345 
130. CorsicuLa Brensoni, Desh. C. testa ovato-transversa, 
subtrigona, equilaterali, laevigata, nitida, depressiuscula, ex- 
tremitatibus obtusa, utroque latere equaliter declivi, epider- 
mide tenui, nitente, virescente vel flavescente induta, aliquan- 
tisper lineis interruptis, fuscis radiata, intus alba, vel pallide 
violascente ; cardine angusto, tridentato, dentibus inequalibus 
valde divaricatis, dentibus lateralibus prelongis, angustissimis, 
tenuissime striato-crenatis, antico paullo longiore. 
Hab. Bengal (Benson). Coll. Cuming. 
131. Corpicuna amBieua, Desh. C. testa ovato-trigona, equi- 
lateral, subcordiformi, transversim dense striato-sulcata, striis 
regularibus, antice posticeque evanescentibus, epidermidenitente, 
nigro-virescente vestita, in latere postico tenuissime striato- 
lamellosa, intus violacea; umbonibus angustis, prominentibus, 
antice obliquatis ; latere antico atque postico equaliter con- 
veatusculis, declivibus, obtusis ; cardine angusto, dentibus tribus 
primariis inequalibus, brevibus, simplicibus, antico valve dextre 
dente laterali adnato, dentibus lateralibus equalibus, longis, 
extremitate inferiore leviter arcuatis, crenulato-striatis. 
Hab, Euphrates. 
132. CoRBICULA TRIANGULARIS, Desh. . testa trigona, equi- 
laterali, alta, tumidula, solida, epidermide fuscescente vestita, 
transversim irregulariter striato-rugosa, utroque latere equali- 
ter declivi ; umbonibus prominentibus, violaceo-lividis vel roseis, 
violaceo subradiatis; valvis intus superne rubescentibus, ad 
margines violaceis; cardine incrassato, inequaliter tridentato ; 
dentibus lateralibus crassis, prelongis, tenuissime striatis. 
Hab. ? Coll. Cuming. 
133. CorpicuLa sutcaTina, Desh. C. testa ovato-trigona, tur- 
gidula, cordiformi, subequilaterali, obliqua, transversim dense 
et tenue sulcata, sulcis postice evanescentibus ; lunula depressa, 
levigata; epidermide viridi-flavescente, ad umbones decorticata; 
umbonibus levigatis, prominentibus, obliquis; intus candida, 
* ad margines pallide castanea ; cardine angusto, utroque latere 
bidentato, dentibus lateralibus equalibus, brevibus, striatis. 
Hab. ? Coll. Cuming. 
134. Cyrena (ANomALA) MaARITIMA, C. B. Adams. C. testa 
orbiculato-cordiformi, subcequilaterali, turgida, tenui, trans- 
versim irregulariter et dense striata, epidermide viridi-fusces- 
cente induta; umbonibus magnis, parum obliquis, approwi- 
matis, acutis, levigatis ; latere antico superne declivi, convexi- 
usculo, in medio parumper attenuato et obtuso, postico brevi, 
truncato, area magna, convexa, ovata, angulo obtuso, decurrente 
eircumdata ; eardine angusto, dentibus primariis tribus, mini- 
mis, subequalibus, approximatis, apice bifidis, divergentibus, 
