102 



more elevated, having nearly five volutions; it is of a dark colour, 

 with more or less distinct lighter bands, and the same thickish, 

 brown, opake, hydrophanous epidermis as the last : its columella, 

 and the columellar lip, are of a brownish purple. I designate this 

 as Var. /. 



The figure given by De Ferussac represents a rather dwarf vari- 

 ety, of which I have seen a specimen in Mr. Metcalfe's collection. 



Helix (Cochlogena, De F.) ignobilis. Hel. testa suhglohoso- 

 conica, tenuis, albicans, suhhyalina, fasciis duabus castaneis orna- 

 ta; spird subconoided; anfractibus 4^, lavibus, nitidis, subplanu- 

 latis, striis incrementi tenuissimis solum sculptis; suturd distinctd; 

 aperturd subrotundd, inths alba, fasciis duabus conspicuis ; peri- 

 tremate rejlexo, rotundato, albo; columelld rectiusculd continuo. 

 Long. 1-2; lat. 1-2 poll. 

 Hab. ad insulam Romblon, Philippinarum. 



The subconical form of the spire, with very slightly ventricose 

 volutions, distinguish this from all its most nearly-related species. 

 When young it is slightly carinated. The anterior part of the last 

 volution is usually coloured of a pale yellowish tint. 



Helix (Cochlogena, De F.) tenera. Hel. testa subglobosa, 

 tenuis, alba, suBhyalina ; spird subacuminatd, obtusd ; anfractibus 

 A\, leevibus, subventricosis, striis incrementi tenuissimis soliim in- 

 sculptis, ultimo fascid angustd, viridi picto ; suturd distinctd ; 

 aperturd subrotundd, intils alba fascid solitarid subinconspicud ; 

 peritremate tenui, rejlexo, albo ; columelld latiusculd, rectiusculd, 

 albd, extHs antice subangulatd. 

 Long. 1 ; lat. 1 poll. 



Hab. prope Mansalai ad insulam Mindoro, Philippinarum. 

 Var. b. fasciis duabus castaneo-nigris. 



Nearly related to the last {H. ignobilis) : it may be distinguished 

 by being rather smaller, by having its volutions rather more convex, 

 its peritreme thinner, its columella straighter, and Euigular in front 

 externally. A variety occurs with two dark brown, nearly black, 

 bands, the one above and the other below the ordinary green band. 

 The posterior of these is seen nearly up to the apex. 



Helix (Cochlogena, De F.) collodes. Hel. testa subglobosa, 

 tenuivscula, nitida, alba ; epidermide lutescente induta, apice ro- 

 seo ; spird subelatd, obtusd ; anfractibus quinque, ventricosis, 

 ultimo ad basin paululum planulato ; suturd distinctd, antice 

 castaned ; aperturd subrotundd, inttis albd ; peritremate rejlexo, 

 nigricante ; columelld albicante, paululum recurvd. 

 Long. 1-2; lat. 1-2 poll. 

 Hab. ad insulam Tablas, Philippinarum. 



I have named this species collodes, in consequence of the remark- 

 able appearance of the epidermis, like a coat of glue covering all the 

 outer surface except the apex. In form this species is much like 

 H. ignobilis ; its spire is not, however, so much acuminated, and the 



