L<i 11(1- Shells from Xeiv Guinea. 2.'}.'] 



7. Ili'h'x {Chloritis) perambigua. 



Testa //. epliaiiiilltr similLs, scd cpidorraido lacvi, hand sctosa amicta, 

 Bpira paulo altiorc, anfractu ultimo minus inflate, peristomato 

 minus expaiiso. 



Diam. maj. 32 millim., miii. 25, alt. 2.'i ; apertura intus 12 alta, 

 15 lata. 



There are two specimens of this species, agreeltii^ in form 

 and epidermis, but differing in size and colour. The larger 

 one, the dimensions of which are given above, is purplish red 

 at the apex, like II. ephamilla, the rest of the shell being 

 livid beneath the epidermis. The smaller example is only 

 22 millim. in its greatest diameter and of a purplish red 

 throughout. The epidermis, however, is quite smooth, with 

 the exception of the lines of growth, as in the larger specimen. 

 The aperture in the latter is bluish, and purplish red in the 

 small example. 



Tlie general resemblance of this species to //. ephamilla is 

 80 remarkable that, unless carefully observed, its distinctness 

 would be passed by unnoticed. It seems to me, however, 

 that the differences referred to sufficiently separate the two 

 forms. 



8. Helix [Cristigibhd) Musgravei. 



Testa //. seviirascp similis, sed minor, fascia angusta unica nigres- 

 cento supra oi-nata, snperficie minute et confertim punctata ; 

 peristomate albido. 



Diam. maj. 14 millim., min. 12, alt. 64. 



Ilab. Back of Cloudy Bay. 



This species, //. semirasa, and //. leptochila are closely 

 related. H. semirasa resembles the present species in form, 

 but differs in size, scul})ture, banding, and colour of the peri- 

 stome. //. leptochila, Canefri, from the Molucca Islands, is 

 larger, has a broader colour-band above, a rosy peristome, 

 and, judging by the figure, is of a different form. In this 

 species the pitting of the surface (indication of a pilose epi- 

 dermis) is very minute and close, but in //. semirasa it is 

 comparatively scattered and remote. No mention is made by 

 Canefri of this kind of sculpture upon //. leptochila ; but, 

 being difficult of observation, it may have been overlooked. 



