192 



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DESCRIPTIONS OF THREE NEW PAPUAN SNAKES. 

 By J. Douglas Ogilby. 



Hypaspistes, (/en. nor. 



Body very much elongated and compressed; tail of moderate length, 

 rounded, or but slightly compressed anteriorly, prehensile. Head 

 quadrangular, completely shielded, distinct, but not markedly so, 

 from the neck. Snout rather short. Eye of moderate size, the 

 pupil eliptical. Nostril lateral, pierced in a single nasal which is 

 grooved behind. Shields regular, the occipitals increased in 

 number to three pairs ; loreal present. Scales smooth, quadri- 

 lateral, the vertebral series not dilated. 



Hypaspistes dipsadides, sp. nov. 



Scales on the body anteriorly in thirty, posteriorly in twenty- 

 three series ; the series bordering the abdominal plates much the 

 largest ; abdominal plates three hundred and twenty-seven ; anal 

 plate single ; sub-caudal plates in two rows of one hundred and 

 seventeen each, preceded by a semicircular band of eleven small 

 scales. Head very distinct from neck. Muzzle of moderate 

 length, broad, very obtuse, and rather depressed ; the occiput 

 rounded. Eye lateral, the outer skin rather opaque, the pupil 

 elliptical and erect. Body slender in front, becoming much 

 higher behind. Skin of the throat loose, forming a distinct 



