CTPBINID^. 9 



Body sealeless or with rudimentary, non-imbricate scales. Pharyngeal teeth in 

 a single series 59. Parapuoxi.nus, p. 203. 



Body sealeless. Pharyngeal teeth in a double series. 



60. Meda, p. 263. 



b. Margin of the lower jaw not trenchant ; barbels present, small. 



Pharyngeal teeth in a single series 61. Tixca, p. 264. 



Pharyngeal teeth in a double series 62. Leucosomus, p. 266. 



c. Margin of the lower jaw trenchant. 



Upper and lower simple caudal rays not increased Ln number. 



63. ClIONDROSTOMA, p. 272. 



Upper and lower simple caudal rays very numerous. Pharyngeal bones with 

 the upper limb very broad and concave, separated by a deep notch from the 

 dentigerous portion 64. Orthodon, p. 275. 



Upper and lower .simple caudal rays very numerous. Pharyngeal bones without 

 a greatly dilated portion " 65. Acrochilus, p. 276. 



C. Anal fin of moderate length, extending forwards to below the 



dorsal. Lateral line, if complete, running in, or nearly 

 in, the middle of the tail. Pharyngeal teeth in a single 

 series. Ehobeina. 



Lateral line complete 66. Achilognathus, p. 276. 



Lateral line incomplete. Scales of moderate size. 



67. Ehodeus, p. 279. 



lateral line incomplete. Scales small 68. Pseudoperilampus, p. 280. 



D. Anal fin of moderate length or elongate. Lateral line running 



along the lower half of the tail. Abdomen not trenchant. 

 Dantonina. 



1. Dorsal fin with nine or more branched rays, the posterior being opposite 



to the anal Jin. 



Mouth narrow 69. Danio, p. 281. 



Mouth wide 70. Pteropsaeion, p. 284. 



2. Dorsal Jin with less than nine branched rays, inserted behind the ventrals. 



Mouth inferior, narrow. Pharyngeal teeth in three series. Suborbitals broad. 



71. AspiDOPARiA, p. 285. 



Mouth anterior, wide. Pharyngeal teeth in three series. Suborbitals broad. 



72. Barilius, p. 286. 



Mouth very wide. Pharyngeal teeth in two series. Suborbitals broad. 



73. BoLA, p. 293. 



Mouth of moderate width. Pharyngeal teeth in two series. Suborbitals not 

 dilated 74. Schacra, p. 294. 



3. Dorsal Jin with nine {fen) or less than nine branched rays, opposite to 



the ventrals; anal Jin not extending forwards to below the dorsal. 



Mouth extending to or to below the orbit ; barbels none. 



75. Opsahiichtiits, p. 295. 



Mouth not extending to the orbit ; barbels two. 



76. Squaliobarbus, p. 296. 

 Mouth not extending to the oi-bit ; barbels none. 



77. OcHETOBics, p. 298. 



