so. 1324. ELASMOBRANCHIATE FISHES— JORDAN AND FOWLER. 595 



I. HEPTRANCHIAS DEANI Jordan and Starks. 

 ABUEAZAME (FAT SHARK). 



Heptranchias deani Jordan and Starks, Proc. Cal. Acad. Sci., 1901, L, p. 348; 

 Misaki. 



Head, 6 in length; width of body at pectorals, 1^ in head; eye about 

 4i; snout about 3^; width of mouth at corners, 2i; pectorals, 1^; base 

 of ventrals, 2; depth of caudal peduncle, 4i in head. 



Body very elongate, more or less rounded, though somewhat 

 depressed in front; tail compressed, elongate, tapering. Head elon- 

 gate, pointed, compressed, broader than deep; snout produced, com- 

 pressed above, flat, roundly pointed; eye large, anterior, lateral, supe- 

 rior; mouth large, triangular, narrowly rounded in front; symphysis 

 of mandible a little before eye, which is over anterior part of mouth; 

 lips not especially thick; corners of mouth forming a long groove 

 equal to one-half length of exposed dental margin of mandible; teeth 

 in upper jaw sharp, long, pointed, hooked backward, without lateral 

 cusps; a median tooth at symphysis of mandilde with two or three 

 small cusps on each side; teeth in mandible 4 on each ramus, each 

 tooth with a serrated cutting edge composed of or more cusps; first 

 cusp with a very small notch in front, second enlarged, and all arranged 

 in the formula 1+1 + 3+1, 1 + 1+4+1, 1+1 + 5+1, 1+1+6+1, accord- 

 ing to individualsize; while the cutting edge is continuous it is not 

 uniform and even, as depth of each tooth is a little less behind, edge 

 above a trifle oblique; inner l)uccal fold in mandible thick and fleshy; 

 tongue not free from floor of mouth; nostrils large, a])out midway on 

 snout below, between its tip and front of eye; interorl)ital width con- 

 vexly flattened. Spiracles small, superior, and about midway between 

 eye behind and gill-opening. Gill-openings large, ])road, becoming 

 progressively smaller behind, all entirely in front of root of pectoral. 



Body very finely roughened. 



Dorsal fin small, its greater portion before origin of the anal; anal 

 low, its base long; pectorals small, edges posteriorly slightly emargi- 

 nate; ventrals low, base long, origin nearer origin of anal than origin of 

 l)ectoral; caudal very long, lower l()])e deep in front, then very nari-ow 

 till near end, where a terminal notch is formed. Caudal peduncle 

 compressed, somewhat triangular in cross section, flattened above. 



Color in spirits dark gray l)rown above and on the uppei- parts of 

 tins, below pale or whitish; in a photograph in the Imperial Lhiiversity 

 a few whitish spots are shown. 



Length 3Sf inches (98 cm. 3 mm.). 



This description from the original type, a female, No. 12()20, ichthy- 

 ological collections, Leland Stanford Junior University Museum. It 



