384 CALIFORNIA ACADEMY OF SCIENCES. [Proc 3D Ser. 



fading into a purplish brown with a faint blue spot on each scale; dorsal and 

 anal blackish, darker anteriorly; ventrals light, the outer edges dusky; pecto- 

 rals and caudal yellowish, a black band across base of pectoral rays; edges 

 of caudal and tips of rays dusky. 



Dimensions. 



Length without caudal in millimeters 58 



Head in hundredths of length 27 



Depth 35 



Eye 9 



Distance from snout to dorsal 34 



Depth of caudal peduncle 13 



Length of pectoral 26 



Length of ventral 25 



Length of caudal 33 



Greatest height of dorsal 21 



Greatest height of anal 21 



Number of dorsal rays xiii, 14 



Number of anal rays 11, 14 



Scales 2)^—25—9 



This strongly marked species is described from a single 

 specimen collected by Jordan and Snyder at Wakanoura, 

 in Kii, Japan. It is numbered 6434 in the collection of 

 Stanford University. It differs from almost all other spe- 

 cies of Pomacentrus in the elongation of the body. 



Heptranchias deani, sp. nov. 



The shark occasionally taken on the coast of Japan, and 

 hitherto recorded as Notidaniis indicus, or better Hep- 

 tranchias indicus, is distinct from the latter species which 

 belongs to the East Indies and is not known either from 

 Japan or from California. 



Head narrow, as broad as deep; snout rather short, sharply pointed in 

 profile, narrowly rounded when viewed from above, its length from mouth 

 contained once and a half in cleft of mouth. Nostrils a little nearer mouth 

 than tip of snout. Mouth rather pointed or very narrowly rounded in front, 

 the width across lower jaw at base of cleft of mouth slightly less than length 

 of cleft of mouth. Upper teeth without lateral cusps, sharp and slender, 

 and hooked backwards at an angle from their base. Four teeth on each 

 side of lower jaw and a single tooth at tip of jaw, the cusps of each tooth on 

 a level forming a serrated cutting edge; the median tooth with a median 

 enlarged cusp and two or three small cusps on each side of it; the lateral 



