52 THE VOYAGE OF H.M.S. CHALLENGER. 



TJiercvpon theraps, C. V., Philippines. Station 203. 

 Prlacanthus, sp. (?). Station 194, ofl' Banda, in tow-net. 

 Scolopsis monogramma, C. V., Philippines. Station 203. 



Sehastes nenuUophtlmlmus, Gthr. Hitherto known from the West Indies and Mau- 

 ritius. Philippines. Station 201 ; 82 fathoms. 

 Tetraroge longispinis, C. V., Philippines. Station 203. 

 Lioscorpius longiceps, u. sp. (see p. 40). Station 204. Philippines. 

 Equula fasciata, Lac., Philippines. Station 203. 

 Equula dussumieri, C. V., Philippines. Station 203. 

 Acanthurus hepatus, L., Samljoangan. 



Champsodon vorax (PL XXIII. fig. A), (Gthr., Proc. Zool. Soc, 1867, p. 102). 



D. 5/17-20, A. 17-19. A series of numerous and apparently full-grown examples 

 enables me to correct an error in the original generic diagnosis, in which the bones of 

 the head are descrilied as unarmed. The angle of the pra^operculum is armed with a 

 long lanceolate spine obliquely directed upwards, and there are several denticulations on 

 the hind margin of the same bone. Also the pra3orbital has some obtuse spines. Eye 

 with one or two minute filaments at its supero-posterior angle. Two lateral lines become 

 very distinct as soon as the fish is dry, and both are provided with lateral vertical 

 branches. Length of specimens, 3 to 4 inches. Station 204 ; 115 fathoms. Philippines. 



Op)isthognathus macrolepis, Peters (Berl. Monatsber., 1866, p. 520). 



B. 6, D. J^, A. 13, L. lat. 56. The maxillary is not so much elongate as in the 

 other species ; it reaches beyond the eye, but not to the angle of the prseoperculum. The 

 height of the body is one-fifth of the total length (without caudal), the length of the 

 head a little less than one-third. Eyes very close together. The last spine of the dorsal 

 fin considerably shorter than the first ray. Dorsal fin with a large black spot between the 

 second and fourth spines. Length of specimen, 4 inches. Philippines. Station 201 ; 

 82 fathoms. 



Platycephalus, sp., young, Philippines. Station 203. Straits near Zebu; 18 

 fathoms. 



Peristethus murrayi, n. sp. (PI. XXXII. fig. A). 



D. 7/21, A. 20, L. lat. 30. Praeorbital processes narrow, narrower in their basal half 

 than towards their extremity ; their length is one-third of the distance between their 

 extremity and the front margin of the orbit. Snout and forehead without any spines ; a 

 small spine above the posterior margin of the orbit, and one on each side of the occiput. 

 Pr^opercular ridge prominent, trenchant, terminating in a slender spine nearly as long 



