FERUSSACIA, SECTION PEGEA. 239 



(1833). Bulimus v.-, OBBIGNY Hist. Canaries, Moll., p. 72, 

 pi. 2, f. 28. PFR., Monogr. iv, p. 455. Cionella v., MOUSSON, 

 Rev. fauna Mai. Canaries p. 131. Ferussacia v., PFR., 

 Monogr. vi, p. 250; viii, p. 303. Loved v., WOLLASTON Test. 

 Atlant. p. 462. 



"The straightened, rather cylindric-obloag outline of this 

 comparatively small, very highly polished, pellucid, and pale 

 greenish-yellow, or olivaceo-corneous Lovea (which measures 

 f rom about 3 to 31/2 lines in length) , added to the thinness of 

 its substance, the excessive obliquity of its suture, its enlarged 

 and slightly tumid penultimate volution, its acute, unthick- 

 ened peristome, and its somewhat short 'and posteriorly 

 rounded (or unangulate) aperture, will sufficiently distin- 

 guish it" (Wollaston) . 



' * The specimens of this Lovea from Lanzarote, which must 

 be looked upon as the normal ones, are a trifle smaller and 

 narrower, and perhaps -a little more cylindrical (or less ovate) 

 than those from Fuerteventura ; and their columella is, on the 

 average, somewhat less truncated behind, or more gradually 

 and imperceptibly rounded off into the hinder margin of the 

 peristome; but the latter character is so unmistakably vari- 

 able in both forms that I would merely register the Fuerte- 

 venturan individuals as representing a 'var. B. submajor,' dis- 

 tinctive of that particular island." (Wollast.) 



The description and figs. 45, 46 are drawn from a specimen 

 from the Wollaston collection, taken at Fuerteventura. 



Section Pegea Risso. 



Pegea Risso, Hist. Nat. Eur. Merid. iv, p. 88, for P. carnea 

 Risso. Pseudazeca PFR., Monographia Hel. Viv. viii, 1877, 

 p. 299, for Ferussacia procerula, eremiophila f lamellifera, 

 sciaphila gradient a. Proceruliana BGT., Rev. et Mag. de 

 Zoologie 1864, p. 201; Malacologie de TAlgerie ii, p. 24, for 

 F. procerula etc. Phylacus WESTERLUND, Fauna etc. iii, 1887, 

 p. 154, for F. splendens, obesa, lamellata. "Stobilus An- 

 ton," H. & A. ADAMS, in part, Genera of Recent Mollusca ii, 

 p. 106, for achatinoides Pfr., cubensis PFR., cylichna Lwe., 

 fraseri Bs., lamellifera Morel., leacociana Lwe., ovuliformis 

 e. (Jan. 1855). Not Strobilus Anton. 



