238 Mr. J. Y. Johnson on rare and little-known 



mouth on the left side of the body, and this side of the body is 

 rough with ciliated scales. Both jaws are set with minute teeth, 

 but only on the left side. 



The dorsal fin commences in front of the eyes, is rounded 

 behind, and is distinct from the caudal, which latter is slightly 

 rounded. The anal fin does not join the caudal, but terminates 

 over against the end of the dorsal. On both these fins a series 

 of small roughly ciliated scales extends along each ray. Both 

 are coloured pale brown, with dark brown spots forming irregular 

 lines. The left pectoral fin is shorter than the right in the pro- 

 portion of 2 to 3. 



Between the opercle and the caudal fin 70 scales were counted, 

 and in the height about 44. The lateral line is straight through- 

 out. 



A single example of this species has occurred, which was taken 

 in the month of February. It had a length of 5f inches, and a 

 height of 2 inches. The right pectoral fin was f inch long. 

 The fish took fifty inspirations per minute. This Mediterranean 

 species has been taken at the Canaries, and has been described 

 by M. Valenciennes in Webb and Berthelot's ' Hist. Nat. des 

 Canaries. 5 That naturalist assigns 50 rays to the dorsal fin ; 

 but this may possibly be a mistake of the printer ; and he says 

 that he found 50 rays in the anal fin, 8 rays in the pectoral fin, 

 and 5 in the ventral fin. He counted only 60 scales along the 

 flank. 



Rhombus cristatus, Lowe, Trans. Zool. Soc. iii. p. 15. 

 D.94. P. 10. V.6. A. 74. C. 17. 



Elliptico-oblong, sole-like ; the right side white, the left side 

 a palish sepia-brown, faintly marbled with deeper brown. The 

 height of the body to the total length is as 1 to 2§, and the 

 head to the total length is as 1 to 4^. The oval eyes are close 

 together, being only separated by a simple crest. The hinder 

 one is distant by about its own longer axis from the snout. The 

 iris next the mesial line of the body is spotted with white, is 

 much wider than on the outer side, and makes an angular 

 projection upon the pupil. There are minute pointed teeth on 

 both sides of both jaws; and I can only detect one row of 

 each, although Mr. Lowe says, " dentibus in maxilla superiore 

 uniseriatis, in inferiore anguste scobinatis." 



The dorsal fin commences, on the right side of the body, in 

 front of the eyes, and extends almost to the caudal fin. Some 

 of the rays at its fore end are produced (in the specimen the 

 second, third, fifth, and sixth), and these rays are free for much 

 of their length. The pointed pectoral fins are small, that on the 



