Tchiutropk. 181 



B. 'I'wci supoi'iJost'il antoi'ior loreals ; upper lieait-shields 

 stronjjly striatetl ; frontonasal not In-oader than loni?. 



I. chapini, Schmidt, p. 190. 

 II. Frontonasal long-itudinally divided ; snbocular not bordering 

 tlie movith ; occipital usually absent ; 46 to 5S scales and 

 plates round middle of body; 13 to 10 femoral pores on 

 each side I. squamidosa, Peters, p. 191. 



1. TCHNOTEOPIS TANGANICANA. 



Ichnotropin famjdiiicana, Bouleiig. Ann. A Mat;-. N. H. (8) xi.x, 

 1917, p. 278. 



Head and l)ody feebly depressed. Head 1# times as long as broad, 

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

 tympanum, its length 3f 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 2y 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 feeljly compressed. 



Upper liead-shieids rather feebly striated; nostril between three 

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

 long as broad ; 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 Iwrder 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 rosti-al ; 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-shields, the 3 anterior in contact in the middle; 



