234 



Head moderate; eye shorter than its distance from the 

 mouth. Rostral more broad than deep; nasals shorter than 



the frontal, about twice as 

 long as the suture between 

 the praefrontals; frontal 

 much more long than broad, 

 as long as its distance from 

 the rostral or the tip of the 

 snout; one prae- and one 

 or two postoculars; a single 

 large anterior temporal, 

 sometimes reaching the bor- 

 der of the mouth; seven 

 upper labials, third and 

 fourth or third to fifth en- 

 tering the eye; both pairs 

 of chin-shields in contact. 

 Body long; scales imbricate, 

 smooth or with a tubercle 

 or keel, in 32 — 40 rows 

 (27 — 31 anteriorly); ventrals 

 distinct, smooth or with two 

 tubercles, 300 — 354. 



Greenish-yellow above, 

 the scales with black mar- 

 gins, with narrow black 

 bands or annuli; sides and 

 lower parts yellow; head 



Fig. 89. Hydrophis briigmansi Boie. 



yellow; end of tail black. Length of head and body 1680 mm.; 

 tail 120 mm. 



Type-specimen examined in the Leiden Museum. 



Habitat: Borneo! (Muka); Sumba (Taraba Bay!); Celebes 

 (Macassar!); Waigeu!; New Guinea; Indian Ocean!. — Persian 

 Gulf; Penang!; Philippines. 



14. Hydrophis spiralis (Shaw). 



Hydrus spiralis^ Shaw, Zool. Ill 1S02, p. 564, pi. CXXV. 

 Hydrophis spiralis^ Boulenger, Cat. Sn. Ill 1896, p. 273. 



Head moderate; eye shorter than its distance from the 

 mouth. Rostral more broad than deep; praefrontals usually in 



