externo inths sulcato ; labio interno supra anfractum ultimum ex- 

 tenso; columelld biplicatd, plicd super ior e majore : long.-^, lat, 

 ^■•o lyoll. 

 Hab. in America Mericlionali. (Bay of Caraccas, St. Elena, and 

 Xipixapi.) 



A very elegant, small s))ecies,of a white colour, wiih three rows of 

 squarish brown marks ; likę that of Canc. nodulifera (Sowerby in' 

 Tankerville Catalogue, Appendix), the inner lip is spread over part of 

 the lašt volutionj giving the full-grown shell soniewhat of the appear- 

 ance of a Cassis. 



Dredged in a sandy muddy bottom in from seven to ten fathoms. — 

 G. B. S. 



Cancellaria Clavatula. Canc. testd turritd, brunned, albicante 

 bivittatd, varicosd ; spird attemiatd, acuminatd ; anfractibus 7, 

 rotundatis, spiraliter striatis, longitudinaliter costatis et varicosis, 

 varicibiis sparsis ; aperturd subovali, in canalem desinente ; labio 

 externo intits sulcato ; columelld biplicatd ; peritremate reflexo : 

 long. 1-,V. lat. 4-ž- poli. 



Hab. ad Panamam et Paytam. 



A turrited, fusifoim, varicose species, which very nearly resembles 

 one of the Italian fossils. 



It was taken up from a sand v muddy bottom in seven fathoms water. 

 —G. B. S. 



Cancellaria obesa. Canc. testd ovatd, acuminatd, Itevi, ponde- 

 rosd, pallidd ; spird brevi, attenuatd, decussatim striatd ; anfrac- 

 tibus 6 — 8 ventricosis, spiraliter leviter striatis, ultimo masimo, 

 lesvigato ; aperturd oblongd, utrdque extremitate acmninatd, infrd 

 in canalem brevem desinente ; labio esterno intils sulcato ; peritre- 

 mate tenuiore, infrči subsinuato ; columelld triplicatd, plicd supe- 

 riore maximd, bilobatd, inferiore minimd : long. 2^V, lat. \^ poli. 

 Hab. ad oras Americse ('entralis. (Gulf of Dulce.) 

 Whenyoung, this shell is prettilydecussated with ratherprominent 

 though very narrowribsj but with age it becomes nearly smooth, 

 with obsolete strice. 



Two young ones were brought from Puerto Portrero, and an aged 

 specimen vvas dredged in fifteen fathoms in the Gulf of Dulce. — G.B.S. 



Cancellaria brevis. Canc. testd subglobosd, albidd, brvnneo- 

 varid; spird brevi, contabulatd; anfractibus4 — 5, superne angulatis, 

 crenatis, spiraliter sulcatis, et longitudinaliter costatis ; aperturd 

 obtuse trigond ; labio externo iniUs sulcato ; peritremate obtusius- 

 culo, crenulato ; columelld biplicatd ; umbilico magno, margine cre- 

 natd : long. -rV. lat. -,%■ poli. 

 Hab. ad oras Americae Meridionalis et Centralis. 

 Another of those interesting species vvhich form as it were the 

 passage from the typical Cancellarice to the species vvhich Lamarck 

 has placed among the Delpkinulee under the name of Delph. trigo- 

 nostoma. 



Two specimens were found, one at Puerto Portrero, the other at 

 St. Elena.— G.B.S. 



