LUCINA 



Species IC. (Fig. a and b, Mus. Cuming.) 

 LuciNA BARBATA. Luc. testa orUculari, plariulatd, in- 

 aquilaterd, postice excavato-angulatd, Imigatd, Uneis 

 incrementi suhrude notatd, lunuld lanceolato-cordatd, 

 pfnfimd7; excavald, deiitilms callosis, suhobsoletis ; 

 scniijidlucidn-alhd, epidermide fibrosd hie illic indutd. 

 The bearded Lucina. Shell orbicular, rather flattened, 

 inequilateral, posteriorly excavately angled, smooth, 

 rather rudely marked with lines of growth, lunule 

 lanceolately heart-shaped, deeply excavated, teeth 

 callous, somewhat obsolete ; semitransparent white, 

 covered here and there with a fibrous epidermis. 



Hab. — ? 



Tlie Light fibrous 

 characteristic feature. 



ilermis of this species is a very 



Species 17. (Mus. Cuming.) 



Ll'cina anxl'Lata. Lac. testa orbicnhiri, suhplaiudatd, 

 bueqidlati'rd, concentrke Iambi idn-Viru Id, I'lrh acidis, 

 erec/is, ii/lerstifiis concentric^ xlnnliK, Imnihl lancco- 

 Udo-ovatu, subprofuiide excavatd ; sciuipcllucido-albd. 



The annulated Lucina. Shell orbicular, rather flat- 

 tened, inequilateral, concentrically larainately ridged, 

 ridges sharp, ereet, interstices concentrically striated, 

 lunule lanceolately ovate, rather deeply excavated ; 

 semitransparent white. 



Hab. California ? 



A thin delicate blue-white shell, sculptured 

 circular ridsjes. 



ith sharp 



Species 18. (Mus. Cuming.) 



Lucina Philippinakum. Lnc. testa orbicidari, vix iiiequi- 

 laterd, postice excavato-angulatd, conceidrice Urald, 

 liris subacntis, corrugatis, nunc distantibus, nunc 

 nunierosis, confertioribus, lirarum interstitiis concen- 

 trice elevato-striatis, lunuld vix nulld, cardine dentibus 

 centralibus nullis, lateralibus callosis, fere obsoletis ; 

 aVid, Uneis subtilibus fuscescentibus ab mnbonibus radi- 

 antibus pallide tinetd, epidermide laeted indutd, umboid- 

 bus plus minusve erosis. 



The Philippine Lucina. Shell orbicular, inequila- 

 teral, posteriorly excavately angled, coneentrieally 



riilged, ridges rather sharp, corrugate, now distant, 

 now numerous antl closer, interstices between the 

 lamina; concentrically sculptured with raised stria;, 

 scarcely any lunide, hinge destitute of central teeth, 

 lateral teeth callous, almost obsolete ; white, faintly 

 marked with fine brownish lines, radiating from the 

 uraboes, covered with a cream-coloured epidermis, 

 uinboes more or less eroded. 



Hanley, Species of Shells. 



Hab. Bay of Manila and Singapore (in sandy mud at, the 

 roots of Mango-trees) ; Cuming. 



This fine species, with its irregular corriigati- seulpture, 

 epidermis, and eroded umboes, has externally the general 

 aspect of a Cyrenu. 



Species 19. (Mus. Cuming.) 



Lucina Anatellinoides. Luc. testa transverse ovatd, 

 lenuicidd, vix inaquilaterd, antice subrostratd, postice 

 obsolete e.vcavato-aiigulatd, miuutissime decnssatim stria- 

 ta, lunidd purvd, lanceolato-oblongd ; albidd. 



The Anatinella-like Lucina. Shell transversely 

 ovate, rather thin, scarcely inequilateral, anteriorly 

 subrostrate, posteriorly obsoletely excavately angled, 

 very minutely decussately striated, lunule small, 

 lanceolately-oblong ; whitish. 



Hab. West Indies. 



Distinguished by its Aiiatinella-]ike form. Tiie iutenor 



of the shell has some slight tinge of colouring. 



Species 20. (Mus. Cuming.) 



Lucina sulcata. Lite, testa orbiculari, depressiusculd, 

 antice subconspicue excavato-angulatd, concentrice irre- 

 gulariter acute sulcatd, lunuld parvd ; sendpellucido- 

 albd. 



The gkooved Lucina. Shellorbicular, rather depressed, 

 anteriorly rather couspicuously excavately angulated, 

 concentrically irregularly sharply grooved, lunule 

 small; semitransparent white. 



Hal. ? 



Though a pellucid white shell, it is of rathei 

 stance, very closely sharply grooved throughoul 



)lid sub 



