llAKli; REPTILES FllOM SOUTH AMERICA. 



10C5 



A M P H I S B yE N 1 D yE. 



19. CoPIlIAS FLAVESCENS Bonil. 



One adult female of this extremely rare species. It agrees in 

 every particular with the specimens already in the British 

 Museum, and with the description in the Catalogue of Lizards, 

 vol. iii. p. 4.18. 



20. AMPniSBiENA ALBA L. 



21. Ampiiisbvena Mri'OiiELLi, sp. n. 

 Habit as in A. veronicularis. 



Snout obtusely pointed, rather pronnnent. Rostral small, as 

 deep ns broad, scjvrcely visible from above ; nni^als large, forming 

 a, suture behind the rostral, whicli is slightly longer than the one 

 between the prjcfrontals ; frontal suture longer than the pre- 

 frontal suture ; two pairs of small parietals. Eye distinct 

 through the ocular ; no prreocular ; postocular large, pentagonal ; 

 a single triangular anterior temporal ; three large and one small 

 upper labial on each side, third in contact with ocular and post- 

 ocular. Hyniphysial tetragonal followed by a, large heptagonal 

 median chin-shield ; two lai^ge posterioi- chin-shields in contact 



Text-figure 2.. 



Amphishcona mitclielU, sp. u. 



Head: a. dorsal view ; b. ventral view ; c, lateral view. 



il. Anal region : ventral view. 



with second and third sublahials, separated from each other by 

 4 small shields. Body slender, composed of 213 annuli ; 14 

 segments above and 14 below the lateral grooves, which are well- 

 defined. Each segment above about twice as long as broad ; 

 median ventrals twice as broad as long; a vertebral groove. 

 Tail composed of 30 annuli. Anal 4 segments wide, the two 

 median enlarged ; 2 prseanal pores. 



Upper surface a soft brown, each segment light-edged. Snout 

 and lower surfaces ecru. . .^ , , ,^ c 



Described from a single adult from Marajo Island, mouth of 

 the Amazon. 



