126 



oblonga, intus alba ; labii externi denticulis internis paucis, 

 distantibus. 



Shell oblong, thick, smooth, whitish, with longitudinal 

 chesnut coloured flexuous lines ; spire acuminated, volutions 

 7, furnished with a single row of small tubercles ; aperture 

 oblong-ovate, white within, internal teeth of the outer lip few 

 and distant. 



Kiener's French description and his figure do not agree, but 

 his figure accords with the character given by Lamarck, who 

 does not mention any tubercles, nevertheless, the only speci- 

 men we have seen, and which was obtained by Mr. Cuming, 

 from Lamarck's collection," possesses these tubercles, and in 

 other respects accords with Lamarck's character: we judge from 

 these circumstances, that there are two varieties, one with 

 tubercles, and the other without. 



42. Col. Terpsichore, Leathes. (pi. xxxviii, f. 98, 99.) 

 Col. testa oblonga, crassiuscvda, costellata, albican te, maculis 



strigilisque fuscis concinne ornata, spira pyramidali, sub- acu- 

 minata, apice obtusiusculo ; anfractibus 6, laevibus, primis 

 longitudinaliter costellatis, ultimo primum costellato, deinde 

 leevigato, postice tuberculis parvis instructo, ad basin spira- 

 liter tenuiter sulcato ; apertura latiusula, labio externo intus 

 tantum denticulato, (nullo modo tumido) rugis ad basin colu- 

 mellas parvis. 



Shell oblong, thickish, with little ribs, whitish with little 

 specks and streaks of fuscous ; spire pyramidal sub-acumi- 

 nated, its apex rather obtuse : volutions 6, smooth, the first 

 longitudinally costellated, the last costeUated at its commence- 

 ment, then smooth and furnished posteriorly with small tuber- 

 cles, slightly traTisversely grooved in front ; aperture rather 

 broad, outer lip only denticulated, (not tumid) within; rugosities 

 at the base of the columella small. 



From Nevis, W. Indies, H. Cuming. 



43. Col. Boivinii, Kiener. (pi. xxxviii, f. 100.) 



Col. testa ovata, crassa, laevi, nigra, albo-guttata ; apice 

 acuminato, anfractibus 6 — 7) brevibus, tribus ultimis postice 

 tuberculatis ; ultimi magni parte ventrali nonnunquam rugis 

 nonnullis instructo ; apertura latiuscula, postice angulata, intus 

 alba ; margine interno labii externi fusco, denticulato. 



Shell ovate, thick, smooth, black, dotted with white ; apex 

 acuminated, volutions 6 — 7 > short, the three last posteriorly 

 tuberculated ; the ventral p art of the last, which is large, is 

 sometimes furnished with a few wrinkles; aperture rather 



