Sroptira. 351 



Scapifirii knoxii, BnuleiiL;-. C;il. Liz. iii. p. I(j9 (18S7) ; Wemer, 

 Jen. DeukM'lir. xvi. K»l(), p. :J35. 



Heail and body moderately depressed. Head li to 1| times as long 

 as broad, its leugtli S.j to 4 times iu leuglb to veut in males, 4 to 4i 

 times iu females, its depth equal to the distance between the anterior 

 corner or the centre of the eye and the tympanum ; snout short, obtuse, 

 nasals not or very feebly swollen, as long as tlie postocular pai-t of the 

 head, with n, very distinct lanceolate concavity from the frontonasal 

 shield to the middle or the posterior end of the frontal ; canthus 

 rostralis sharp, loreal region nearly vertical, concave. Pileus Ij to 2 

 times as long as broad. Neck as broad as the head or a little narrower. 

 The hind limb reaches the collar, the ear, or between the ear and the 

 eye in males, the collar or between the collai' and the ear in females ; 

 foot I5 to If times as long as the head; digits feebly compressed. 

 Tail about twice as long as head and body, feebly depressed at the 

 base. 



l^pper liead-shields rather convex, smooth or a little rugose ; nasals 

 forming a short or very short suture behind the rostral ; frontonasal 

 broader than long, sometimes longitudinally bisected*; prefrontals 

 longer than broad, nearly alwa_ys separated from each other by one or 

 two small azygos shields or by 3 forming a triangle, or even 51 ; frontal 

 as long as its distance from the rostral or the end of the snout, 

 \% to 2 times as long as broad, narrow behind; parietals longer thau 

 broad; interparietal as large as the frontopariekil (ir smaller, in 

 contact with a small occipital or separated from it by a small shield. 

 Three supraoculars, sometimes a small fourth, the first usually with 

 one or two small detached shields on the inner side, sometimes broken up 

 into 4- to 9 shields ; a comjjlele or incomplete series of granules between 

 tlie supraoculars and the superciliaries, which are 6 to 8 in number, first 

 longest. Kosli-al 11 times as broad as deep; lower nasal broadly iu 

 contact with the rostral, resting on the first aud second upj)er labials ; 

 anterior loreal as long as deep or deeper than long, J shorter than the 

 second ; subocular strongly keeled below the eye, resting on the 

 5th to 7tli upper labials, § forming a very obtuse augle between 

 the 0th anil 7tli, its autero-inferior border nnich longer thau the 

 postero-inferior. Two elongate, keeled upper temporals, the anterior 



* In 5 out of 2i spociniens examiued. — In 2 out of 15 examined by Werner. 



t 9 specimens with 1, 7 with 2, 4 witli 3, 1 with o, and 3 without. — 1 or 2 in 

 the 15 spociniens examined by Werner. 



X Absent on one side in one specimen from L'.ilvinia. 



§ 4th to (jth in one specimen examined by Werner. — (^n tlie riyht side in one 

 ot the speuimeus in the Paris Museum. 



