NO. 1377. FISIfES FROM II A W. 1 Il—jriUI). \X A XI) SNYDEH. < )4 .') 



Fiiniily OSTRACIID.E. 



26. OSTRACION CAMURUM Jenkins; Honolulu. 



27. LACTORIA GALEODON Jenkins; Hilo. 



Two spe('iiiuMi> from stoiuach of ('"/■i//>/i;r//(/ li'ippni'iis, .sciit t)\' Mr. 

 Henshaw. 



28. LACTORIA SCHLEMMERI Jordan and Snyder, new species. 



This species is closeh' related to L. dHiplinna Block and Schneider, 

 of Japan and the East Indies. Compared with Japanese examples it 

 differs in having- the spines better developed, and in yreater iiunil»(T. 

 there being two on the dorso-lateral ridge, one of which is opposite 

 the large median spine, the other l)etween the former and the orbital 

 spine; also in having the carapace deeper in the region of the ventro- 

 lateral ridge and broader near the anal tin, and the plates posterior to 

 the pectoral less granular. The only Hawaiian form with which it might 

 become confused is L. galeodon Jenkins. In this species the ventral 

 portion of the carapace is not translucent, the orbital s])ines are longer 

 and project in a more horizontal direction, and there are no spines on 

 the dorso-lateral crest posterior to the orbit. 



Head measured to gill opening 3.7 in length to base of caudal: dejjtli 

 2.3: snout 4.6: eye 2.7 in head: D. 9: A. l». 



Anterior profile of head very steep, inten"u[)tc(l l>y a constriction 

 one-third of di.stance between tip of snout and middle of interorltital 

 space; interorbital space V-shaped when viewed from before, the 

 depression extending almost to a level with upper edge of pupil; 

 carapace with live ridges, the dor.sal ridge scarcely evident, with a large 

 spine located midway Ix^tween tip of snout and base t)f caudal tin; 

 dorso-lateral crest with three spines, the anterior projecting upward 

 and forward from the orl)it: the posterior located slightly behind middle 

 of dorsal spine, midway between anterior edge of orbit and ]H)stcrior 

 end of carapace: the median, which is small and Aveak, located some- 

 what nearer to the orhital than the posterior spine; venti-o-lateral ritlge 

 with four spines, the tir.>;t very small, the second larger, located below 

 dorsal spine, the posterior one projecting l)ackward the distance 

 between it and the one of the opposite side e(iual to distance between 

 center of pupil and dorsal »pine. Ventral surface of carapace convex, 

 a slight median depression extending from breast to anal tin. Plates 

 o-ranular. except ten or twelve in the region posterior to jx'ctoral tin, 

 each with a central granule usually largei' than the others. 



Dorsal tin located midway between dorsal spine and end ^4 carapace; 

 base of anal tin occupying most of th(> spa«'e between vent and end «>f 

 carapace; pectoral just l)ehind vertical through posterior edge oi orbit. 



