PHILIPPINE MACROUROID FISHES — GILBERT AND HUBBS. 477 

 31. COELORHYNCHUS MACROLEPIS, new species. 



Type-specimen.— Cat. No. 78220, U.S.N.M.; collected by the Alba- 

 tross in 236 fathoms at station 5111 in China Sea off southwestern 

 Luzon. It is 143 mm. long to the end of a large pseudocaudal of 10 

 rays, and 55.5 mm. to the anus. 



List of stations. 



This small and fragile species is represented in the collection by 

 58 specimens, varying in length from 27 to 70 mm. to the anus; 18 

 females, in which the heads measure from 41 to 52 mm., have ripe 

 or ripening ova. It is one of the most distinct species of the notatus 

 group, being distinguished from all of the others by its larger scales, 

 and from those species without a ventral fossa in numerous other 

 characters; the orbit is larger, the snout of different form, and the 

 squamation different in many details. 



Fin-rays — first dorsal. II, 9 (8 to 19 in paratypes) ; pectorals, 

 17 (or 16) ; centrals, 7 (constant). 



This is a slender form, with an arched dorsal contour more notably 

 elevated than usual at the origin of the first dorsal fin. The greatest 

 depth is contained 1.8 (to 2.0) times in the head; the width across 

 the bases of the pectoral fins, 2.5 (2.4 to 3.00) times, being a little less 

 than the depth of the body below the origin of the lateral line. In 

 distinction from all other species of the notatus group, with the ex- 

 ception of maculatm and velifer, the dorsal contour of the snout is 

 almost straight. The suborbital and preorbital portions of the infra- 

 orbital ridge are straight in outline; the ethmoid region is evenly 

 convex. The width of the snout across its anterolateral angles is 

 greater than the length of the snout before the angle. The dorso- 

 terminal plate varies widely in its length, which is contained from 

 3.0 to 4.3 times in the postorbital (3.7 times in the type). The sub- 

 opercle ends below and behind in the usual pointed flap. The inter- 

 orbital space is wider than in dorsali-s or argus, and the suborbital 

 is markedly broader. The maxillary extends backward a little be- 

 yond the vertical from the middle of the orbit. The teeth are villi- 

 form on the jaws; the outer premaxillary series is scarcely enlarged; 

 the barbel is short and slender. Six branchiostegals ; gill-membranes 



