CYPRIXILJS. 



Si/no2)sis of the Genera. 



I. Pharyngeal teeth in a single series, exceedingly numerous, and 

 closely set. Dorsal fin elongate, opposite to venti-als ; anal 

 fin short. Barbels none. Catostomln-a. Xorth America and 

 Korth-castem Asia. 



Dorsal fin witli about 17 ravs; Literal line present. 



1. Catostomus, p. 12. 

 Dorsal fin with about 17 rays ; lateral line none. 



2. MoXOSTOMA, p. 20. 



Dorsal fin with about 30 or more rap; pharyngeal bones sickle-shaped, with 

 the teeth compressed and increasing in size downwards. 



3. ScxEROGXATni's, p. 22. 

 Dorsiil fin with about 30 or more rays; pharyngeal bones thin and compressed 



with a series of nearly equally minute compressed teeth. 



4. Cabpiodes, p. 24. 



II. Phaiyngeal teeth in a single, double, or triple series, in small 

 number, the outer series never containing more than seven 

 teeth. Never more than fotu- barbels, if any. Air-bladder 

 present, without osseous covering*. 



A. Anal fin very short, with five or six (exceptionally seven f) 

 branched rays. 



1. Lateral line running along the median liiu of the tail Dorsal 

 fin opposite to ventrals. Cypkinina. 



a. Dorsal fin with more than nine Irranchcd rays. 



a. Pharyngeal teeth in three series, the outer molar-like. 

 An osseous dorsal ray 5. Cvpeinus p. 25 



* The foUowing fish are so insufficiently described that their systematic posi- 

 tion cannot be ascertained from the accounts given : -^ r 



1. Cyprinus potail, Sykes, Trans. Zool. Soc. ii. p.354.— Beema River Dekkan 



2. Leuciscus nesogallicus, Cm: 8^ Fa', svii. p. 310.— If the specimens to which 



this name has been given really are from the Mauritius, thev cannot 

 belong to Leuciscus, as this genus is absent fi-om Tropical Africa as well 

 as India.— D. 9. A. 12. L. lat. 45. 

 3- — — caverii, Jerdon, Madr. Joum. Lit. # Sc. xv. p. 320.— Carerv River — 

 A. 6. 



4. flavus, Jerdon, I. c— Carnatic. — A. 6. 



5. Mnthogramme, Jerdon, I. c. p. 321.— Mysore and Camatic— A. 6 



6. microeep'.ialus, Jerdon, I. c. — Madras. 



7. argenteus, Ba.9iletvsky, Notiv.- Mem. Soc. Nat. Mosc. 1855. s. p. 232 



— Pekin. — A. 9, abdomen carinatum. 



^- presbyter, C. # V. svii. p. 307.— Bombay.- D. 11. A. 7. L. lat 26 



9- rubripes, Jerdo^n, I. c. p. 322. — Eowany Kiver. 



+ Compare Barbus obtusirosfris (p. 121), Barbus lawak (p. 149). and Hubo- 

 gnafhus regius (p. 185), which have ten or eleven anal rays. 



