AZOREAN GROUP. 45 



is certainly a wide one — at any rate for a species which is mani- 

 festly aboriginal and which has no appearance of having been 

 naturalized. It is smaller and rather more conical (or less 

 strictly frarre^-shaped) than the P. tessellata ; and its pale 

 corneous surface (which is minutely striated and somewhat 

 shining) is almost entirely darkened or concealed (except 

 beneath, or at the base of the shell) by a fuscous band which 

 more or less covers the whorls. The aperture is relatively a 

 little smaller than in the P. tessellata, and not quite so 

 posteriorly-prominent, or downwardly-produced ; and it is 

 armed internally with five plaits, — two of which are ventral 

 (the outer one being the larger and more salient, and connected 

 by a corneous sphincter with the angle of the lip), one columel- 

 lary, and two (which are more immersed or remote) palatial. 



Although unmistakeably allied to several Madeiran species 

 of the laurinea and condnna type, I think nevertheless 

 (judging from the diagnosis and figure) that the present Pupa 

 has still more in common with the P. castanea of the Canarian 

 archipelago, and (perhaps more particularly) with the P. 

 pythiella. 



Pupa fasciolata. 



Pupa fasciolata, Morel., Hist. Nat. des Acor. 193. t. 5. f. 2 



(1860) 

 „ „ Drouet, Faun. Acor. 165 (1861) 



Habitat ins. omnes (sec. Morelet et Drouet) ; sub lapidibus 

 et inter folia emortua, una cum specie prgecedenti, vulgaris. 



Judging from the diagnosis and the very excellent figure 

 which is given by Morelet, this seems to be a more ovate and 

 ventricose little Pupa than the fusciclula, as well as thinner 

 and more pellucid, and less broadly clouded with a dark-brown 

 or castaneous fascia, — the latter (at all events as represented in 

 the plate) being reduced to a somewhat narrower and better- 

 defined band. Its aperture would appear to have only a single 

 very distinct plica, — namely, in the usual place, on the ventral 

 wall, at a short distance from the angle of the lip ; nevertheless 

 there are manifest indications of another, on the columella, — 

 which however is deeply immersed, and by no means con- 

 spicuous. 



The P. fasciolata is reported both by Morelet and Drouet 

 as existing on every one of the Azorean islands ('dans toutes 

 les iles de i'archipel'); and it supplies, therefore, another 

 instance of the extreme diligence of those two explorers, — who, 

 during a single visit extending over a period of but five months, 

 succeeded in obtaining no less than one-third of their Grastro- 



