CANADIAN GROUP. 443 



sublacerata ; apertura parvula, peristomate sordide albo, anguste 

 expanse, obtuse incrassato, marginibus convergeritibus et ssepius 

 (nee semper) callo sublineari (in medio obsolete, sed ad inser- 

 tionem dextram in tuberculum, ab angulo incise subdisjunctum, 

 aucto) junctis, dextro versum angulum superiorem et (rarius) 

 etiam columellari mox ante insertionem magis incrassatis. Long, 

 lin. 9-11 ; diam. maj. vix 5. 



Bulimus Consecoanus, Fritsch, in Hit. 



Buliminus Consecoanus, Mouss., Faun. Mai. des Can. 118. 



pi. 6. f. 12, 13 (1872) 

 Bulimus Consecoanus, Pfeiff., Mon. Hel. viii. 85 (1876) 



Habitat Gromeram ; et recens et semifossilis, versus occiden- 

 tem insulse, hinc inde vulgaris. 



This fine species, which seems to be peculiar to Gromera, is 

 (on the average) the largest of all the Bulimi which have been 

 found hitherto in the Canarian archipelago ; though the (more 

 cylindrical) B. Bertheloti very nearly equals it in length. It 

 was taken in profusion by Mr. Lowe, both in a dead (although 

 recent) and subfossilized state, near Hermigua ; and it was met 

 with (according to Mousson), at Mancha Yerba, by Fritsch. 



Independently of its large size, solid substance, elongate- 

 ovate outline, and conical, apically acute spire, the B. Conse- 

 coanus may be distinguished by its numerous and rather flattened 

 volutions, and by its relatively somewhat small aperture, the 

 peristome of which is only narrowly expanded, but nevertheless 

 thick, rim-like, and obtuse, with the upper and lower margins 

 usually joined by an intervening callosity which is more or less 

 obsolete in the centre, but raised at the right-hand insertion 

 into an elongated tubercle which is partially separated by a 

 gash from the angle itself. Its umbilical chink is well-nigh 

 closed-up ; its surface is opake, rather pale, and of either a yel- 

 lowish- or a corneous-brown (often with a faint plumbeous, or 

 even purplish, tinge), but more or less obscurely variegated with 

 very irregular, subconfluent whitish dashes and lines ; and its 

 sculpture is a little peculiar, the oblique costate striae (which 

 are sometimes tolerably sharp, close, and regular, and at others 

 obtuse and fold-like) being here and there broken-up, particu- 

 larly on the intermediate whorls, into unequal and confused 

 punctures and granules. 



The B. Consecoanus belongs to the same group as the Me- 

 diterranean B. pupa. Linn., which is found more particularly in 

 Sicily and Greece ; but, as contrasted with that species, it is 

 comparatively gigantic, its whorls are more numerous, its out- 

 line is less cylindric (the spire being more regularly conical and 

 apically-acute), the right-hand margin of its peristome is more 



