81. RHADINZEA. 161 
in 15 to 21 rows; ventrals not or but ohtusely angulate laterally. 
Tail moderate or long; subcaudals in two rows. 
Central and South America. 
Fig. 15. 
Wu ; 
SWAQQQAY 
SQ WAY 
4 ttt Atif y AA Attttiled 4 
NK (“4 We Chil 
Maxillary and mandible of Rhadinea merremii. 
Synopsis of the Species. 
I. Scales in 15 to 19 rows. 
A. Anterior chin-shields at least as long as the posterior ; tail not 
more than one fourth of the total length. 
1. Six or seven upper labials, third and fourth entering the 
eye. 
a. Scales in 17 rows. 
Onespastocullar’ 73/502) fo acces. se. 1. leucogaster, p. 163. 
Two postoculars ; nostril between two 
HAGAN SU al rege shares, tas Ms Adal 2. breviceps, p. 164. 
Two postoculars ; nasal single ...... 3. calligaster, p. 164. 
6; Seales im 1o'rows-........ 4. mimus, p. 164. 
2. Hight upper labials, fourth and fifth entering the eye. 
a. Scales in 19 rows. 
a. Ventrals obtusely angulate laterally. 
Ventrals 147-159 ; subcaudals 50-73. 5. anomala, p. 165. 
Ventrals 186-198; subcaudals 75-92. 6. sagittefera, p. 165. 
B. Ventrals not angulate laterally. 
Suture between the frontal and the 
preefrontals not longer than that 
between the frontal, and the 
Bapaocmiares 2. dete ns seh t a ces: 13. obtusa, p. 171. 
Frontal wide, supraocular suture 
Bitorber Chan Anterior... .. 2... 14. serperastra, p. 172. 
VOL. Il. M 
