246 PEECY SLADEN TEUST EXPEDITION. 



back darker ; fins yellowish or dusky ; a dark spot on the basal part of the caudal 

 continued into a dusky stripe on each lobe. 



Sea of Oman, 140 to 200 fathoms. 



Three specimens, 70 to 100 mm. in total length, collected and presented to the British 

 Museum by F. W. Townsend, Esq. 



Champsodon vorax. 

 Champsodon vorax, Giintb. Proc. Zool. Soc. 1867, p. 102. 



Depth of body 5 in the length, length of head 3f . Snout scarcely longer than eye, the 

 diameter of which is 4| in the length of head and greater than the interorbital width. 

 Prtemaxillaries with a double notch anteriorly ; maxillary extending beyond the vertical 

 from posterior edge of eye ; distance from tip of snovxt to end of maxillary | the length 

 of head ; least distance between eye and maxillary considerably less than the diameter 

 of eye. Dorsal V, I 19 ; distance between origins of dorsals about f the distance from 

 tip of snout to origin of spinous dorsal. Anal 1 17 ; origin a little nearer to base of 

 caudal than to tip of snout. Yentrals f the length of head. 



China Seas. 



A single specimen, less than 60 mm. in total length, in poor condition ; type of the 

 species. 



Parapercididae. 



145. Parapercis punctulatu, C. & V. 

 Maldives, N. Male, 35 fathoms. 



Trichonotidae. 



PSAMMICHTHYS, gen. nov. 

 Body elongate, compressed, scaleless. Head naked ; eyes very small, superior, placed 

 close together ; anterior nostril tubular ; mouth oblique ; lower jaw pointed, strongly 

 projecting; maxillary exposed; teeth conical, in narrow bands in the jaws; gill- 

 membranes narrowly attached to the isthmus. A single dorsal fin with 19 rays, the 

 first 5 of which are flexible spines ; anal with 14 rays, the first spinous ; caudal somewhat 

 pointed ; pectoral with 8 rays ; ventrals close together, a little in advance of the 

 pectorals, each with a spine and 5 soft rays, the inner rays the longest. 24 myotomes. 



146. Psammichthys midus, sp. n. (Plate 31. fig. 1.) 



Depth of body 7 to 7^ in the length, length of head 4 to 4|. Snout short, maxillary 

 extending to below the eye or a little beyond. Dorsal V 14, the fifth spine rather 

 widely separated from the fourth and from the first articulated ray. Anal I 13. 

 Pectoral shorter than ventrals, which are ^ the length of head. Uniformly brownish. 



Seychelles Group, PrasUn Beef, from sand-sif tings. 



Three specimens, the largest 38 mm. in total length. 



147. Triclionotus setigerus, Bl. Schn. 

 Cargados Carajos, 20-30 fathoms. 



