1/0 REPTILES. 



Scales in twenty-one rows ; anal entire ; black, with forty to 

 sixty narrow yellow (in spirits) white cross bands. 

 a. Adult. Philippine Islands. From Mr. Cuming's Collection. 

 6. Young : bad state. Phihppine Islands. From Mr. Cuming's 



Collection, 

 c. Adult. Borneo. Presented by Sir James Brooke. 

 cL Adult : injured. Borneo. From Mr. Lowe's Collection, 

 e. Adult. Celebes. From the Leyden Museum. 

 /, g. Adult : not good state. Sumatra. Presented by Capt. 



Sir E. Belcher. 

 li. Adult. India. Presented by Gen. Hardwicke. 



All these specimens belong to the variety T. gemmicinctum, 

 D. &B. 



i. Adult. Java? From Mr. Argent's Collection. 



k. Large specimen. East Indies. From the Collection of the 



Zoological Society. 

 I. Adult. East Indies. From Mr. Jamrach's Collection. 



3. DiPSAS BOOPS. 



Body and tail very slender, much compressed ; head volumi- 

 nous, eye very large. Scales in twenty-one rows. Yellowish 

 brown, marbled with purple, with more or less distinct cross 

 bands ; head marbled with brown ; no temple-streak. 



a. Adult. Bengal. Presented by General Hardwicke. 



b. Adult. Bengal. Presented by General Hardwicke. 



Description. — Body and tail very slender, much compressed ; 

 head very voluminous, broad, thick, very distinct from neck, with 

 flat crown, and short, broad, rounded muzzle ; eye very large, so 

 as nearly to suppress the labials. Rostral shield small, not 

 reaching the sm-face of head ; frontals moderate, of equal length, 

 rather convex ; vertical large, spheroid, in one specimen in con- 

 tact with anterior ocular, in the other one not quite extending to 

 it; occipitals moderate, forked, irregularly tapering ; superciliaries 

 nearly triangular, very convex ; one anterior, two posterior oculars ; 

 loreal small, subquadrangular ; suture between the nasals not very 

 distinct ; eight naiTOw upper labials, third, fourth and fifth form- 

 ing the lower edge of orbit, sixth higher than fifth ; chin-shields 

 broad, nearly suppressing the lower labials, except the first pair, 

 which forms a broad suture behind the terminal labial ; two pairs 

 of moderate temporal shields, front pair coming in contact with 

 both oculars. Scales in twenty-one rows, those of the medial 

 series large, six-sided ; anal entire ; ventral plates not keeled. 

 Three posterior maxillary teeth longest, grooved. Above hght 



