. 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. 19271 Nichoh and Pope, The Fishes of Hainan 369 anal is usually rather long. They are free-swimming fishes, frequently deep-bodied, sometimes slender. Good generic characters are to be found in extension of the keel onto the breast before the ventrals, presence or absence of dorsal spine, pr
. 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. 19271 Nichoh and Pope, The Fishes of Hainan 369 anal is usually rather long. They are free-swimming fishes, frequently deep-bodied, sometimes slender. Good generic characters are to be found in extension of the keel onto the breast before the ventrals, presence or absence of dorsal spine, projecting or included lower jaw, course of the lateral line. We include here all species with keeled belly, except for one or two with obvious affinities elsewhere, and call to mind no species without a keel entitled to be considered an Abramidin. This treatment will include in the Abramidinse one or two aberrant genera like Hypoph- thalmichthys, the true position of which is uncertain. Megalobrama Dybowski Dybowski, 1872, Verb. Zool. Bot. Gesell. Wien, XXII, p. 212. Type: Megalo- brama skolkovii = Chanodichlhys terminalis. Deep- or moderately deep-bodied; dorsal with an initial spine; jaws approximately equal; lateral hne sUghtly and evenly decurved; keel confined to the belly behind ventrals. A few species of eastern Asia not very closely related one to the other, nor very different from Ery- throcuUer and Hemiculter. Megalobrama melrosei, new species Description of Type.—Number 8378, American Museum of Natural History. Locality: Nodoa, Hainan. Length to base of caudal 66 mm. Depth in length ; head Eye in head ; snout ; interorbital ; maxillary ; depth of. Fig. 34. Megalobrama melrosei, type without caudal. peduncle ; its length ; pectoral ; ventral ; longest dorsal ray 1; longest anal ray ; lower caudal lobe Dorsal II, 7; anal 23. Scales 54. Teeth 3-rowed 5, 4, 2, slightly hooked. Compressed; breast broad and rounded; a low keel betwe
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