ARTEMIS. 



Platb IX. 



Species 49. (Mus. Hanley.) 



Artemis aspera. AH. testa, orhictdari, temdcula, sub- 

 comjjressd, conceutrice cretierrime striata, striis eleua- 

 tiiisciiUs, irregularibus, asperis, ad latera parum pro- 

 itibientioribus, urea Ugamenti plano-excavatd, IcBvigatd, 

 Ittimld cordatd ; sordide alba. 



The rough Artemis. Shell orbicular, rather thin, some- 

 what compressed, conceutrically very closely striated, 

 striic rather raised, in-egular, rough and sharp, but 

 little prominent at the sides, area of the ligament 

 flatly excavated, smooth, lunule cordate; dead white. 



Hah. Manilla (iu sandy mud at low water) ; Cuming. 

 A light shell, sculptured with sharp uneven strife. 



Species 50. (Mus. Cuming.) 



xVrtejiis lunaris. Art. testd ohllquii orbicidari, 



versus atteuuaid, soUdiusculd, compressd, concentrice 

 subobsctire impresso-striatd, area Ugamenti planulaid, 

 parum excavatd, lunula elongato-cordatd ; fiamcante- 

 albd, mnbonibus ad apices roseis. 



The lunar Artemis. Shell obliquely orbicular, attenu- 

 ated towards the umboes, rather solid, compressed, 

 concentrically rather obscurely impressly striated, 

 area of the ligament flattened, but little excavated, 

 lunule elongately cordate ; yellowish white, umboes 

 pink at the tips. 



Cijthurca lunaris, Lamarck, Auim. sans vert. (Deshayes' 

 edit.) vol. vi. p. 314. 



Eab. Mediterranean. 



It seems doutbful whether the Venus hqiinHS of Poli 



refers to this species or to the young of Artemis tiucta. 



Species 51. (Mus. Cuming.) 



Artemis macilenta. Art. testd suborbiculari, valde 

 in/prjuilaterali, tenuissimd, comprts-id, liBvigald, vet 

 striis incrementi mimtte notatd, ared Ugamenti sim- 

 pUci, hmuld oblongd, superjiciarid, vi,v nulla ; albd. 



The lean Artemis. Shell nearly orbicular, very in- 

 equilateral, very thin, compressed, smooth, or finely 

 marked with strife of growth, area of the ligament 

 simple, lunule oblong, superficial, scarcely any ; white. 



Ilab. Salango, West Columbia (in sandy mud at the 

 depth of nine fathoms) ; Cuming. 



This very delicate shell, peculiar in fori 

 to have reached matm-ity. 



Species 52. (Mus. Metcalfe.) 

 ARTE:\ris sculpta. Art. testd suborbiculari, vi.r laliore 

 quam altd, tumidiusculd, concentrice ereberrime striato- 

 liratd, liris striis radiantibus sulundulatis ad latera 

 decussatis, ared Ugamenti simplici, Innuld nblnngn- 

 cordatd, subampld ; sordide albd. 

 The sculptured Artemis. Shell nearly orliieular, 

 scarcely broader than high, rather swollen, concen- 

 trically very closely striately ridged, ridges decussated 

 at the sides with slightly waved radiating ridges, 

 area of the ligament simple, lunule nbloiig-eovdate. 

 rather large ; dead white. 



Hab. ? 



The lateral radiating striaj constitute a veiy character- 

 istic feature in this species, the concentric ridges passing- 

 over them in festoons. 



Species 53. (Mus. C\uning.) 



Artemis turgida. Art. testd suborbicidari, subrugosd, 

 tenuiculd, tumidd, concentrice minutissime striald, urea 

 Ugamenti subappressd, lunula cordatd, snperficiarid ; 

 ferrugineo-albd, lineis rufescentibus radiantibus inter- 

 ruptis obscure penicillatd. 



The turgid Artemis. Shell nearly orbicular, ratlit-r 

 uneven, thin, swollen, concentrically very min\itely 

 striated, area of the ligament a little appressed, lu- 

 nule heart-shaped, superficial ; rusty white, obscurely 

 pencilled with fine interrupted radiating reddish 

 lines. 



IM. ? 



'I'liis has somewhat the light form and appearance of a 



rounded TeUina. 



Species 54. (Mus. Cuming.) 

 Artemis modesta. Art. testd suborbiculari, compressd, 

 mnbones versus subattenuatd, concentrice mimdissimi el 

 ereberrime impresso-striatd, striis irregularibus radian- 

 tibus obscure notatd, ared Ugamenti lanceolato-excavatd. 

 lunuld oblongo-cordatd, impressd ; carneo-nlbicnult: 

 nitente. 



