62 
gata, postice attenuata ; columella biplicata, plica postica tu- 
berculiformi, antica biloba. 
Hab. Catbalonga; Samaar, 8 fathoms; Philippines. Mus. Cuming. 
This is a small white solid species, resembling in appearance the 
Acteon oryza of Reeve ; but the columella is biplicate, and the front 
plica is double. 
6. Descriptions oF New SpPEcIEs oF SHELLS, FROM THE 
CoLLection oF Huexu Cuming, Esa. 
By G. P. Dresuayes. 
1. Macrra APpHRODINA, Desh. WM. testa transversa, ovato-tri- 
gona, tenui, depressiuscula, inequilaterali, albido-violacea, zonu- 
lis transversis, suturatioribus irregulariter interrupta, trans- 
versim regulariter eleganterque striata; latere antico paulu- 
lum attenuato, superne recto, declivi, postico equaliter obtuso ; 
umbonibus minimis, acutis, parum prominentibus, albidis; car- 
dine angusto, utroque latere violaceo-maculato ; fossula mi- 
nima, angusta, obliqua, dentibus lateralibus lamellosis ; valvis 
intus vivide violaceis in medio pallidioribus ; timnpressione pallit 
margine inferiore remoto, sinu angusto, brevi, horizontal. 
Hab. ? Coll. Cuming. 
2. Macrra arrenvata, Desh. WM. testa ovato-trigona, trans- 
versa, tenui, turgida, inequilaterali, transversim irregulariter 
striatissima, livide violacea, ad umbones atro-violacea, intus pal- 
lidiore violacea ; latere antico breviore, obtuso, superne declivi, 
latere postico declivi, attenuato; umbonibus brevibus, parum ob- 
liquis, approximatis ; area elongato-ovata lunulaque tenue stri- 
atis; cardine angusto, fossula profunda, dentibus lateralibus 
lamellosis, prominentibus, antico multo breviore; sinu palli lato, 
vix excavato. 
Hab. ? Coll. Cuming. 
3. Macrra contrariA. WM. testa ovato-trigona, equilaterali 
subsymmetrica, compressiuscula, nitida, transversim obsolete 
tenuissime striata, utroque latere equaliter convexiuscula, de- 
clivi, latere inferiore valde arcuato, latere antico et postico 
subangulatis ; lunula areaque sulcatis, sulcis lunule profundis, 
inferne convergentibus, rugis brevibus in eutremitate antica 
contrariis; umbonibus minimis, violaceo-tinctis; valvis tenuibus, 
pallide stramineis, intus violascentibus; cardine angusto, fossula 
minima, dentibus lateralibus lamellosis, equalibus ; sinu pallii 
brevi, angusto. 
Hab. ? Coll. Cuming. 
4. Macrra corsicutoipes, Desh. M. testa trigona, ventrico- 
siuscula, subequilaterali, transversim tenue et obsolete striata, 
griseo-cerulescente, zonulis angustis, violascentibus transversim 
interrupta; umbonibus tumidis, levigatis, oppositis, atro-viola- 
