238 Geological Society. 



A single adult male from the Comoro Islands, 6^ inches 

 long, of which the tail takes 3^ inches. 



Rhamplioleon Kerstenii. 



Chamceleo Kerstenii, Peters in Von der Decken's Reisen, iii. p. 12, Taf. 1. 

 fitf. 1. 



This is a second species of the genus Rhamplioleon , each 

 claw being provided with the characteristic accessory sharp 

 denticle; but the spine which vertically projects from the 

 flexor side of the toes in R. spectrum is absent in the present 

 species. 



One specimen from Mpwapwa is 3| inches long, the tail 

 measuring 1£ inch. 



Dipsas betsileana. 



Scales in 23 series, those of the vertebral series scarcely 

 enlarged. Head very short and broad ; eye very large. 

 The loreal enters the orbit below the single prseorbital ; two 

 postorbitals ; seven upper labials. Black, with about thirty- 

 four narrow yellow cross bands on the trunk ; tail similarly 

 coloured. Snout with an irregular yellow band across the 

 frontals. 



One specimen, 15| inches long, from S.E. Betsileo, Mada- 

 gascar. 



PROCEEDINGS OF LEARNED SOCIETIES. 



GEOLOGICAL SOCIETY. 



May 12, 1880.— Robert Etheridge, Esq., E.R S., 

 President, in the Chair. 



The following communications were read : — 



1. "On the Structure and Affinities of the Genus Protospongia, 

 Salter." By W. J. Sollas, Esq., M.A., E.G.S. 



In this paper the author described the character of the Cambrian 

 genus Protospongia from the original and other specimens. In Dr. 

 Hicks's specimen the spicules of the sponge show their original 



