34, CTNOGIOSSUS. 501 



of that of the body. Brownish, with blackish-brown transverse 

 spots ; many rays of the vertical fins blackish. 



Ganges. 

 a. Four and a third inches long. Ganges. From the Collection of 

 the Zoological Society. 



21. Cynoglossus elongatus. 

 Plagusia potous, Bleek. Verhand. Batav. Genootsch. xxiv. Pleuron. p. 23. 



lingua, Cant. Catal. p. 233. 



Arelia lingiia, Kaup, I. c. 



D. 137. A. 107. C. 10. V. 4. L. lat. 95. 

 Two lateral lines on the left side, separated by about eight longi- 

 tudinal series of scales at the point of their greatest distance. [Both 

 ventrals are present ?], the left being the more developed, and con- 

 tiguous with the anal. Two nostrils : one between the eyes, and the 

 other before the lower angle of the lower eye. The upper eye is in 

 advance of the lower ; the width of the interorbital space equals that 

 of the orbit. Lips not fringed. The length of the snout is contained 

 twice and a third in that of the head. The rostral hook terminates 

 behind the symphysis of the mandibles. The height of the body is 

 contained six times and two-thirds in the total length, the length of 

 the head five times and a third. Reddish-brown, with distant, 

 rounded, irregular blackish-brown blotches ; caudal black. 



East Indian Seas. 

 a. Adult : skin. Pinang. From Dr. Cantor's Collection. 



22. Cynoglossus lingua. 



Cynoglossus lingua, Ham. Buck. Fish. Gang. pp. 32, 365. 

 D. 142. A. 112. C. 8. V. 4. L. lat. 105. 

 Two lateral lines on the left side, separated by thirteen longitudinal 

 series of scales at the point of their greatest distance. Eight side 

 with cycloid scales and with a single inconspicuous lateral line One 

 ventral, contiguous with the anal. Two nostrils : one above the 

 lower eye, the other in front of its lower angle. The upper eye is 

 slightly in advance of the lower ; the width of the interorbital space 

 is a little less than that of the orbit, which is one-fourteenth of the 

 length of the head. Lips not fringed. The length of the snout is 

 contained twice and a fourth in that of the head. The cleft of the 

 mouth extends behind the eyes, its angle being much nearer to the 

 gill-opening than to the extremity of the snout. The rostral hook 

 terminates behind the symphysis of the mandibles. The height of 

 the body is contained six times in the total length, the length of the 

 head five times and a quarter. Reddish-brown, uniform or clouded 

 with darker. 



Mouth of the Ganges. 

 a. Eleven inches long. Ganges. From the Collection of the Zoolo- 

 gical Society. 

 h. Adult: skin. Ganges. Presented by (r. R. Waterhouse, Esq. — 

 Probably type of the species. 



