20 L. G. ANDERSSON, SOME NEW SPECIES OF SNAKES. 



cimens represent two difFerent colour-varieties of the same 

 species, so very common in this order of the reptiles. In the 

 figured specimen, which is a naale, the ground colour of the 

 upper parts of the body is light brownish grey with four 

 rows of dark spöts on the anterior part of the body, which 

 spöts behind confluent into fine dark stripes. The two me- 

 dian rows of spöts, commencing just behind the occiput, are 

 separated from each other only by the vertebral row of scales 

 and are formed by small roiind to square dark-]3rown spöts, 

 which on the posterior third of the trunk confluent into two 

 stripes, now also touching the vertebral scale-row. On the 

 tall these stripes confluent into a fine median line. The 

 outer row of spöts commences further l)ehind and grows to 

 lines sooner than the median ones. They are separated from 

 each other and from the median ones to the end of the tail. 

 Half of each scale on the sides below this outer row of spöts 

 is light half dark, forming in this way indistinct longitudinal 

 lines. The belly and the lower surface of the tail yellowish 

 white wdth a longitudinal dark bar on the outer end of 

 each ventral, which bars form a very distinct dark brown 

 streak from the throat to the end of the tail. The head 

 above dark brown, sprinkled with very small light döts. 

 Behind the parietals there are two light spöts separated 

 from each other by an angle shaped dark marking. Upper 

 labials white with dark margins. The head below yello- 

 wish white with dark sutures between the lower labials. 

 Behind the angles of the mouth there is a bright white, large 

 spöt, below confluent with the light colour on the throat. 

 The other specimen, which is a female, has a much darker 

 ground colour, which causes that the dark lines and spöts 

 become more indistinct than in the first described specimen, 

 although they exist on the same places in both forms. 

 Even lower parts in this specimen are dark with light mar- 

 gins of the ventrals and light döts bordering the dark bars 

 on the ends of the shields. On the throat the colour becomes 

 lighter, and the whole head is of the same colour as in the 

 light specimen. 



This new species seems to come nearest to Gcodipsns 

 Boulengcri, (Peracca), from which however it is distinguished 

 by the keeled scales, the single loreal, the two prseocu- 

 lars, the colour, and the geografical distribution, G. Bou- 



