10. EISTTaKUS. 



105 



Synopsis of the Species. 



Ventrals 232-252; suboaudals 51-62; 37- 



41 scales round the body; a series of 



suboculars 1. australis, p. 105. 



Yentrals 210-225; suboaudals 50-58; 31- 



33 scales round the body ; a series of 



suboculars 2. 



Ventrals 160-200 ; suboaudals 38-56 ; 33- 



43 scales round the body ; two or three 



labials entering the eye 3. carinatus, p. 107. 



Ventrals 131-146 ; subcaudals 15-21; 33- 



39 scales round the body ; a series of 



suboculars 4. asper, p. 109. 



hibronii, p. 106, 



1. Enygrus australis. 



Enygrus bihronii (mora Hombr. Sr Jacg.), Oirard, U.S. Explor. 



Exped., Herp. p. 117 (1858) ; Bavay, Mem. Soe. Linn. Nai-m. xv. 



1869, p. 32. 

 Boa australis, Montrouzier, Mev. et Mag. Zool. zii. 1860, p. 95. 



Snout prominent and obliquely truncate ; canthus rostralis 

 rounded. Eostral broader than deep, not visible from above ; head- 

 scales small, irregular, with small tubercles or short keels ; eleven 

 to fourteen scales from eye to eye across the forehead ; eye sur- 

 rounded by a circle of fourteen to eighteen scales ; ten to fourteen 

 upper labials, separated from the eye by a series of scales. Scales 

 rather strongly keeled, the keels forming straight lines on the 

 back ; 37 to 41 scales round the thickest part of the body. Ven- 

 trals 232-252 ; anal entire ; subcaudals 51-62. Coloration very 

 variable ; no black line along the side of the beUy. 



Total length 1130 miUim. ; tail 140. 



New Britain, Solomon Islands, New Hebrides, Loyalty Islands, 

 Samoa. 



A. Brown, olive, or reddish above, with a series of large darker 

 dorsal spots, which may be confluent into a zigzag band ; a 

 series of large light spots may be present along each side of 

 the body ; a dark streak on each side of the head, passing 

 through the eye, and a dark cross bar from eye to eye ; belly 

 spotted with brown or black. 



a. c? (So. 37; V. 239; 



C. 55). 

 h. S (Sc. 41; V. 237; 



C. 59). 

 c-d. 2 (Sc. 37 ; V. 233 ; 



0. 58) & hgr. (Sc. 37 ; 



V.244; 0.55). 

 e. 2 (Sc. 87; V. 244; 



0. 60). 



Duke of York Island. Eev. G. Brown [0.]. 



San Christoval. Museum of Econo- 



mic Geology. 

 Santa Anna Island, H. B. Guppy, Esq. 

 Solomons. [P.]. 



Loyalty Islands. 



Sir G. Grey [P.]. 



