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



the left side. Gill-membranes liroadly united below the throat. Gill-rakers short and 

 lanceolate. Ki Islands. 



Aniicitharus polyspihs, n. sp. (PI. XXII. fig. A). 



D. 106, A. 82, L. lat. 75. Height of the body is contained twice and two-thirds in 

 the total length (without caudal). The length of the head thrice and three- fourths. The 

 curve of the lateral line is rather open, its span being ec^ual to the length of the head 

 without snout. Snout about as long as the eye, which is one-fourth of the length of the 

 head. The eyes are separated from each other by a narrow scaleless ridge, the lower 

 being considerably in advance of the upper. Mouth obliquely ascending upwards, but 

 with the lower jaw scarcely projecting beyond the upper. The maxillary extends to 

 behind the front margin of the eye. Anterior teeth stronger and longer than the lateral. 

 The dorsal fin commences anteriorly on the snout, and is continued to the root of the 

 caudal. Its anterior rays are somewhat longer than the succeeding, but not longer than 

 those behind the middle of the length of the fin. Pectoral of the coloured side somewhat 

 longer than that of the blind, and rather more than half as long as the head. Ventrals 

 separate, opposite to each other, the anterior being rather in advance of the posterior. 

 Coloration transparent, with some small black spots regularly disposed, but not constantly 

 present. They form a series of three or four near the dorsal and ventral outlines ; another 

 along the lateral line ; a pair of spots occupying the basal portion of the caudal. Similar 

 but larger spots along the dorsal and anal fins. Ki Islands. Length of specimens, 

 7 and 8^ inches. Station 192 ; 129 fathoms. 



Pcecilopsetta, n. gen. (Pleuronectid^). 



Mouth rather narrow, the length of the maxillary being one-third of that of the 

 head. Each jaw with a narrow band of vilhform teeth. Vomerine and palatine teeth 

 none. The dorsal fin commences above the middle of the eye. Scales very small. Gill- 

 membranes united l,ielow the throat. 



Pcecilopsetta colorata, n. sp. (PI. XXII. fig. B). 



D. 61, A. 50. The height of the body is contained twice and one-fourth in the total 

 length (without caudal), the length of the head thrice and three-fourths. Lateral line 

 with a semi-circular curve above the pectoral fin, the diameter of which is equal to three- 

 fourths of the length of the head. Snout very short, with the jaws equal in front. Cleft 

 of the mouth obliquely ascending upwards, the maxillary reaching beyond the anterior 

 margin of the eye. Eyes large, one-third of the length of the head, opposite to each other, 

 separated by a narrow, flat, scaly space ; the upper encroaches upon the upper profile of 



