1905.] NATURAL SCIENCES OF PHILADELPHIA. 479 



fins also graduated so that posterior are longest. \''entral fiiLS united 

 posteriorly by a membrane, though both bases are distinct. 



Color in alcohol blackish-brown generally, disk pale brownish or 

 whitish. Narrow vermiculating lines of pale brownish on head above. 

 Upper surface of body with irregular, pale and somewhat vermiculating 

 diffuse lines, leaving possibly eight or nine blotches medianly. Three 

 laterally entire length of trunk. Dorsal and caudal brownish- white, 

 with about three broad blackish-brown transverse bands. Pectoral 

 and ventral dusky above, edges narrowly pale and upper surface mot- 

 tled with dark brown more or less diffusely. Ventral paler. Both fins 

 tinted with a little brownish below. Anal pale with a submarginal and 

 basal tinge of brownish. Iris slaty. 



Length 4 inches. 



A large series of 193 examples of all ages. Individual variation in 

 color is very noticeable. The larger or adult examples all have the 

 pale vermiculating lines on the head pronounced, though in some they 

 are more numerous. In a number of young examples If inches long 

 they are fewer, like the specimen described. The markings on the fins 

 and body also vary greatly, and sometimes the latter form vertical 

 bands. Some small examples are nearly uniform brown above in alco- 

 hol. Others have the upper surface of the head marked with very 

 numerous small brown spots, due to the equally numerous pale reticu- 

 lating lines. Young examples also differ in their relatively shorter 

 body and rounded profile of front of head when viewed from above. 



CYPRINID^. 



LABEONIN.E. 



29. Dangila cuvieri Valenciennes. 



Head 4f ; depth 3|; D, iv, 26; A. iii, 6; scales 35 in lateral line to 

 base of caudal and 2 more on latter: snout 2f in head; eye 3^; 

 interorbital space 2f ; pectoral Ij^g ; ventral 1^; least depth of caudal 

 peduncle 2^. Length 5yV inches. 



30. Osteochilus melanopleurus (Bleeker)." 



Four examples. One from the Kapuas river in western Borneo, 



^' Osteochilus vittatus (Valenciennes) . 



Three small examples in the Academy from the Paris Museum. Bleeker's 

 figure evidently represents the adult in which the lateral band is lost. The two 

 small examples before me have this very distinct, and above and below with 

 traces of indistinct series of pale spots longitudinally or parallel. Just before 

 root of caudal appears a dark spot, another at latter, and both in dark lateral 

 band. Traces of this are seen in the larger example, though its colors are paler. 

 It measures about 2| inches (72 mm.) in length. Bleeker's figure occurs in Atlas 

 Ichth., Ill, 1863, PI. (16) 117, fig. 2, not plate 17 or 118 as referred to in the text. 



