143 



longitudinally ribbed ; the interstices smooth ; the last vo- 

 lution transversely striated in front, aperture rather wide, 

 with four small obtuse denticles on the columellar lip. 

 Locality unknown : Mr. Cuming's collection. 



95. Col. nigricans nob. (pi. xl. f. 172.) 



Col. testa oblonga, nigricante, apice acuminato, anfractibus 

 6, longitudinaliter costatis, interstitiis costarum tenuiter 

 transversim striatis ; sutura distincta, crenulata, albicante ; 

 margine labii externi pallido. 



Shell oblong, blackish, apex acuminated, volutions six, 

 longitudinally ribbed, interstices of the ribs slightly trans- 

 versely striated ; suture distinct, crenulated, whitish, edge of 

 the outer lip pale. 



Gallapagos Islands. Mr. Cuming's collection. 



96. Col. Dormitor nob. (pi. xl. f. 173.) 



Col. testa ovato-conoidea, pallescente, spira conica, brevius- 

 cula, anfractibus 6, transversim sulcatis, apertura elongata, 

 margine interno labii externi crenulato. 



Shell ovate-conoidal, of a pale colour, spire conical, rather 

 short ; volutions six, transversely grooved ; aperture elon- 

 gated ; inner edge of the outer lip crenulated. 



St. Vincent's, Rev. L. Guild ing, in Mr. Gray's collection. 



97. Col. Guildingii nob. (pi. xl. f. 175, 176.) 



Col. testa oblongo-pyramidali, pallescente, brunneo-varie- 

 gata, apice acuminato sub-turrito, anfractibus 6 ; longitudi- 

 naliter costatis et transversim striatis ; apertura longiuscula, 

 sinuosa, canali subelongato, extus transversim sulcato. 



Shell oblong, pyramidal, pale, varied with brown, apex 

 acuminated, sub-turreted ; volutions 6, longitudinally ribbed 

 and transversely striated ; aperture rather long, sinuous ; 

 canal somewhat lengthened, outwardly transversely striated. 



Found at St. Vincent's, by the late Rev. Lansdowne 

 Guilding. — In the British Museum. 



98. Col. Broderipii nob. (pi. xl. f. 178, 179.) 



Col. testa oblongo-turrita, laevi, castanea, varie albo- macu- 

 lata et guttata ; anfractibus 5, subventricosis ; apertura ob- 

 longa, latiuscula ; labio externo intus denticulis 2 — 3 obsoletis 

 instructo ; anfractu ultimo antice transversim striato. 



Shell oblong, turreted, smooth, chestnut colour, variously 

 spotted and speckled with white ; volutions 5, rather ventri- 

 cose ; aperture oblong, rather wide ; outer lip with 2 — 3 



