605 



36. Artemis seiucea (pi. cxlii. f. 42), Reeve, Conch. Icon. 

 Artemis, pi. viii. f. 36. 



Art. testa subovali, tenui, latiore quam alta, concentrice tenuis- 

 sime striata, striis vix ad latera elevatis ; area ligamenti elongata, 

 paululiim depressa ; lunula ovali, impressa ; colore prope umbones 

 i'ulvo, ad margines grisescente. 



A rather oval shell, of a delicate fawn-colour at the umbocs 

 and towards the middle, but becoming greyish towards the mar- 

 gin ; the stria? are so close and fine as to give a silky appearance 

 to the surface, and are scarcely more raised close to the hinder 

 edge, which is slightly angulated. This shell is rather more 

 regularly oval, with the striae more equally raised throughout, 

 than in the following species. 



Japan, Dr. Siebold; and San Nicolas, island of Zebu, Philip- 

 pines, Cuming. 



37. Artemis compta (pi. cxlii. f. 45), Loven, Index Mol- 

 lusc. Scandinavian, p. 39. Artemis glauca, Reeve, Conch. Icon, 

 pi. x. f. 58. 



Art. testa subovali, latiore quam alta, fulva, grisescente, con- 

 centrice tenuissime striata, striis ad latera creberrime et lamina- 

 tim elevatis ; area ligamenti depressa ; lunula impressa. 



Of an oval form, differing from A. sericea in the lateral eleva- 

 tion of the striae. 



Philippines. 



Sect. 5. Dorsal margin with a defined area; generally ex- 

 cavated. 



8. Artemis Orbignii (pi. cxlii. f. 54), DunJcer, Phil. Ab- 

 bild. Cgtheraa, pi. vi. f. 3. 



Art. testa subrotundatii, solida, subcompressa, albida, umbones 

 versus livida, concentrice striata, striis subdistantibus, clevatius- 

 culis, rcgularibus, ad latera paucioribus, elevatis ; area ligamenti 

 excavata, lanceolata; lunula subimpressa. 



ltather round, tlattish, with raised, distant, concentric lines, 

 some of which converge near the sides ; the colour tends to 

 livid or grey towards the umboes. The description by Philippi 

 almost identifies this with A. torrida of Reeve. 



Guinea, Sams. Mouth of the river Gaboon, Western Africa. 



