42 
2. Typuis GRANDIs, A. Adams. (Pl. XXVII. fig. 4.) T. testa 
ovato-oblonga, sublevigata, quadrifariam varicosa, varicibus 
angulosis, crenulatis, postice truncatis, alba, rufo-variegata ; 
anfractibus superne excavatis, in interstitis tubulosis ; apertura 
ovata, canali clauso ; labro eapanso, margine reflexo, crenulato. 
Hab. California. Mus. Cuming. 
A very large, white, solid species, with the whorls tinged with red- 
brown, and excavated near the sutures. 
3. Camiti1a Grayi, A. Adams. C. testa orbiculari, convexo-conot- 
dea, levissima, carnea, maculis subquadratis rufescentibus ad 
suturas ornata ; peripheria albida, maculis transversalibus, 
rufo-fuscis, in seriebus duabus dispositis ; infima facie albida. 
Hab. ? Mus. Cuming. 
4, DetpainutA Martinu, A. Adams. (PI. XXVII. fig. 8.) 
D. testa subdiscoidea, late umbilicata, crassa, rubro-purpurea, 
transversim aspero-suleata, costis transversis, spinis squami- 
formibus, curvatis, laciniatis armatis, instructa ; spira retusa ; 
anfractibus superne angulatis, tuberculato-asperis, anfractu 
ultimo soluto, disjuncto; apertura orbiculari, peristomate di- 
latato, margine laciniato. 
Hab. Padang (Capt. Martin). Mus. Cuming. 
This is a large and handsome species, combining the form of 
D. tyrria with the laciniated ribs and sculpture of D. atrata of 
Chemnitz. 
5. DesmMouLEa riNGENS, A. Adams. (Pl. XXVII. fig. 6.) 
D. testa ovato-acuta, ventricosa, rufo-fuscescente, longitudi- 
naliter plicata, transversim sulcata, cancellata, scabriuscula, 
suturis canaliculatis; anfractibus superne angulatis, ultimo 
sulco profundo ad basin instructo; apertura coarctata, ringente ; 
columella quadriplicata, plicis duabus anterioribus elatioribus ; 
labro inflexo, intus valde corrugato-plicato. 
Hab. ? Mus. Cuming. 
This singular shell has the characters of a Desmoulea, with the 
cancellated whorls and aspect of a Nassa; the ringent, plicate aper- 
ture is very conspicuous. 
6. Guaprus (RosTELLARIA) MELANOCHEILUS, A. Adams. (PI. 
XXVII. fig. 9.) G. testa fusiformi-turrita, pallide castanea ; 
anfractibus convexiusculis, levibus, supremis longitudinaliter 
costatis, ultimo gibboso, antice transversim sulcato ; labio antice 
incrassato, refleco; labro margine dentato, fusco-nigrescente ; 
rostro prelongo, recto. 
Hab. Eastern Seas. Mus. Cuming. 
The characters of this species are constant both in young and adult 
specimens, and are such as clearly separate it from G. fusus, with 
which it has hitherto been confounded. 
