344 TEST ACE A ATLANTIC A. 



scooped-out so as to form an obtuse ridge-like tooth ; but I will 

 merely remark that this latter feature is so eminently incon- 

 stant that it is scarcely possible to find two individuals of the 

 H. Saulcyi which are precisely similar as regards the develop- 

 ment of their peristome and aperture. Nevertheless I will at 

 all events register this particular phasis of the shell, which 

 passes into the other by the finest possible gradations, as the 

 * var. /3. temperata.' 



Helix Pateliana. 



Helix Paeteliana, ShuttL, in litt. 



Pfei/>, Mai. Bldtt. vi. 26 (1859) 

 Id., Mon. Hel v. 299 (1868) 



Mouss., Faun. Mai. des Can. 88. pi. v. 



f. 7 (1872) 

 Pa'teliana, Pfeif., Mon. Hel. vii. 346 (1876) 



Habitat Fuerteventuram (sec. Pfeiff.) ; ex exemplare unico, 

 in Mus. Cumingiano, descripta. 



I know nothing of this Helix except what may be gathered 

 from Pfeiffer's diagnosis, which was drawn out from a unique 

 example, said to have been taken in Fuerteventura, in the collec- 

 tion of the late Mr. Cuming. Mousson assigns to it, in doubt, 

 a specimen which was obtained in that same island by Fritsch, 

 but which he nevertheless says does not quite accord with the 

 published description. A single individual, now before me, 

 which was received by the Baron Paiva from M. Berthelot, and 

 which is stated (though I do not think that this can be depended 

 upon) to be Fuerteventuran, very much resembles the figure 

 which is given by Mousson ; though my own belief is that it 

 represents nothing more, in reality, than a rather enlarged and 

 elongated phasis of the H. Pouchet in which the striae and 

 granulations are somewhat less developed, and that in all pro- 

 bability it was met with in some district of Teneriffe, and not 

 in ' Fuerteventura ' at all. Hence I do not think that my own 

 specimen, at any rate, although differing a little from the ordi- 

 nary Pouchet-tjpe, can be trusted, either as embodying the H. 

 Pateliana or as having for certain been met with in the par- 

 ticular island from whence it is reported to have been brought. 



Helix Pouchet. 



Le Pouchet, Adans., Hist, du Seneg. 10. t. 1. f. 2 (1757) 

 Helix Pouchet, Per., Tabl. 32 (1821) 



Adansoni, W. et #., Ann. des Sc. Nat. 28. syn. 313 

 (1833) 



Pouchet, dOrb., in W. et B. Hist. 56 (1839) 



