AZOREAN GROUP. 47 



(or less short and ventricose), and with its surface a little more 

 roughened, though its costse (which are slightly more numerous 

 and regular) are nevertheless not quite so coarse. Its aperture, 

 too, is relatively a trifle smaller, and (according to the diagnosis) 

 is provided with only three plaits, — two of which are ventral 

 (the outer, or larger, one being connected with the angle of the 

 lip by a corneous sphincter), and the third one on the middle of 

 the columella. In the figure., however, there would seem to be 

 indications of a fourth one, on the palate ; but this perhaps 

 may be merely accidental. 



The P. ruf/idosa is apparently unique, — the single example 

 which served Morelet as a type having been found by Drouet in 

 a garden, in company with the H. paupercula, Lowe, on the 

 western coast of Pico. 



Pupa vermiculosa. 



Pupa vermiculosa. Morel., Hist. Nat. des Agor. 201. t. 5. 

 f. 4 (1860) 

 „ „ Drouet, Faun. Agor. 166 (1861) 



Habitat S. Miguel ; in montibus juxta lacum ad Las Furnas 

 parce lecta. 



As already implied, the present Pupa is a trifle smaller 

 and more ovate than the P. rugulosa, and its costse are rather 

 wider apart, — at any rate on the ultimate and penultimate 

 whorls, where they have also a slight tendency to be flexuose or 

 vermiform. Its aperture is said to be armed internally with 

 foiu- plaits (instead of only three) ; but the fourth one cannot 

 be very conspicuous or well defined, seeing that a cUfferent 

 situatio7i is assigned to it by Morelet and Drouet, — the former 

 citing it as (small and ' punctiform ') on the ventral wall, to 

 the left of the usual large and prominent one ; whilst Drouet 

 speaks of it as on the ' bord externe ' (or palate), in which case 

 (according to him) there is only ' 1 sur la parol superieure,' 

 i.e. on the ventral paries. I doubt, therefore, if the aperture 

 can be regarded strictly as more than 3-plicate. 



The P. verraicidosa was met with in fS. Miguel, at the base 

 of the mountains which adjoin the southern border of the lake 

 in the valley of the Fm-nas. 



(§ StaurodoH, Lowe.) 



Pupa pygmsea. 



Pupa pygmsea, Drap., Tahl. d. Moll. 57 (1801) 

 Vertigo pygmaea, Gray, Man. 201. t. 7. f. 83 (1840) 

 Pupa pygmsea, Pfeiff., Mon. Hel. ii. 362 (1848) 

 „ „ Morel., Hist. Nat. des Acor. 206 (1860) 



„ „ Drouet, Faun. Agor. 167 (1861) 



