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



Polyprion kneri, Steindacliner (Wien. S. B., 1875, vol. Ixxi. p. 443). 



D. 10 -^t A. f. The height of the body is contained four and a half, the length of 

 the head nearly three times in the total length. Snout pointed, the lower jaw projecting 

 beyond the upper ; head entirely covered with scales, with the exception of the lips 

 which are naked. Intermaxillary band of teeth broader than that of the lower jaw, and 

 interrupted in the middle. An oval patch of villiform teeth on the tongue. Operculum 

 with two points, the lower of which is the termination of the straight, moderately raised, 

 and smooth opercular ridge. A median rough bony ridge on the hinder part of the 

 head superiorly. Dorsal spines moderately strong, shorter than the rays, the eighth 

 the longest. Caudal emarginate. Scales small. Juan Fernandez. Length of speci- 

 men, 24 inches. 



Scorpcena thomsoni, n. sp. (PI. XII.). 



D. 11 -g-, A. f, P. 16, L. lat. 42. The height of the body is contained twice and 

 two-thirds in the total length (without caudal), the length of the head, twice and a half. 

 Head nearly entirely naked ; interorbital space very concave and narrow, the two ridges 

 at its bottom being slightly prominent, divergent behind, and passing into the anterior 

 nuchal spines; nuchal fossa shallow, square; supraorbital tentacles moderately developed; 

 spines of the head strong and compressed. The third and fourth dorsal spines are the 

 longest, and nearly as long as the second of the anal, about two-fifths of the length of 

 the head. A band of palatine teeth. Reddish, marbled with darker ; all the fins light 

 coloured, scantily spotted. Length of specimen, 10^ inches. Juan Fernandez. 



Hajilodactylus punctatus, C. V., Valparaiso. 

 Chilodactylus monodactyliis, Carmich., Juan Fernandez. 

 Thyrsites atun, Euphrasen., Valparaiso. 

 Tracliurus trachurus, L., Valparaiso. 



Caranx georgianus, C. V., Juan Fernandez. 



Oaranx cMleyisig, Gay; Steindachner, Wien. S. B., 1875, vol Lxxi, p. 459. 



Latilus jugidaris, C. V., Valparaiso. 



Trigla picta, n. sp. (PL XIII. fig. A). 



D. 7/11, A. 12. Scales exceedingly small. Praeorbital spines short, only half as long 

 as the eye ; humeral spines extremely long and strong, as long as the eye ; prseopercular 

 spines rudimentary, the others of medium size. Interorbital space concave, equal in 

 width to the diameter of the eye. Dorsal spines strong, of moderate length ; the pectoral 

 reaches to the seventh anal ray. Lateral line not spiny. The whole body (with the 



