|Family||Scientific Name||Author||Year||Common Name|
|Etmopteridae||Etmopterus gracilispinis||Krefft||1968||Broadband Lantern Shark|
Unique Characters: Small sharks with cylindrical or slightly compressed bodies, without ridges between pectoral and pelvic fins and without precaudal pits and caudal keels. Head with 5 gill slits, all anterior to pectoral fins, the fifth not abruptly longer than the others; spiracles always present, large and just behind eyes. Eyes on sides of head, without nictitating eyelids. Two dorsal fins with a long strong grooved spine present on their anterior margins; dorsal fins small, angular, and with straight to strongly concave posterior margins; first dorsal fin usually smaller than second dorsal fin. Body and fins greyish to blackish brown, usually with conspicuous black marks and luminescent organs on abdomen, over pelvic-fin bases, on caudal peduncle, and on caudal-fin base.
Similar Species: None.