AETEMIS.— Plate L 



trically striated, strife somewhat raised and thick-set 

 at the sides, area of tlie ligament rather flattened, 

 but little excavated, lunule oblong-cordate, impressed. 



Deshayes, Traite Ele'm. pi. 20. f. 13, 13. 

 Venus liiicta, Pulteney. 

 Cytherea lincta, Lamarck. 

 Cytherea simata, Turton. 

 An eadem var. Artemis compta, Loven. 



Hah. Southern Europe and the British Isles (from low- 

 water mark to a depth of about sixty fathoms). 



Species 3. (Mus. Cuming.) 



Artemis eufa. Art. testa sttborbiculari, crassiusculd, 

 suhgibbosd, concentriee liratd, liris ad latera subpro- 

 minentioribiis, aredligamenti siibampld,excavatd, lunula 

 cordatd, impressd ; ferrugineo-rufd, varie albiradiatd. 



The red Artemis. Shell nearly orbicular, rather thick 

 and gibbous, concentrically ridged, ridges rather 

 more prominent, area of the ligament rather large, 

 excavated, lunule cordate, impressed ; rust-red, vari- 

 ously rayed with white. 



Cytherea rnfa, Lamarck, Anim. sans vert. (Deshayes' edit.) 

 vol.vi. p. 311. 



Hab. ? 



Although readily distinguished from typical examples 



of A. juvenilis, many may incline, with M. Deshayes, to 



regard it as a variety of that species. 



Species 4. (Mus. Cuming.) 



Artemis pondeeosa. Art. testd suborbiculari, compres- 

 sitiseuld, paululum latiore quam, altd, concentriee sul- 

 catd, sulcis medio fere obsoletis, area ligamenti sim- 

 plici, lunuld oblongo-cordatd, concavo-impressd ; laded, 

 epidermide tenui corned nitente indutd. 



The ponderous Artemis. Shell nearly orbicular, rather 

 compressed, a little broader than high, concentrically 

 grooved, grooves almost obsolete in the middle, area 

 of the ligament simple, lunule oblong-cordate, con- 

 cavely impressed ; cream-colour, covered with a thin, 

 shining, horny epidermis. 



Gray, Analyst, 1838, vol. viii. p. 309. 



Artemis gigantea, Philippi (fide Sowerby, MS. ined.) 



Hab. Gulf of California (in sandy mud at low water). 

 This fine large species approaches very closely to the 



A. concentrica ; it is of a more orbicular form, and the 



sculpture is less definitely engraved. 



Species 5. (Mus. Cuming.) 



Artemis juvenilis. Art. testd suborbiculari, crassius- 

 culd, concentriee teimiliratd, liris ad latera sublamella- 

 tis, ared ligamenti subampld, excavatd, lunuld cordatd, 

 plano-impressd ; alba, biradiatd, rufo maculatd. 



The youthful Artemis. Shell nearly orbicular, rather 

 thick, concentrically finely ridged, ridges slightly 

 lamellated at the sides, area of the ligament rather 

 large, excavated, lunule cordate, flatly impressed; 

 white, two-rayed, blotched with rust-red. 



Venus juvenilis, Gmelin, Syst. Nat. p. 3387. 



Venus juvenis, Chemnitz. 

 Hab. Bay of Manila, Island of Luzon, Philippines (in 



sandy mud) ; Cuming. 

 The colouring of this species is very similar to that of 

 the Australian A. scalaris, of which it might easily be 

 taken for a dwarf variety. 



Species 6. (Mus. Cuming.) 

 Artemis Chinensis. A?-t. testd subquadrato-orbiculari, 

 tenuiculd, valde gibbosd, concentriee subirregulariter 

 striata, striis elevatiusculis, striis aliis tenuibus im- 

 pressis radiantibus decussatis, ared ligamenti simplici, 

 lunuld nulld, marginiius intus crenulatis; albidd,ferru- 

 gineo tinctd, marginem versus cinereo-carulescente. 

 The Chinese Artemis. Shell somewhat squarely orbi- 

 cular, rather thin, very gibbous, concentrically rather 

 in-egularly striated, striae somewhat raised, crossed 

 with other thin impressed radiating striae, area of 

 the ligament simple, no lunule, margins crenulated 

 within ; whitish, tinged with rust-brown, coloured 

 with ash-blue towards the margin. 

 Venus Cldnensis, Chemnitz, Conch. Cab. vol. x. p. 356. 

 pi. 171. f. 1663. 

 Cyprina tenuistria, Lamarck. 

 Hab. China, Korea. 



This species has the characteristic paUial impression of 

 Artemis, although the shell, having no lunide, is some- 

 what of an abnormal form. It was certainly incorrectly 

 placed by Lamarck in the genus Cyprina. It ranges 

 from China as far north as the islands of the Korean 

 Archipelago, where the species is abundant and the animal 

 is eaten by the inhabitants as a common article of food. 

 Some specimens are much more gibbous, or rather globose, 

 in their growth than others. The coloiu- most inclines to 

 bluish lavender or ash towards the margin. 



Species 7. (Mus. Cuming.) 



Artemis hepatica. Art. testd subquadrato-orbiculari, 



te/iuiculd, compressd, concentriee teiiuissimi striata, 



sub lente striis tenuissimis radiantibus impressd, ared 



ligamenti simplici, lunuld subelongato-cordatd, super- 



ficiarid, vix nnlld ; livido-ccerulescente, umbonibus pal- 



lide rufescentibus autflavidis, intus violaced. 



The liver-coloured Aktemis. Shell somewhat squarely 



orbicular, rather thin, compressed, concentrically very 



finely striated, impressed beneath the lens with very 



fine radiating striae, area of the ligament simple, 



lunule rather elougately cordate, superficial, scarcely 



any ; livid-blue, umboes pale reddish or yellowish, 



interior violet. 



Philippi, Abbild. und Besch. Conch. Cyt/i. pl.4. pi. 2. f.3. 



Hab. ? 



Like the preceding species in form, only that it is much 

 smaller and flattened. It is faintly impressed with ra- 

 diating stri;e, and there is little indication of any lunule. 



