224 TELEOSTEI. PUYSOSTOMI. 



two rostral and one maxillary pairs. . No spine on the head. 

 Dorsal fin of moderate length, commencing somewhat in advance 

 of the ventrals. Caudal forked. 



The appearance of this form is very similar to Acanthopsis, 

 except that there is no spine on the head. 



243. (1.) Nemachiliclithys rueppelli. (Fig. 83.) 



Cobitis riippelli, Sykes, Tr. Z. S. ii, p. 3GG, pi. 64, fig. 1. 

 Nemachilichthys riippelli, Day, Fish. India, p. 612, pi. civ, fig. 7 

 (see synon.). 



B.iii. D. 13(2/11). P. 13. V. 8. A. 7 (2/5). 0.19. 

 Length of head 5| in the total length. Eyes slightly behind 

 the middle of the length of the head. Barbels two well-developed 

 rostral pairs, also a maxillary pair. Scales moderately developed. 



Fig. 83. Nemachilichtkys rueppelli. 



Colour greenish yellow except on the abdomen, which is white ; 

 short brown bars along the lateral line, and the rays of the dorsal 

 and anal barred. Caudal with four posteriorly directed V-shaped 

 brown bars. A black spot at the base of the upper caudal lobe. 

 Hab. Deccan. 



9. Genus NEMACHILUS, van Hasselt. 



Syn. Aconra and Acourus, Swains. ; Acanthocobitis, Peters ; Orcias, 

 Sauvage ; Diplophysa, Kessler. 



Body elongate. Dorsal profile nearly horizontal. Barbels 

 eight or six, when the former number is present, the extra pair 

 belongs to the posterior nostrils ; none on the mandibles. No 

 spine on the head. Dorsal fin of moderate length, or short, situated 

 opposite the ventrals. 



Geographical Distribution. Fresh waters of Europe and Asia ; 

 inhabiting India, Ceylon, Burma, and the Malay Archipelago. 



Synopsis of Indian Species. 



A. Barbels 8. 



D. 9. Greenish, with small dark blotches. 1. N. evezardi, p. 226. 



B. Barbels 6. 



D. 16-20. Body barred; caudal slightly 



notched 2. N. pavonaceus, p. 226. 



