10. TEOPIDONOTTJS. 233 



34. Tropidonotus annularis. 



Tropidonotus annularis, Sallow. Proc. Ac. Philad. 1856, p. 161; 



Giinth. Cat. p. 67 (1858), and Rept. Brit. Ind. p. 261 (1864) ; Jan, 



Arch. Zool. Anat. Phys. iii. 1865, p. 223. 

 chinensis, Berthold, Ootting. Nachr. 1859, p. 180. 



Eye rather small. Eostral broader than deep, just visible from 

 above ; nasal usually semidivided ; internasals longer than broad, 

 much narrowed anteriorly, as long as or longeir than the prsefrontals ; 

 frontal once and two thirds to twice as long as broad, as long as its 

 distance from the end of the snout, much shorter than the parietals ; 

 loreal as deep as long or longer ; one prseocular ; two postoculars 

 + one subocular; temporals 2+3 (rarely 1 + 3); eight or nine 

 upper labials, fourth or fifth (rarely fourth and fifth) entering the 

 eye ; five lower labials in contact with the anterior chin-shields, 

 which are shorter than the posterior. Scales very strongly keeled, 

 of outer row smooth, in 19 rows. Ventrals 145-161 ; anal 

 divided ; subcaudals 54-69. Olive above, with small black spots ; 

 labials yellow, with black sutures ; sides and lower parts yellow 

 or red, with regular black cross bands, which may be interrupted in 

 the middle. 



Total length 820 millim. ; tail 150. 



China. 



a-d. $ (V, 148, 147, 145; Mountains North of A.E.Pratt,Esq.[C.]. 



C. 54, P, ?) & yg. (V. 153 ; Kiu Kiang. 



0. 69). 



e. Yg. (V. 151 ; 0. 57). Chi Kiang. Mr. Fortune [C.]. 



/. S (V. 161 ; C. 60). Ningpo. 



g, h. $ (V. 147, 153; C. ?, Formosa. R.Swinhoe,Eaq.[C.]. 



54). 



35. Tropidonotus tesseUatus. 



Ooronella tessellata, Laur. Syn. Rept. p. 87 (1768). 



Coluber hydrus. Pall. Reise, i. p. 459 (1771) ; Baud. Rept. vi. p. 438 



(1803) ; Pall. Zoogr. Ross.-As. iii. p. 36 (1811) ; Rathke, M4m. Sav. 



Etr. Ac. St. Pitersb. iii. 1837, p. 306, pi. i. figs. 1-7. 

 tessellatus, Bonnat. JSncycl. Mith., Ophiol. p. 60 (1790) ; Mikan, 



in Sturm, Deutschl. Faun. iii. Heft 4, pi. — (1805) ; Frivaldsky, 



Mm. Serp. Hung. p. 46 (1825). 



hydrophilus, Lindaker, Ahh. Bohm. Qes. Wiss. i. 1791, p. 123. 



Enhydris caspia, Oken, Lehrb. Naturg. iii. p. 232 (1816). 



Coluber gabinus, Metaxa, Mon. Serp. Rom. p. 34, pi. — . flg. 1 



(1823). 

 Tropidonotus tessellatus, part., Wagl. Syst. Amph. p. 179 (1830). 

 Coluber ponticus, Pall. Zoogr. Ross.-As. iii. p. 38. 

 Tropidonotus hydrus, Eichw. Zool. Spec. iii. p. 172 (1831) ; Nordm. in 



Demid. Voy. Russ. M4r. iii. p. 349, Rept. pi. x. (1840) ; Eichw. 



Faun. Casp.-Cauc. p. 110, pi. xxiv. (1841) ; Bum. 8f Bibr. vii. p. 564 



(1864) ; Gunth. Cat. p. 63 (1858) ; Jan, Arch. Zool. Anat. Phys. iii. 



1866, p. 220 ; Anders. Proc. Zool. Soc. 1872, p. 394 ; Strauch, Schl. 



Russ. R. p. 159 (1873) ; Blanf. Zool. E. Pers. p. 419 (1876), and 



