402 BULLETIN 188, UNITED STATES NATIONAL MUSEUM 



Kao Sabap, Southeastern Thailand. The smaller specimen was sent 

 to the British Museum and there compared by J. R. Norman with 

 Boulenger's type of Ahysis inajor^ 13 cm. long. 



GLYPTOTHORAX PRASHADI Mnkerji 



Qlytotliorax prashadi Muberji, 1932, p. 281, fig. 1 (Kyenchaung River, Lower 

 Burma). 



This species, otherwise known only from a single specimen about 6.5 

 cm. long from Burma, was collected by the writer at two places in 

 the Tadi River, Nakon Sritamarat, Peninsular Thailand, in July 

 1928. Five specimens, 6.8 to 8.9 cm. long, were preserved. Com- 

 parison with the type showed full agreement. 



The relationship of this species to other local forms is indicated in 

 the key. The coloration is plain. 



GLYPTOTHORAX BUCHANANI, new species 

 FiGTTKE 89 



Description. — Body moderately compressed, its depth under dorsal 

 fin contained 4.25 times in standard length ; length of caudal peduncle 

 1.4 times its depth and 1.5 times in length of head; head moderately 

 depressed, its length 0.25 standard length and slightly greater than its 

 width ; eye 7.3 in head, 4 in snout, and 2.7 in interorbital space ; nasal 

 barbel extending 0.5 distance to eye, maxillary barbel reaching to 

 beginning of second third of pectoral spine, mandibular barbel reach- 

 ing base of pectoral spine, mental barbel somewhat more than 0.5 

 mandibular; thoracic adhesive apparatus of roughly quadrangular 

 shape, w^ith an acute point anteriorly, its width about 0.8 its length; 

 occipital process twice as long as broad ; entire surface of body and 

 head thickly beset with low, soft tubercles, which are lacking only 

 on the sucking apparatus and the median line of abdomen. 



Fins : Origin of dorsal fin midway between tip of snout and adipose 

 fin; dorsal rays I, 6, the spine 1.5 in head and the longest soft ray 

 equal to depth of body ; adipose fin entirely over anal fin, thickly cov- 

 ered with minute tubercles, separated from dorsal fin by a space about 

 twice the length of its base; caudal fin well forked, its longest rays 

 shorter than head ; anal rays iv, 8, longest ray equal to longest dorsal 

 ray and shorter than ventral; ventral rays i, 6, extending beyond 

 origin of anal, origin of fin under last dorsal ray ; pectoral as long as 

 head and reaching ventral, the rays I, 9. 



Coloration: Back and sides, top and sides of head uniform dark 

 brown; belly and underside of head whitish; lateral line white; a 

 conspicuous yellowish wing-shaped spot on either side of the first dor- 

 sal ray ; all fins dark brown at base, white distally, the pectorals with 

 a median dark cross band. 



