49. DiNODON. 361 



Synopsis of the Species. 



I. Scales smooth, in 17 rows ; anal entire. 



1. rufozonatus, p. 361. 



II. Scales feebly keeled, in 17 rows. 



A. Anal entire ; a prseocular. 

 Portion of rostral visible from above 



half as long as its distance from the 



frontal 2. semicarinatus, p. 362. 



Rostral just visible from above 3. septentrionalis, p. 363. 



B. Anal divided ; no prseocular, loreal entering the eye. 



4. japoniciis, p. 363. 



III. Scales feebly keeled, in 21 rows ; anal divided. 



5. tessellatus, p. 364. 



1. Dinodon rufozonatus. 



Lycodon rufozonatus, Cantor, Zool. Chusan, pi. xi. (1840), and Ann. 



8f Mag. N. H. ix. 1842, p. 483 ; Gmith. Cat. p. 204 (1858), and 



Mept. Brit. Ind. p. 319 (1864) ; Jan, Icon. Gen. 36, pi. iv. fig. 3 



(1870). 

 Dinodon cancellatum, Dum. ^ Bibr. vii. p. 447 (1854). 

 Coronella striata, Hallow. Proc. Ac. Philad. 1856, p. 152. 

 Eumesodon striatus. Cope, Proc. Ac. Philad. 1860, p. 263. 

 Dinodon rufozonatus, Petejs, Sitz. Qes. naturf. Freunde, 1881, p. 89. 

 rufozonatus, var, formosana, Boettg. Ber. Offenb. Ver. Nat. 



24-25, 1885, p. 124. 



Rostral a httle broader than deep, visible from above ; internasals 

 much shorter than the prefrontals ; frontal as long as broad or a 

 little longer, as long as its distance from the rostral, shorter than 

 the parietals ; loreal elongate, sometimes entering the eye ; one 

 prseocular; two postoculars (rarely one); temporals 2+3; eight 

 (rarely seven) upper labials, third, fourth, and fifth (rarely second, 

 third, and fourth, or only fourth and fifth) entering the eye ; five 

 (rarely four) lower labials in contact with the anterior chin-shields, 

 which are as long as or longer than the posterior. Scales smooth, 

 in 17 rows. Ventrals 185-204; anal entire; suboaudals 57-83. 

 Yellowish, reddish, or pale brown above, with dark brown cross bars 

 wider than their interspaces, and an alternating lateral series of 

 dark brown spots ; upper head-shields dark brown, with yellowish 

 borders ; upper lip and lower parts yellowish ; lower surface of tail 

 spotted with brown. 



Total length 1020 miUim. ; tail 190. 



China and Corea. 



a. S (V. 202 ; C. 73). Hoi-How, Hainan. J. Neumann, Esq. [P.]. 

 6-e. d" (V. 189; 0. Formosa. R. Swinhoe, Esq. [C.]. 



76) & yg. (V. 199; 



0.83). 



