228. BOULENGERINA. 307 
internasals two thirds the length of the prefrontals ; frontal once 
and a half to once and two thirds as long as broad, a little broader 
than the supraocular, as long as or a little longer than its distance 
from the end of the snout, shorter than the parietals; nasal 
in contact with the single preocular; two postoculars ; temporals 
2+2; six upper labials, third and fourth entering the eye; three 
lower labials in contact with the anterior chin-shields, which 
are shorter than the posterior. Scales finely striated, in 15 rows, 
Ventrals 120-128; anal entire; subcaudals 52-60. Dark olive 
above; some of the sutures between the upper labials black; a 
black occipital blotch in the young; yellowish or greyish olive 
beneath, the ventrals black at the base. 
Total length 460 millim.; tail 95. ’ 
South-west Australia. 
a. 9 (V. 1238; C. 55). Swan River. Haslar Collection. } 
oe (V. 124; C. 60). Swan River. | 
-e. 3 (V. 125 ; C. aha S. Australia. e(Types.) 
“OU V. 128; C5 2), & 
her. (Vv. 120; We 52). 
ae Fg (Ys 125; C. 58). ~§. Australia. Dr. Fleming [P.]. 
g. Skull of ¢. 
228. BOULENGERINA. 
Boulengerina, Dollo, Bull. Mus. Belg. iv. 1886, p. 159; Bouleng. 
Proc. Zool. Soc. 1895, p. 866. 
Maxillary bone extending forwards as far as the palatine, with 
a pair of large grooved poison-fangs followed by three or four small 
teeth; mandibular teeth, anterior longest. Head not distinct from 
neck; eye small, with round pupil; nostril between two nasals ; 
no loreal. Body cylindrical; scales smooth, without pits, in 21 
rows; ventrals rounded. ‘Tail moderate ; subcaudals in two rows. 
Central Africa. 
1. Boulengerina stormsi. 
Peuliipernin stormsi, Dollo, Bull. Mus, Belg. iv. 1886, p. 160, fig. ; 
Bouleng. Proc. Zool. Soc. 1895, p. 866, pl. xlviii. 
Rostral nearly as deep as broad, the portion visible from above 
measuring half its distance from the frontal; internasals- shorter 
and a little broader than the prefrontals, extensively in contact 
with the preocular; frontal small, slightly longer than broad, as 
broad as the supraocular, as long as its distance from the rostral, 
slightly more than half the length of the parietals; posterior tiasal 
in contact with the single preocular; two postoculars; temporals 
1+2; seven upper labials, third and fourth entering the eye, fourth, 
fifth, and sixth in contact with the lower postocular, third and sixth 
deepest ; four lower labials in contact with the anterior chin-shields, 
which are much longer than the posterior. Scales in 21 rows. 
Ventrals 193; anal entire; subcaudals 67. Brown above; four 
