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Family: RHINOCHIMAERIDAE, Longnose Chimaera, Longnose Chimaeras


All Families:   All Genera:   All Species:

snout very long, tapering
male sex organ stick-like
C lower lobe larger

FAMILY RHINOCHIMAERIDAE

LONGNOSE CHIMAERAS

Body compressed, elongate, tapering to a filamentous tail; head very large; snout very long, elongate, spear-like; eyes large, bright green; nostrils large, before mouth, connected to outer corner of mouth by a deep groove covered with a flap; mouth under head; teeth are plates, 2 pairs above, 1 pair below; gill opening before pectoral, covered by fleshy operculum; 2 separate dorsal fins; 1st dorsal fin large, triangular, erect, with a long spine at front; 2nd dorsal fin low, long based; anal fin present or absent; pectoral fins broad, triangular; pelvic fins broad, triangular; tail fin elongate, lance-like, lower lobe distinctly larger than upper lobe , with a whip-like rear filament; lateral line canals well developed, on head and body noticeably open; skin smooth, no scales; males with large, simple, stick-like external sex organs.

Circumglobal; tropical to temperate (mostly); 3 genera with 9 species; one species from each of three genera in the region.

PREPARED BY D ROSS ROBERTSON, AFTER FAO