306 BULLETIN 188, UNITED STATES NATIONAL MUSEUM 



1&. Body not marked by transverse bands or saddles. 



14a. Body plain ; head greatly depressed ; cheeks much dilated ; size com- 

 paratively large bucculentus 



146. Body vpith a black longitudinal stripe extending from head to base of 

 caudal fin ; from upper margin of this stripe, over pectoral fin, extend 

 2 short vertical black bars in a yellovi^ area ; head conical ; cheeks not 

 dilated; size comparatively small binotatus 



NOEMACHEILUS FOWLERIANUS, new species 



Nemacheilus teavani (non Giinther), Fowler, 1937, p. 156, fig. 80-87 (Mepoon). 



Describing Nemacheilus heavani from a specimen 2 inches long 

 from Bengal, Giinther (1868, vol. 7, p. 350) did not satisfactorily 

 differentiate the species. He gave nine dark cross bands in addition 

 to a black streak across the base of the caudal, and blackish dots 

 on dorsal and caudal rays; depth five; head less than four; caudal 

 peduncle as deep as long; caudal fin slightly emarginate; pectoral fin 

 extending two-thirds to ventrals; origin of dorsal midway from tip 

 of snout to base of caudal. 



The figure of N. heavani published by Day (1878, vol. 2, pi. 156, 

 fig. 8) does not agree with his own description of the species or Avith 

 Giinther's description; for example, while the species was said by 

 Day to have 9 dark cross bands wider than the interspaces, his figure 

 of a specimen from Madras shows 13 or 14 dark cross bands, of which 

 the 4 or 5 anterior to the dorsal fin are represented as narrower than 

 the interspaces. 



Under the name Nemacheilus heavani^ Fowler (1937) listed eight 

 species, 3.5 to 4.2 cm. long, of a Noemacheilus from Mepoon, Central 

 Thailand, and figured all of them to show variations in coloration. 

 These specimens had, in addition to a narrow black band at the base 

 of the caudal fin, six or seven dark cross bands (including spots occupy- 

 ing the position of bands) , and did not agree with Giinther's account in 

 this respect and in the relative width of the cross bands and inter- 

 spaces. According to Fowler there are only two postdorsal bands, 

 but some of his figures (80, 81, 82, 86) show two bands and a spot, 

 the spot being variable in position and taking the place of either 

 the second or the third band ; the spot is, in fact, an incomplete band. 



For the foregoing and other reasons, it is not possible to reconcile 

 Nem/icheilus heavani of Fowler with Giinther's species, and it is 

 therefore proposed to recognize the fish that Fowler illustrated so 

 fully as a new form under the name Noemacheilus fowlerianus. The 

 holotype is in the Academy of Natural Sciences of Philadelphia (No. 

 69961), as are five paratypes (Nos. 69962-69966). Two paratypes 

 (U.S.M.M. No. 119700) are in the U. S. National Museum. 



