CAXARIAN GROUP. 461 



reality to be but a phasis (more apically acute, and with the 

 spire relatively more elongated) of the lanzarotensis. Or it- 

 might possibly be that the ' a.' is truly and separately distinct, 

 and that what I have treated as the ' var. /3. tumidula ' may be 

 only an obese and shortened form of the attenuata (with which 

 it is found in company) ; though if this latter supposition be 

 correct (which I think is hardly likely), Mousson was mistaken 

 in recording his Cionella lanzarotensis as having occurred on 

 the submaritime cliffs overlooking the Salinas, — the mountains 

 above Haria being, in that case, its sole habitat as hitherto 

 ascertained. 



Lovea attenuata. 



Cionella attenuata, Mouss., Faun. Mai. des Can. 134. pi. 6. 



f. 32, 33 (1872) 

 Ferussacia attenuata, Pfeiff., Mon. Hel. viii. 306 (1877) 



Habitat Lanzarotam ; ad rapes editiores maritimas, sub 

 lapidibus degens. 



Although relatively a little narrower and more tapering in 

 outline, with usually an extra volution, and with the ultimate 

 and penultimate ones rather less elongated (in proportion to the 

 size of the shell), I am nevertheless far from certain that the 

 present Lovea is truly distinct specifically from what I have 

 regarded as the ' var. /3. tumidula ' of the lanzarotensis ; and 

 this is all the more possible, because I undoubtedly possess 

 many examples which are more or less intermediate between the 

 latter and the attenuata, and because also the Loveas are 

 eminently liable (like some of the Clausilias and Pupa}) to have 

 a state which is more or less shortened and obese, and another 

 which is comparatively elongated and acute. Added to which, 

 the L. attenuata and what I have cited as a ' var. /3.' of the 

 lanzarotensis are found in company (for the most part in about 

 equal proportions), — having been met with hitherto, so far as I 

 am aware, only on the lofty submaritime cliffs (known as the 

 Risco, aDd overlooking the Salinas) in the extreme north of 

 Lanzarote. 



Nevertheless, whether my surmises concerning the four 

 phases now before me (two of which I have assigned to the lanza- 

 rotensis, and two to the attenuata) are correct or not, I will 

 not attempt to amalgamate the two species which Mousson 

 has established ; for whatever be the fate of my ' var. /3. 

 tumidula ' (that is to say, whether it be a variety of the 

 lanzarotensis, as I have assumed, or of the attenuata, which is 

 perhaps equally possible), there is at least a reasonable chance 

 that two veritable species are indicated, — in which case it 



