671 



lunuki3 anticse striis paucis, elcvato-laminatis, in an^ilos narvos 

 productis ; umbonibus parvis, arcuatis. 



In general form this resembles A. lAhmulata, 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. cxliii. f. 65), Reeve, Conch. 

 Icon.^/-i{. pl.iii. f. 13. 



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

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

 bus,^ subelevatis; area ligament! subexcavata, lamellata; lunula 

 Imea profunda circumscripta. 



"Remarkable for the duplicate character of the concentric la- 

 minae. 



North Australia. Juhes. 



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

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



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

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

 ligamenti ad marginem profunde excavate ; lunula lined distinctfi 



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

 whole sculpture much finer. 



North Australia. Jukes. 



_ 60. Artemis tenuilamellata (pi. cxliii. f. 68), Smerhv 

 junior. ^' 



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

 lis duphcatis tenuissimis, acutis. 



In this sheU the lamellae 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 canahculated structure of the dorsal area, but the laminae are 

 totally different. 



Locality unknown. In Mr, Sowerby's collection. 



. , ^ll.^^™f, l^i^^iSA (pi. cxliii. f. 69), Chemnilz (Venus ex- 

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



Art. testa subtrigond, crassiusculfi, albidd, concentrice subru- 



4 s 



