166 



plerumque simulante ; sed striis crebris spiralibus cincta ; al- 

 bida, rufo-castaneo dense maculata ; apertura vix varicosa, 

 i7itus simplici. 

 Long. -58, long. spir. '34, lat. -24, div, 30°. 

 Hab. Iii Sinu Panamensi ; legit T. Bridges. Sp. un. ia Mus. 

 Cuming. 



Is destitute of the espressed spirai ribs of T. pietus (s. g. Epi- 

 dronius, H. & A. Ad. Gen. i. 103). The only specimen seeu has no 

 teeth in the aperture. lt may be only on the verge of maturity, or 

 it may belong to a Bucciuoid genus. 



25. Phos BiPLiCATUS, U. S. Ph. testą subelevata, anfr. viii. 

 parum rotundatis ; costis radiantibus circiter xi. rotundatis, 

 interstitiis coneavis ; liris spiralibus extantibus aeutis, supra 

 costas castaneo tinctis, quarum iv. in anfr. penult. videntur ; 

 apertura contracta ; labro intus dense Urato, labio interdum 

 rugoso ; columella plica acuta, canalem definiente, altera ob- 

 tusa, vix bifida, superante ; canali acuto, recurvato, ad dorsum 

 nodoso et infra carina acuta ornato ; colore albido, purpureo- 

 fusco tincto. 



Long. r05, long. spir. "6, lat. '64, div. 50°. 

 Hab. In Sinu Panamensi; legit T. Bridges. Sp. un. in Mus. 

 Curaing. 



26. Latyrus tumens, n. s. L. testą " L. gracili " simillima, 

 sed costis maxime tumentibus, attingentibus, suleis spiralibus 

 crebris ornata ; plicis columellaribus iii. quarta obsoleta. 



Long. 2-78, long. spir. 1-57, lat. 1-44, div. 50°. 



Hab. In Sinu Panamensi ; legit T. Bridges. Sp. un. in Mus. 

 Cuming. 



In L. gracilis the spirai lines are few and raised ; in this species 

 numerous and impressed. 



4. Description of New Species and Varieties of Calyp- 



TRiEIDiE, TrOCHID^, AND PyrAMIDELLID.E, PRINCIPALLY 

 IN THE CoLLECTION OF HuGH CuMING, Esa. By PhILIP 



P. Carpenter*. 



1. Crucibulum violascens?, n. s. Cr. t. solidiore, conica, albida, 

 fusco maculata, intus violascente ; vertice nucleoso conspicuo, 

 adunco, anfr. ii. subtumentibus, apice planato ; superficie rugis 



* Mr. Cuming, having most obligingly lent me (for comparison wth Mazatlan 

 species) his type-specimens of various genera that cannot weU be identified 

 merely by descriptions, has asked me at the šame time to describe certain forms 

 which appeared to have escaped the notice of previous -vvriters. Of the group 

 here named Chrysallida, the Vitrinelloid forms allied to Cyclostrema, and the West 

 American species of Calyptroeidoe, details will be found in the Catalogue of the 

 British Museum CoUection of Mazatlan Shells, now in the press. 

 Warrington, June 9th, 1856. 



