OPHIDES. ANGUID^. 



367 



Python. General characters of Boa, but the head is 

 more or less covered with small plates in front : Tro- 

 pical India. 



Cenchrus Gray. Head obliquely cut behind ; front 

 truncate and covered with small plates, those beneath 

 the tail simple. 



C. regia. (Boa regia ^wcf. ) 



Python Daud. Characters as above ; but with the sub- 

 caudal plates double. 



reticulata Sch. Peronii Cuv. 



Javanicus. Seba, pi. 62. punctatus Merr. 



GongylopMs Wag. Scales of the head and back simi- 

 lar and carinated. 



B. ornata Daud. Russ. Serp. pi. 4. 



Erix Daud. Tail very short and obtuse; head short, 

 not distinct from the body, and covered only with 

 small scales ; anal spines wanting. 



Family 4. ANGUID^. Slow-worms. 



The entire head and body covered with smooth imbri- 

 cate scales ; head osseous ; bones of the shoulder and of 

 the pelvis generally existing in a rudimentary state 

 under the skin. 



PsEUDOPUs Merr. A prominent tubercle on each side 

 of the anus, in which is a small bone analogous to 

 the femur, and representing the hind legs ; scales 

 square, thick, and semi-imbricate. 

 P. Pallasii Cuv. 



Ophisaurus Daud. Resembling the last, but with no 

 external representations af the hind legs ; a ridge, as 

 in the last, shows the situation of the fore feet of 

 Seps. 



O. ventralis. Catesby, ii. pi. 59. 



Anguis Linn. Body entirely smooth, and surrounded 

 with imbricate scales ; tympanum concealed beneath 

 the skin, as also the rudiments of the pelvis, sternum, 

 clavicle, and omoplate. 



