CAN AM AN GROUP. 459 



are one and the same species, — representing but slight, and 

 unimportant, indeed barely distinguishable, aspects of a single 

 type. 



Lovea valida. 



Cionella valida, Mouss., Faun. Mai. des Can. 130. pi. 6. f. 



24, 25 (1872) 

 Ferussacia valida, Pfeiff., Mori. Hel. viii. 304 (1877) 



Habitat Fuerteventuram ; ad Yandia, in meridionali insulse, 

 a D. Fritsch detecta. 



I have not been able to procure a type of this Lovea, which 

 was detected by Fritsch in the district of Yandia in the south 

 of Fuerteventura ; but it appears to be a large and solid species, 

 measuring 7 lines in length, of a pale corneous hue, and very 

 lightly striated. It is compared by Mousson with the Webbii 

 d'Orb. ; but I have already mentioned (vide, ante, p. 422) that 

 the latter is not a Lovea at all, but a Bulimus, — as indeed it 

 was originally reported by Webb, and subsequently by d'Orbigny 

 himself, as well as by Pfeiffer, — it being, in fact, neither more 

 nor less than B. myosotis of Grand Canary. Judging from the 

 diagnosis, the L. valida is probably more allied to the (never- 

 theless considerably smaller) L. lanzarotensis, Mouss., than to 

 anything else. 



Lovea Fritschi. 



Cionella Fritschi, Mouss., Faun. Mai. des Can. 131. pi. 6. 



f. 30, 31 (1872) 

 Ferussacia Fritschi, Pfeiff., Mon. Hel. viii. 304 (1877) 



Habitat Lanzarotam ; sub lapidibus in editioribus, rarissima. 



A single example of a Lovea which is now before me, and 

 which I met with in the north of Lanzarote, I have no doubt is 

 referable to Mousson's Cionella Fritschi, which was taken by 

 Fritsch in that same island. It is 5 lines in length (thus 

 agreeing exactly with the measurement given by Mousson), 

 and rather broader and more ovate in outline (or ventricose) 

 than the L. lanzarotensis (even as represented by the ' var. ft. 

 tumidula'). In colour it is pale livid, or olivaceo-corneous ; 

 its surface is very minutely and obsoletely striated ; its suture 

 (although equally margined) is planer, or less (even obsoletely) 

 impressed, than in that species ; its penultimate whorl is 

 relatively a little shorter and less inflated ; and its aperture is 

 rather more angulate at the junction of the columella with the 

 lower margin of the peristome. 



