42 REPTILES. 



a. In spirits. Adult, India. Old collection. 



" Hydrus bicolor, Shaw." 



b. In spirits. Adult. Indian Seas. From Mr. Leadbeater s col- 



lection. 



c. In spirits ; bleaclied, in a bad state. ? Presented by 



the College of Surgeons. 



d. In spirits. Adult. Tail with some round spots. New Zealand. 



From Mr. Argent's collection. 



e. In spirits. Adult. Borneo. Presented by Capt. Sir Edward 



Belcher, K.C.B., R.N. 



Var. 1 . Like fonner, but posterior ocular two squares ; lower 

 ocular triangular, moderate. 



f — A. In spirits. Adult. Madagascar? Presented by Capt. Sir 

 Edward Belcher, K.C.B., R.N. 



I. In spirits. Young ; bleached. Infraoculav forming part of the 

 lip-shields. 



/. In spirits. Young. Lower ocular like d. From the Museum 

 of the Royal College of Surgeons. 



/'. In spirits. Half grown. Supraocular on one side deficient, 

 ? From the Museum of the Royal College of Sur- 

 geons. 



/. In spirits. Young. Lower ocular divided into two scales. 

 Madras. Presented by J. C. Jerdon, Esq. 



Var. 2. Like fonner, but black dorsal streak narrower, some- 

 times only as wide as six or eight rows of scales, interrupted into 

 spot behind ; vent yellow, rarely black-edged ; tail slightly black 

 varied. 



m. In spirits. ? Presented by Capt. Sir Edward Belcher, 



K.C.B., R.N. 



Var. 3. Like fomier ; tail nearly black, only white above the 

 lower edge, and with four or five narrow white cross bands. 



n. In spirits. Young. India. Presented by General Hardwicke. 



Var. 4. Like fonner ; the lower edge of the hinder part of the 

 black dorsal band sinuous ; belly with two round spots in front of 

 vent ; tail ^ith large, roundish black spots ; one anterior and two 

 posterior oculars. Russell, Ind. Serp. ii. ^41. Pelamis bicolor, 

 Daud. Bept. vi. t. 89. 



o. In spirits. Adult. Pacific Ocean. 



