671 



iunulse anticse striis paucis, elevato-laminatis, in angulos parvos 

 productis ; umbonibus parvis, arcuatis. 



In general form this resembles A. bilunulata, but it has not 

 the anterior area or second lunule which characterizes that 

 species. 



San Nicolas, island of Zebu, Philippines; in sandy mud. Cuming. 



58. Artemis lamellata (pi. cxiiii. f. 65), Reeve, Conch. 

 Icon. Art. pi. hi. f. 13. 



Art. testa subovali, subcompressa, alba, prope uinbones minute 

 striata, deinde lamellata; lamellis duplicatis, ad latera pauciori- 

 bus, subelevatis ; area, ligamenti subexcavata, lamellata ; lunula 

 linea profunda circumscripta. 



Remarkable for the duplicate character of the concentric la- 

 mina?. 



North Australia. Jukes. 



59. Artemis duplicata (pi. cxliii. f. 67), Reeve, Conch. 

 Icon. Art. pi. viii. f. 46. 



Art. testa tcnui, albida, subcompressa, subovali, concentrice mi- 

 nute laminata ; laminis postice duplicatis, ad latera productis ; area 

 ligamenti ad marginem profundi excavata ; lunula linea, distincta. 



Like A. lamellata in having the ribs duplicate, but with the 

 whole sculpture much finer. 



Nor-th Australia. Jukes. 



60. Artemis tenuilamellata (pi. cxliii. f. 68), Sowed//, 

 junior. 



Art. testa. A. lamellata et A. duplicates simili, sed tenui, lamel- 

 lis duplicatis tenuissimis, acutis. 



In this shell the lamella; are all thin and sharp. The shell is 

 also thin and of an oval form. It bears a resemblance to A. la- 

 mellata and A. duplicata of Reeve. Like A. lamellata, it has 

 the canaliculated structure of the dorsal area, but the laminae are 

 totally different. 



Locality unknown. In Mr. Sowerby's collection. 



61. Artemis excisa (pi. cxliii. f. 69), Chemnitz (Venus ex- 

 cisa), Philippi, Abbild. Reeve, Conch. Icon. 



Art. testa, subtrigona, crassiuscula, albida, concentrice subru- 



4 s 



