3. LIasis. 79 
b. 2 (Sc. 47; V. 278; Cornwallis Island, Rev. S. Macfarlane 
C. P) Torres Straits. C.]. 
(Type of L. cornwallisius.) 
e. Hgr. (Se. 47; V.275; Fly River, New Rey. S. Macfarlane 
C. 67). Guinea. [C. 
d. 9 (Se. 47; V. 278; S.E. New Guinea. Rev. S. Macfarlane 
C. 72). [C.}. 
3. Liasis olivaceus. (Puare IV. fig. 2.) 
Liasis olivaceus, Gray, Zool. Mise. p. 45 (1842); Dum. § Bibr. vi. 
p. 442 (1844). 
—— olivaceus, part., Gray, Cat. p. 92 (1849). 
Rostral broader than deep, just visible from above; internasals 
nearly twice as long as broad, more than half as long as the anterior 
prefrontals ; posterior prefrontals in contact with each other or 
separated by a small azygous shield; frontal about once and a half 
as long as broad, shorter than its distance from the end of the 
snout; a pair of small parietals; a single large loreal; one pre- 
and three or four postoculars ; thirteen to fifteen upper labials, first, 
or first and second pitted, sixth and seventh or seventh and eighth 
entering the eye; four or five of the posterior lower labials pitted. 
Scales in 69 to 75 rows. Ventrals 349-361; anal entire; sub- 
caudals 100-102. Uniform olive-brown above, yellowish beneath. 
Total length 1890 millim.; tail 360. 
North Australia. 
a. . (Sc. 71; V.350; Port Essington. Mr, Gilbert [C.]}. 
6.103), ; ~ (ype) : 
b. Hgr., stffd. Port Essington. Mr. Gilbert [C.}. 
e. én 69; V. 369; N. Australia. Dr. J. R. Elsey [P.]. 
d. 2 (Sc. 75; V. 349; N. Australia. Capt. Stokes [P. 
C. 100). . Pt 
4, Liasis mackloti. 
Liasis mackloti, Dum. § Bibr. vi. p. 440 (1844); Gray, Cat. p. 92 
(1849); Jan, Icon. Gén. p. 98, 1. 7, pl. vi. fig. 1 (1864). 
Rostral broader than deep, scarcely visible from above, with a 
feeble pit or groove on each side ; internasals a little longer than 
broad, hardly half as long as the prefrontals; two pairs of 
prefrontals, the posterior small and separated from each other by 
the anterior; frontal nearly once and a half as long as broad, as 
long as its distance from the end of the snout; a pair of parietals, 
with smaller shields behind them; a large loreal; one prw- and 
two postoculars; eleven upper labials, first and second pitted, fifth 
and sixth entering the eye; five of the posterior lower labials 
pitted. Scales in 53 to 55 rows. Ventrals 292-302; anal entire; 
subcaudals 85-94. Sooty brown above, with scattered small 
yellowish spots; belly yellowish or brownish. 
Total length 1680 millim. ; tail 260. 
Timor and Samao. 
