LUCINA 



>pc( 



(Mus. Cuiuiiig.) 



LuciN'A ARCUATA. LiK. k'std oMiqiie orbicidari, subcom- 

 jn-essd, hemgcitii, striis tiiidaJalis transverse exsculptd, 

 humid oUonrjo-cordatd ; semipdlucido-cdhd. 

 The rippled Lucixa. Shell obliquely orbicular, rattier 

 compressed, smooth, transversely engraved with 

 waving- stria;, lunule oblong-cordate ; semitrans- 

 parent white. 

 Cardiin.i. orciiohr,,!. .Montagu, Test. Brit. p. S.5. pi. .3. f. i. 

 L„cn,„ arcinilu, Fleming. 

 Tt'Uitia divaricdta pars, Ijiunu'us. 

 Lucina divarica(a,'Forhes ami llanh-y. 

 Lucina comnmtata, Philippi. 

 Ilab. Mediterranean. 



This is one, among many instances, in whicii two or 

 three species were confounded by Liunteus uuder one 

 head. Irrespective of its small size, it differs from the 

 true L. dwaricata of the West Indies in not being 

 denticulated ou the posterior side, and in the wavcil 

 transverse strife being loss sharply divaricate. 



Species (32. (Mus. Cuming.) 



Lucina flexuosa. Luc. testa SHbtrigono-orbkidari, 

 Icevigatd, postlce sulcutd, sidco latiitsculo suhprofmido 

 ab umbone in itlrdque oidod riidiante, cardine dente 

 luueo snbobscuro ; albidd. 



The flesuous Lucina. Shell somewhat triangularly 

 orbicular, smooth, grooved posteriorly, the groove 

 being rather broad and deep, radiating in each valve 

 from the umbo, hinge with a single obscure tooth ; 

 whitish. 



renus s'muosa, Donovan, British Shells, vol. ii. pi. 1-2. f i. 

 Tellina flexuosa, Montagu. 

 Amphidesma flexuosa, Lamarck. 

 Lucina sinuata, Lamarck. 

 Cryptodon flexuosum, Turton. 

 Axinus flexuosus, Loeve'u. 



Eab. Britain; Sweden; Massachusetts, U. S. 



The accompanying figure of this species is taki 

 an American specimen, supplied by Dr. Goidd. 



1 from 

 Upon 



our own shores it 

 growth. 



Species Gy. (Mus. Cuming.) 



Lucina ferrugi.nosa. Luc. lesld orbicular i, subobliqud, 

 puslicc uhohde sulcata, concentrici ohscuri costcllatd, 

 H)iiboHibus subprotiiim'idibus ; sordid!: ferrugiiwo-fuscd. 



The rusty Lucina. Shell orbicular, somewhat oblique, 

 posteriorly obsolutely grooved, concentrically ob- 

 scurely rililicd, nmboes rather prominent; dirtv rust- 

 brown. 



FdUBKs and IIaxley, Brit. Moll. vol. ii. p. 00. pi. 31. f. 1. 

 Kcltici fi^rrugiiiosa, Forbes. 



CliiKsina fcrruginoau, ahjssicola, and Crouliiicnsis. 

 JcllVeys. 



Uab. Crete and the :\Iorea ; Captains (Graves and Spratt. 

 Loch Fyue and Skye, North Britain (in mud at the 

 depth of 120 fathoms); M'Andrcw. 



This little species may be easily recognized by its thick 



niious coa 



Species (i4. (Mus. Cuming.) 

 Lucina ge.mma. Luc. testa quadrato-oblougu, plana, 

 tenimsinid, utrinque sulcutd et alatd, coiiccntrici: ele- 

 ganter lauiinatd, laminis subtiUssunii serralis, ad latera 

 squamato-productls ; peUucido-alid. 

 The gem Lucina. Shell squarely oblong, flattened, very 

 thin, grooved and winged on each side, concentrically 

 elegantly laminated, lamina; very finely serrated, 

 squainately produced at the sides ; transparent white. 

 Hab. Loay, Island of Bohol, Philippines. 



.Vn exquisitely sculptured species, allied to L. dentifera. 



Species 65. (Mus. Cuming.) 



LucENA digitalis. Liic. tcstd subtrigoun-orbiculari, 

 convexd, umlique oblique circulariter striato-snlrald ,• 

 albidd, rufo radiatu, epidermide lutesceide indutd. 



The digital Lucina. Shell somewhat triangularly or- 

 bicular, convex, obli([uely circularly striately grooved 

 throughout ; whitish, rayed with red, covered with a 

 yellowish epidermis. 



Lamarck, Anim. sans vert. (Desliayes' edit.) vol.vi. p.2.'U. 



Hub. Gibraltar; M'Andrew. 



Very characteristically engraved with fine grooves, 



ranging oblicjuely across the shell in a eii'cidar manner. 



August, 1S50. 



