Ichiiofropt!?. 181 



B. Two superposed anterior loreals ; iij^per head-shields 

 strongly striated ; frontonasal not broader than long. 



I. chapini, Schmidt, p. 190. 

 II. Frontonasal longitudinally divided ; subocular not bordering 

 the mouth ; occipital usually absent ; 46 to 58 scales and 

 plates round middle of body ; 13 to 16 femoral pores on 

 each side . . . . . . . /. sq\iamulosa, Peters, p. 191. 



1. ICHNOTROPIS TANGANICANA. 



Ichnotrnpis fatHjaiiicana, Bouleng. Ami. & Mat;-. N. H. (8) xix, 

 1917, p. -278. 



Head and body feebly depi'essed. Head H times as long as broad, 

 its depth equal to the distance between the centre of the eye and the 

 tympaninn,its length 34 times in length to vent; snout obtusely pointed, 

 as long as the postocular part of the head, with rather strong canthus 

 and feebly concave loreal region ; a feeble concavity on the upper 

 surface of the snout and the anterior half of the frontal ; a feeble keel 

 below the eye. Pileus 2^ times as long as broad. Neck narrower 

 than the head. The hind limb reaches a little beyond the shoulder ; 

 foot a little longer than the head ; digits feebly compressed. 



Upper head-shields rather feebly striated ; nostril between three 

 shields ; nasals forming a suture behind the rostral ; frontonasal as 

 long as bi'oad ; prefrontals longer than broad, in contact with the 

 second supraocular ; frontal as long as its distance from the rostral, 

 nearly twice as long as broad, a little narrower behind than in front ; 

 parietals longer than broad, rounded behind, in contact with the third 

 supraocular ; interparietal a little larger than the frontoparietals, 

 in contact with a small and rather irregular occipital, which projects 

 beyond the parietals. 4 supraoculars, first and fourth small ; 4 

 superciliaries, first longest and forming a very oblique suture with 

 the second, its inner l)order entirely in contact with the first and 

 second supraoculars ; fourth superciliary in contact with the third 

 and fourth supraoculars ; 3 or 4 small granules between the second 

 and third superciliaries and the supraoculars. Lower nasal narrowly 

 in contact with the rostral ; anterior loreal shorter than the second ; 

 4 upper labials anterior to the subocular, which is a little narrower 

 beneath than above and broadly borders the mouth. A large upper 

 temporal, forming a suture with the fourth supraocular ; temporal 

 scales rather large, hexagonal, feebly keeled ; a narrow tympanic 

 shield. Lower eyelid with a series of vertically enlarged scales in the 

 middle. 



5 pairs of chin-sliields, the 3 anterior in contact in the middle ; 



