. Central Asiatic Expeditions of the American Museum of Natural History, under the leadership of Roy Chapman Andrews : preliminary contributions in geology, palaeontology, and zoology. Central Asiatic Expeditions (1921-1930); Scientific expeditions; Natural history; Scientific expeditions; Natural history. 1924] Fowler, Some Fishes Collected in China 393 Body moderately ovoid, strongly compressed, deepest at dorsal origin, post- ventral with slight median keel over which scales not passing and other edges all convexly rounded. Caudal peduncle strongly compressed, least depth 1% in its length o
. Central Asiatic Expeditions of the American Museum of Natural History, under the leadership of Roy Chapman Andrews : preliminary contributions in geology, palaeontology, and zoology. Central Asiatic Expeditions (1921-1930); Scientific expeditions; Natural history; Scientific expeditions; Natural history. 1924] Fowler, Some Fishes Collected in China 393 Body moderately ovoid, strongly compressed, deepest at dorsal origin, post- ventral with slight median keel over which scales not passing and other edges all convexly rounded. Caudal peduncle strongly compressed, least depth 1% in its length or 1% in head. Head well compressed, flattened sides slightly approximated below, upper profile sHghtly convex, lower more so; width 2 in its length, depth l}^. Snout convex, rather obtuse, length % its width. Eye rather large, hind edge midway in head length, diameter 1 in snout, iK in interorbital. Mouth small, inferiorly terminal, width \}i in eye. Maxillary largely concealed by preorbital, at least its expansion, which 3)^ in eye, or reaches opposite front nostril. Lips moderate, entire. Edges of jaws firmly coriaceous. Nostrils together, front one at last third in snout, pore-hke, and hind one a crescentic slit close behind, formed by cutaneous marginal flap of anterior. Interorbital broadly and evenly convex. Suborbital chain moderate, preorbital depth ji its length, which 1)3 in eye. Opercle Fig. 2. Chela nicholsi Fowler. Type. Gill-opening extends forward about opposite hind edge of eye. Gill-rakers 38 + 91, short, fine, slender, close-set, 2% in length of gill-filaments, which 1)2 in eye. No pseudobranchige. Pharyngeal teeth 6—7, strongly compressed, all with broad grind- ing-surfaces, and pointed but without hooks. Scales with 16 to 19 apical radiating striae, also 7 or 8 auxiliary marginals; basal circuli 45 to 60. Scales in even longitudinal series parallel with lateral line, scarcely smaller on breast and caudal base. Pointed scaly flap in ventral axil, a
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