139 



or black ; epidermis fuscous ; apex of the spire generally 

 eroded, volutions 7? longitudinally ribbed, the ribs of the 

 last volution abbreviated ; aperture contracted in the middle ; 

 outer lip emarginated posteriorly ; inner lip denticulated 

 anteriorly. 



Found under stones in the Gulf of Nocoiyo, H. Cuming. 



83. Col. nivea. nobis, (pi. xxxix. f. 151.) 



Col. testa ovato-pyramidali, crassiuscula, laevi, nivea, apice 

 acuminato, anfractibus 8, primis 6 Isevigatis, penultimo lon- 

 gitudinaliter costellato, ultimo costato, ad partem dorsalem 

 anticana laevi ; apertura sub-angusta, sub-sinuosa, labio 

 externo crasso, intiis sub-denticulato, labio commellari antice 

 levato. 



Shell ovate, pyramidal, thickish, smooth, snow-white, apex 

 acuminated; volutions 8, the first 6 smooth, the last but one 

 longitudinally ribbed, the last with larger ribs, smooth on the 

 anterior part of the back ; aperture rather narrow, slightly 

 sinuous, outer lip thick, denticulated within; inner lip elevated 

 anteriorly. 



In Mr. Cuming's collection. 



84. Col. recurva. Sow. Z. P. ii. p. 115. (pi. xl. f. 152.) 



Col. testa oblonga, turrita, fulva, spira acuminato-pyrami- 

 dali; anfractibus 10 — 11 ; primis 6 longitudinaliter costatis, 

 ceeteris serie unica tuberculorum instructis ; ultimi dorso 

 sub-gibbo, parte inferiori transversim striata; apertura 

 elongata canaH longiuscula recurva; labio externo reflexo, 

 incrassato. 



Shell oblong, turreted, fulvous, spire acuminated, pyra- 

 midal, volutions 10 — 1 1 ; the six first longitudinally ribbed, 

 the rest furnished with a single series of tubercles, the back 

 of the last rather gibbous, with the anterior part transversely 

 striated ; aperture elongated, canal rather long and recurved ; 

 outer lip reflected, thickened. 



Found among Coral sand in the Isle of Plata, H. Cuming. 



85. Cob lanceolata, ^0?^?. Zooh Pr. ii. p. 116. (pi. xl. 

 f. 153, 154, 155.) 



Col. testa oblonga, turrita, albida, fulvo-varia ; spira acumi- 

 nata, pyramidali; anfractibus 10 — 12, primis 6 — 1, leevigatis, 

 caeteris serie unica tuberculorum instructis ; ultimi dorso 

 subgibbo, antice transversim striato ; aperturce elongatse ca- 

 nali breviusculo, sub-recurvo; labio externo incrassato, 

 variciformi. 



