AETEMIS.— Plate V. 



veri/odihiis, exlremitalibiiH per marr/iuem posticum 

 .tquamato-laminalu, area ligamenfi perampld, lata, 

 pnrum excamld, Immld cordatd, impressd ; albidd, 

 ferrug'meo-fusco eximie iinctd et radiatd. 



('I'MiNC.'s Artemis. Shell scarcely orbicular, conspi- 

 cuously angularly produced and truncated behind, 

 concentrically very finely and (;losely striated, stria; 

 converging at the sides, the extremities being squa- 

 mately laminated along the posterior margin, area of 

 the ligament very large, broad, but little excavated, 

 lunule cordate, impressed ; whitish, delicately stained 

 and rayed with rust-brown. 



Hab. San Nicolas, Island of Zi'bu, I'liilippines (in sandy 

 mud) ; Cuming. 



A very distinct species, remarkable for its angidarly 

 produced growth posteriorly, and the spacious ligament- 

 area tluTi'hy occasioned. 



Species 31. (Mus. Cuming.) 



Artemis Gbuneri. Art. testa oriiculari, postice suban- 

 ffulatd, mubones versus paululum attenuatd, compres- 

 mtscidd, cotwentrice creberrime striatd, striis ad latera 

 convergentibiis, per marginem posticum sublaminatis, 

 area ligamenti perampld, parum excavatd, lunula cor- 

 datd, impressd ; alba, umionibiis flavicardibus. 



Gruner's Artemis. Shell orbicidar, slightly angled 

 posteriorly, a little attenuated towards the umboes, 

 rather compressed, concentrically very closely stri- 

 ated, striae converging at the sides, slightly lamina- 

 ted along the posterior margin, area of the ligament 

 very large, but little excavated, lunule cordate, im- 

 pressed ; white, umboes yellowish. 



Philippi, Abbild. und Besch. Conch. Cyth. p. 35. pi. S. 

 f.2. 



Ilab. China. 



Allied in form and general character to A. Ajncana. but 



of larger dimensions. 



