FORMOSA* SNAKES. 



I99 



the frontal ; two postoculars, the lower one ol the left side coalescent 

 with the fifth supralabial ; temporals numerous, the upper smaller and 

 scale-like, the lower somewhat larger ; nine supralabials, the third, 

 fourth and fifth entering the eye ; five lower labials in contact with 

 anterior chin-shields which are larger than the posterior, the latter 

 separated by two pairs of elongated scale ; 2 1 rows of smooth scales ; 

 245 ventrals with sharp lateral angle ; anal divided. Colour (in 

 alcohol) pinkish gray with 56 reddish brown cross-bars on body and 

 about 32 on tail, the bars having darker margins and being continuous 

 in the posterior parts ; top of head yellowish brown, with ill-defined 

 markings ; a brown short band from tip of snout reaches to the 

 posterior border of prefrontal ; side of head of the ground colour, with 

 a brown, broad, horizontal postocular band extending to nape ; a 

 similar band from the posterior corner of supraocular reaches to the 

 level of the posterior border of parietals ; under side dusky white. 



Dimensions. 



Total length 1040 m.m. 



Length of tail 290 m.m. 



Type. — Bureau Sei. Res., specimen No. 57 ; locality and collector 

 unknown. 



Variation. —The lower preocular occasionally confluent with loreal . 



Measurements of the specimens. 



Collection. 



No. 



Locality. 



Date. 



Collector. 



jScalc rows. 



5 



s> 



Anal. 



Subcaudals. 



Oculars. 



V 



'SI 



. "ri 

 d IE 



3 " 



M 



Total 

 length. 



Length 

 of tail. 



B. Sei. Res. 



5« 



Kôshun 







21 



234 



2 



!54 



2,2 





Bel,' 

 9 K) 



m.ih. 

 I 120 



m.m. 

 320 



n 



57 









21 



2 45 



2 





Vi'Ki 





9 



IC40 



29c 





58 



Köshun 







21 



2 34 



2 



144 



2,2 





9 



I 122 



310 



Medical 

 School. 



59 

 18 



>9 



Shinchiku 



1903 



Matsuy&ma 



21 

 21 

 21 



235 

 247 



233 



2 

 2 



2 



158 



145 

 123 



2,2 

 2,2 

 2,2 





9 

 9 



ÎO.'LI 

 9 (R) 



5IO 



IO58 

 1280 



142 

 290 

 320 



