from British New Guinea. 31 
21. Lygosoma atrocostatum, Less. 
22. albofasciolatum, Gthr. 
23. Lialis papuanus, Peters & Doria. 
24, Enygrus carinatus, Schn. 
25. Tropidonotus picturatus, Schleg. 
26. Stegonotus Guentheri, sp. n. 
Rostral much broader than deep, the portion visible from 
above measuring one fourth to one third its distance from the 
frontal; internasals shorter than the preefrontals ; frontal as 
long as broad, as long as its distance from the rostral, much 
shorter than the parietals; loreal about twice as long as 
deep; one pre- and two postoculars ; temporals 1+2; eight 
upper labials, fourth and fifth entering the eye; four or five 
lower labials in contact with the anterior chin-shields, which 
are longer than the posterior. » Scales in 15 rows. _Ventrals 
180-197; anal entire; subcaudals 75 pairs. Black or 
blackish brown above, turning to pale brown on the sides ; 
upper lip and lower parts white. 
Total length 1150 millim.; tail 230. 
Several specimens. 
27. Stegonotus reticulatus, sp. n. 
Rostral much broader than deep, the portion visible from 
above measuring one fifth to one fourth its distance from the 
frontal; internasals shorter than the prefrontals; frontal as 
long as broad, as long as its distance from the rostral, much 
shorter than the parietals ; loreal once and a half to twice as 
long as deep; two pre- and two postoculars; temporals 
2+3; eight upper labials, fourth and fifth entering the eye; 
four or five lower labials in contact with the anterior chin- 
shields, which are as long as or a little longer than the poste- 
rior. Scales in 17 rows. Ventrals 201-203; anal entire ; 
subcaudals 78 pairs. Pale greyish brown above, white on 
the sides, each scale edged with black; head uniform black 
above; lower parts white. 
Total length 1140 millim. ; tail 250. The larger specimen, 
with mutilated tail, measures 1080 millim. from snout to 
vent. 
Two specimens. 
28. Dendrophis calligaster, Gthr. 
29. lineolatus, Hombr. & Jacq. 
