, isopods; as well as bony fish and benthic invertebrates.[2] It is preyed upon by Arius parkeri and Elops saurus.[3] It is marketed commercially.
The species epithet refers to biologist Johann Baptist von Spix.