Rosenblattia robusta

Common Name

Stout Cardinalfish

Year Described

Mead & De Falla, 1965

Identification

Dorsal Fin: VII-VIII-I, 8
Anal Fin: II, 8
Pectoral Fin: 16-19
Lateral Line: 47-53
Gill Rakers: 20-26 (first arch)
Vertebrae: 10+15 = 25 total

Body extremely stout and stumpy. Jaw reaches anterior third of orbit. Symphysis of lower jaw with 2-5 enlarged teeth. Rest of jaw teeth tiny. Vomer with few teeth. Palatine with one row of teeth. Eye large. Opercle with a strong spine. Serrations on rest of opercle and also on preopercle and infraorbital bones. Fin spines very strong, with striations crossing them. Eighth dorsal spine, if present, is tiny and not connected to rest of fin with membrane. Pyloric caeca 7-9. Body and most of body covered in ctenoid scales. Lateral line complete.

Color

Adult fish uniformly blackish. Juveniles dark with pale caudal peduncles and a dark band.

Size

Maximum size to 10cm SL.

Habitat

Mesopelagic from 700-2000m.

Range

S. Brazil to Argentina. Southern temperate circumpolar.

References

Smith, M. M. and P. C. Heemstra (eds.). 1986. Smiths’ Sea Fishes. Macmillan South Africa, Johannesburg. i-xx + 1-1047, Pls. 1-144.