40 OPHIDIANS. 
East India species are as follows, viz.: 
No.1. A. amblycephalus, 1 variety. 
2. A. pareas, 3 varieties. 
4 
Making 2 species, composed of 4 varieties; none other 
than these have as yet been classified. 
FIFTEENTH GENUS—PYTHONIDZ. 
Rock Snakes. 
Body cylindrical, flexible; interior maxillary teeth unequal in length ; 
none of the hinder teeth enlarged; rudiments of hind limbs present; 
tail prehensile. 
Several species occur in East India, viz.: 
No. 1. P. Python (Daud). 2 varieties. 
2. P. Natalensis (Port Natal Rock Snake) is said to at- 
tain a length of twenty-five feet. This is an Afri- 
can species. 
3. P. aboma (nobis). Aboma, or Ringed Boa of Mexico, 
was formerly worshipped by the natives on account 
of its destructive powers. 
4, P. morelia spilotes (Diamond Snake) is a handsome 
variety. 
P. morelia variegata (Carpet Snake) is closely allied to 
the preceding. These are varieties found in Aus- 
tralia. 
5. P. molurus (Common Rock Snake) has a spur on either 
side of the anus. This is an East Indian variety. 
. P. aspidiotes melanocephalus (Black-headed Snake). 
7. P. liasis childrenit (Children’s Rock Snake). 
P. liasis olivacea (Olive-green Rock Snake). 
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