Scientific Name
Chiasmodon niger
Common Name
Black swallower
Biology
Vertebrae: 43 - 44. This species is distinguished from its congeners by a set of characteristics: from C. braueri by the teeth on second ceratobranchial absent and supraorbital canal pores 7 ; from C. harteli by total vertebrae 43-45 , supraorbital canal pores 7 ; from C. microcephalus by teeth on basibranchials well developed, 3-18, always present on second basibranchial and often on third basibranchial and second hypobranchial ; from C. pluriradiatus and C. asper, by pectoral-fin rays 13-14 , tiny dermal spinules on body of specimens larger than 45.0 mm absent , fang in premaxillary head 1 , and supraorbital pores 7 and from C. pluriradiatus by lateral-line pores 86-93 ; from C. subniger, by teeth on second basibranchial present , infraorbital pores 14