219. DENISONIA. 333 
nasal entire or divided; no loreal. Body cylindrical; scales smooth, 
without pits, in 15 to 19 rows; belly rounded. ‘Tail moderate or 
short ; subcaudals single (in one species in two rows). 
Australia, Tasmania, Solomon Islands. 
Synopsis of the Species. 
I, Anal entire; frontal not much broader than the supraocular, 
once and a half to twice and two thirds as long as broad ; 
pupil round. 
A. Scales in 15 or 17 rows; nasal in contact with the preocular. 
1. Ventrals 136-160; subcaudals 38-57; scales in 15 (ex- 
ceptionally 17) rows. 
Frontal once and three fourths to twice 
as long as broad; ventrals 145-160 .. 1. superba, p. 335. 
Frontal once and two thirds to twice as 
long as broad; ventrals 138-151; a 
black muehal collar ...6. 1.600 ee eves 2. coronata, p. 335. 
Frontal twice to thrice as long as broad; 
- scales striated ; ventrals 136-151 .... 3. coronoides, p. 336. 
2. Ventrals 118; scales in 17 rows. 4. muelleri, p. 337. 
B. Scales in 19 rows; nasal not reaching the preocular ; ventrals 
167; subcaudals 35 ........... 5. frenata, p. 338. 
Il. Anal divided ; frontal much longer than broad; pupil round. 
A. Scales in 15 rows; nasal not reaching the preocular ; ventrals 
164; subcaudals 51............ 6. ramsayi, p. 338. 
B. Scales in 17 rows; nasal in contact with the preocular. 
Frontal once and two thirds to twice as 
long as broad ; ventrals 153-170 ; sub- 
ebudals 41-66 1. 0s fda ae as 7. signata, p. 338. 
Frontal once and a half as long as broad ; 
ventrals 147-168 ; subcaudals 33-45.. 8. demelii, p. 339, 
III. Anal entire; frontal much broader than the supraocular, once 
and one fifth to once and three fourths as long as broad ; pupil 
often vertically elliptic or subelliptic. 
A. Scales in 19 rows; ventrals 154-164; subcaudals 25-30. 
Nasal in contact with the prwocular .... 9. suta, p. 339. 
Nasal not reaching the prewocular ...... 10. frontalis, p. 340. 
B. Seales in 17 rows; ventrals 121-138; subcaudals 20-30. 
Anterior chin-shields as long as the pos- 
tOFLOl . .pissigas } Co wets RED ds © 11. flagellum, p. 340.' 
Anterior chire-nliohdis shorter than the 
posterior ..... be du’ pawyetete carte 12, maculata, p. 341. 
