352 COLtTBEID^. 



Scales in 15 rows. Vontrals 153 ; anal entire ; subcaudals about 

 15. Uniform blackish, scales and shields with whitish edge. 



Total length 330 millim. 



Philippine Islands. 



a. 2 (V. 153; C. ?) Philippines. A. Everett, Esq. [C.]. 



(Type.) 



The position of the following genera is doubtful : — 



Amasteidium. 



Cope, Proc. Ac. Philad. 1860, p. 370. 



" Body cylindrical, elongate ; tail moderate, slender. Head 

 distinct, broad, short, tapering rather abruptly. Superior maxillary 

 teeth in a continuous series, the last abruptly the longest, not 

 grooved. Pupil round. Top of head flat, separated on the muzzle 

 from the sides by an angle. Superciliaries prominent. One 

 anterior, two postoculars. Loreal none. Nasals large, one or two, 

 the nostril situated iu the centre of the anterior. Scales on the 

 posterior part of the body slightly keeled. Anal and subcaudal 

 scutellse divided." 



A. VELIFERUM, Cope, I. C, 



" Scales in 17 longitudinal rows, smooth on the anterior half of 

 the body ; posteriorly a few dorsal rows with faint keels, becoming 

 stronger towards the tail, and extending on all the scales near the 

 anal region, where they are tuberculous as iu Aspklura fraehjjprocta. 

 Tail nearly one third the total length. Occipital [= parietal] plates 

 large, almost reaching the labials in front, posteriorly acuminate ; 

 vertical [=frontai] long, acute behind; superciliaries large, promi- 

 nent, broad behind. Postfrontals [ = prsefrontals] small, their 

 anterior outline regularly cu.rved ; prefrontals [ = internasals] 

 small, quadrangular. Rostral nearly rectangular, not appearing on 

 the surface of the head. Postnasal high, its apex visible from above, 

 opposite the suture between the prce- and postfrontals. Superior 

 labials seven, eye resting on third and fourth. Inferior labials 

 nine. Geneials two pair, the anterior shorter. Gastrosteges 127, 

 urosteges 85. Above and below reddish brown, paler in the centres 

 of the gastrosteges. Every fourth scale of the fifth row on each 

 side pale, the adjacent scales on the fourth and sixth rows generally 

 darker. Top of the head much lighter, varied anteriorly ; palest 

 behind the eye and above the labials. The latter are dark with a 

 few light spots." 



Total length 355 millim. ; tail 120. 



Cocuyas de Veraguas, Colombia. 



