669 



51. Artemis Japonica (pi. cxliii. f. 60), Reeve, Conch. Icon. 

 Art. pi. iii. f. 17. 



Art. testa suborbiculari, paululum latiore quam alta, albida, 

 subcompressfi, postice supeme subangulata, concentrice minute 

 costellata, costellis ad latera paucioribus et elevatim laminatis. 



The sculpture is less fine and the dorsal part of the shell more 

 elevated and angular than in A. scabriuscula ; at the hinder side 

 the laminee suddenly become few and broadly laminated. 



Japan. Dr. Siebold. 



52. Artemis subrosea (pi. cxliii. f. 61), Gray, Yates' New 

 Zealand, p. 309. 



Art. testa pallide rosaceo-fulva, latiore quam alta, tenui, con- 

 vexa, concentrice creberrime elevatim striata, striis ad latera lami- 

 natis minutissimis ; area ligamenti subexcavata, striata; lunula 

 ovali, impressa. 



Of a rather oval form, with very fine striae, which are so close 

 at the umboes as to give a glossy appearance to the surface. This 

 species differs from A. Japonica and A. scabriuscula in having the 

 stria? as close at the sides as at the middle of the shell. 



New Zealand. 



53. Artemis Sieboldii (pi. cxliii. f. hi), Reeve, Conch. Icon. 

 Art. pi. vii. f. 39. 



Art. testa fusca, rotundata, convexa, concentrice tenuissime 

 lirata, liris antice laminatis, postice paucioribus, elevatiusculis, 

 corrugatis; lunuhi impressa; area ligamenti latiuscula, vix ex- 

 cavata, squamarum grandium serie marginata. 



Eemarkable for the corrugated character of the ridges on a 

 distinct portion of the posterior side, and for the row of large 

 laminated scales, into which some of the ridges are expanded at 

 the edge of the ligamental area. 



Japan. Dr. Siebold. In Mr. Cuming's collection. 



54. Artemis corrugata (pi. cxliii. f. 63), Reeve, Conch. 

 Icon. Art. pi. iv. f. 24. 



Art. testa suborbiculari, paululum latiore quam alta, tenui, 

 convexa, sordide albida, concentrice striata, striis in medio tenuis- 

 simis, subobsoletis, ad latera (postice prtecipue) elevatis, crassius- 

 culis, corrugatis et convergentibus ; striis radiantibus obsoletis; 

 area ligamenti laminata, vix impressa; lunula suboblonga, im- 

 pressa. 



