16 Proceedings of the Biological Society of Washington. 



to another or to invade the rice fields. Natives call it nguok-la, 

 " Moon-pike," differentiating it from chau-la, " Grass-pike " — 

 Ophiocephalus. The reference is to the moon-like markings at 

 the caudal base. It is a good food-fish. 



There remain to be considered at greater length two carps 

 from Yunnan (a Hemiculter and Acanthorhodeus) apparently 

 undescribed; two from Fu-kien, a Cobitis, and a fish allied to 

 Leuciscus but with peculiar jaw, — and symbranch eels of the 

 genus Monopterus from each locality. Monopterus from various 

 parts of China is now referred to M. javanensis Lacepede, but I 

 find the material from Yunnan and Fu-kien separable, and see 

 no reason why either form should be identical with that in 

 Java, with the description of which neither agrees well. 



Cobitis dolichorhynchus, sp. nov. 



Resembles the striped loach, Cobitis taenia, which ranges from Europe 

 to Japan, but is more elongate, especially the snout. The type and only 

 specimen No. 7026, American Museum of Natural History, was collected 

 at Futsing. Fu-kien Province, China, by the Museum's Asiatic Expedi- 

 tion. It is 66 mm. long to base of caudal. Head 4.0 in this length, 

 depth 5.8. Snout 2.0 in head, pectoral 1.5, ventral 1.7, longest dorsal 

 ray 2.0, longest anal ray 1.9, caudal 1.5, depth of peduncle 2.0. Eye 3 

 in snout. Interorbital 1.5 in eye. 



A strong, unequally forked spine recumbent in an elongate pit which 

 extends forward from below the front of the eye. Body compressed, head 

 and snout strongly compressed. Interorbital flat. Mouth small, well under 

 the projecting snout, the gape reaching to below a point midway between 

 tip of snout and nostril. A pair of barbels near the tip of snout, another 

 at the end of the maxillaries, and a third in an intermediate position. 

 Besides these six, a short barbel at the nostril. A broad, fleshy, weakly 

 three-lobed membrane under the chin. Dorsal origin equidistant from 

 chin and caudal base. Ventral slightly in advance of middle of dorsal. 

 Pectoral reaching slightly more than half way to ventral, ventral slightly 

 more than half way to anal, anal not reaching caudal by a distance equal 

 to a third of head. Caudal rounded. Body covered with very small 

 scales. Dorsal 9. Anal 7. 



Color in spirits pale, darker on top of head, a dark streak from eye to 

 snout, dark specks on the cheek. Irregular dark cross blotches occupy- 

 ing most of the back. Below these a narrow dark stripe extends back- 

 ward from the nape, broken and mixed with the dorsal blotches behind 

 the dorsal fin. A row of more or less oval dark blotches from the center 

 of the side behind the gill cover to the lower caudal base, a faint dusky 

 shade connecting them. Between the blotches and the stripe above, a 

 ragged dark streak extends backward, terminating in widely spaced 



