202 



loui'edj frequently pale or flesh-coloured, ornamented \nth fuscous, 

 fulvous, or dark red spots and angular streaks ; spire sliort, obtuse, 

 ^itli a papillary gi'anose apex, having the appearance of being trun- 

 cated, volutions 6, the 2 or 3 last generally crowned with thick spines 

 or tubercles, sometimes almost unarmed ; apertm-e oblong, slightly 

 sinuated and acimiinated posteriorly, margin of the outer lip pos- 

 teriorly subangular, sharp beliind the angle, anteriorly rounded, 

 thick ; columella with 4 distinct folds. 



Eeferring to Zoological Jom-nal, vol. ii. p. 31, where JJroderip 

 says, " After a careful examination of a connecting series of speci- 

 mens, I am unable to discover any satisfactory specific distinction 

 either in V.pellis-serjoentis, in V. mitis, or in F. serpentina, Lnm..; nor 

 do I thinlc that any sufficient cause exists for removing them from 

 the situation they formerly occupied as varieties of F. Vespertllio, 

 Linn.," we think we need merely add that our own opinion coincides 

 entirely with his ; we have therefore regarded them aU as varieties 

 of V. Vespertilio, and in order to shew the variations of form to 

 which this species is subject, we have given ten figures representing 

 the principal varieties, thus om' figures 15, 16, 21, 22, represent 

 Lamark^s V. VespcrtUw; our figm-es 17, 20, the F. pellis-serpentls, 

 Lam.; our figures 19, 23, hght and dark coloured specimens of 

 Lamarck^s F. serpentina, and om- figm-e 18 shews liis F. mitis. 



23. VoLUTA A^'GULATA (pi. xlvii. f. 13, 14.), Swaius. ; Y. Du- 

 fresnii, Donovan, Nat. Hep., vol. ii. pi. Ixvii. (1824.) 



Testa oblonga, fusiformi, epidermide vitrea tecta, pallida, lineis 

 ii'regid,aribus castaneis longitudinahter undata; spira breviuscula, 

 acmninata, apice acutiusculo, anfractibus 5 ad 6, duobus vdtimis 

 postice angulatis, pone angulmn planis, ultimo maximo ; apertura 

 oblonga, postice angulata, antice eifusa, paUide aurantiaca; colu- 

 mella triphcata, antice acuta, plica postica obsoletiori. 



Shell oblong, fusiform, covered with a sliining epidermis, of a 

 pale colour, with irregular undulated longitudinal chesnut lines; 

 spire rather short, acuminated, with a rather acute apex ; volutions 

 5 to 6, the two last angular posteriorly, and flat behind the angle, 

 the last very large ; aperture oblong, posteriorly angular, anteriorly 

 efi'use, pale orange coloured ; columella ^^'ith three folds, the ante- 

 rior of wliich is sharp, and the posterior rather obsolete. 



Tliis was pubhshed many years since by S^vainson under the name 

 of ar/r/ulata, but it has lately been repubhshed by Wagner under 

 the appellation of F. nasica : of course Swainson's name has the riglit 

 of priority, though the apex is sometimes extended in a manner so 

 remarkable as fully to justify the latter name. 



