CYLINDROPHIS RUFA. 109 



CTLINDROPHIS RUFA, Gray. 



SPEC. CHAR. Tail conical, shorter than the head. Body above 

 black, brown, or rufous, either uniform or provided with obsolete, 

 transverse, white bars ; a white collar about the neck ; head and 

 extremity of tail black ; a white spot on the frontal plates. Beneath 

 white and black in alternate bauds. 



SYS. Anyuis rufa, LACK. Synops. Kept. 1768, 71. SHAW, Gen. Zool. Ill, ii, 

 1802, 586. 



An-juis rti/us, GMEL. Linn. Sjst. Nat. Ill, 1788, 1123. SCHN. Hist. Ampb. II, 

 1801, 333. 



Anyuis striatus, GMEL. Linn. Syst. Nat. Ill, 1788, 1119. 



Anyuis scytale, Rcss. Ind. Serp. Suppl. 1801, 30, PL xxvn. 



Anyuis corallina, SHAW, Gen. Zool. Ill, ii, 1802, 582, PL cxxxi. 



Eri/x rufa, BAUD. Hist. Xat. Kept. VII, 1803, 263. 



Tortrix rufa, MERE. Tent. Syst. Amph. 1820, 84. GRAY, Syn. Kept, in Griff. 

 Anim. Kingd. IX, 1831, 74. SCHIXZ, Naturg. Abbild. Kept. 1834, 131, PL XLVni, 

 tig. 2. SCHLEG. Ess. physiogn. Serp. I, 1837, 128, & II, 9, PL i, fig. 1-3. FILIP. 

 Catal. region. Serp. JIus. Pav. 1840, 13. 



Scytale seheuchzcri, MERR. Tent. Syst. Amph. 1820, 91. 



Uysia rufa, LiCHTEXsx. Verz. Doubl. Zool. Mus. Berl. 1823, 104. FITZ. N. Class. 

 Kept. 1^2t.i. 54. 



Cyllndfop'his rufa, GRAY, Zool. Miscell. 1842, 46. DUM. & BIBB. Erp. gen. VI, 

 1844, 595, i VII, i, 1854, 30. 



Cylindrophis nifus, CASTOR, Journ. Asiat. Soc. XVI, 1847, 53. 



DESCR. The head is subconical, of moderate development. The 

 snout is rounded. The eyes quite small and circular. The occipital 

 plates are but a little larger than the scales immediately behind them. 

 The vertex plate is conspicuous, subtriangular, with its summit directed 

 backwards, whilst its base is somewhat convex. There is but one 

 pair of frontal plates properly so called ; they are the largest on the 

 upper surface of the head. In advance of the latter, we observe a 

 pair of fronto-nasals, towards the inferior part of which the nostril 

 opens. The rostral is small and pyramidal, and entirely enclosed by 

 the fronto-nasals. The first labial is the smallest of the series ; it is 

 subquadrangular, transversely elongated, occupying the space opposite 

 the fronto-nasal plate. The second and third labials are superiorly 

 contiguous with the frontal ; the third is the largest, and, together 



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