LUCINA.— Plate XL 



Species 66. (Fig. n, i, Mus. Cuming.) 



LrciNA PISUM. Luc. tesia globoso-cordritd, solidd, costis 

 roiiceiitricis H rad'wtis tloisirlafliraid, liiterstHUs foveo- 

 lafis, latere postico siilcato, aiitico Itn-ri, hiiinld parvu, 

 profitnde excavatd ; albidd. 



The pea Lucina. Shell globosely cordate, solid, thickly 

 latticed with concentric and radiating ribs, of which 

 the interstices are pitted, posterior side grooved, 

 anterior short, lunule small, deeply excavated ; whitish. 



Ilah. Port Essington ; Jukes. Singapore (in sandy mud 

 at the depth of seven fathoms) ; Cuming. 

 A small solid Isocardia-like species about the size and 



form of a pea, engraved with strong blunt latticed 



sculpture. 



Species 67. (Mus. Cuming.) 

 Li:i:iNA LENTICULA. Ltw. testil orbiculari, depressimculd, 



concentrice creherrime lamii/afo-striaid, lunula obloiigo- 



cord aid ; albd. 

 Thf. little leks LufiNA. Shell orbicular, rather 



depressed, couccutrically very closely laniinately 



striated, lunule oblong-cordate; white. 



Hah. ? 



Partaking very much of the Ibrm of Arlemk, but want- 

 ing the lanceolate pallial siiuis which is characteristic of 

 that senus. 



Species 68. (Mus. Cuming.) 

 LuciXA CALCULUS. Luc. testd cordato-ovatd, alt'wre quam 



loiKjd, crassiusculd, Icevigatd, poUtd ; nitide albd. 

 The pebble Lucina. Shell cordately ovate, higher 



than long, rather thick, smooth, polished ; shining 



white. 

 Ilab. Gulf of Nicoiya (dredged from among coarse sand 



at a depth of from ten to thirteen fathoms); Cuming. 



A small smooth shining white shell of rather solid 

 growth. 



Species 69. (Mus. Cummg.) 

 Lucina fabula. Luc. testd oblongd, planimcwld, utrin- 

 que subalatd, concentrice eleganter laminato-striatd, 

 area Uyamenli lanceolato-pland, himdd lanceolatd, 

 convexd; pellucido-albd. 

 The little bean Lucina. Shell oblong, rather flat- 

 tened, slightly winged on each side, concentrically 

 elegantly laminately striated, area of the ligament 

 lanceolately flattened, lunule lanceolate, convex ; 

 transparent white. 

 Hab. Bataugas, Island of Luzon, Philippines (in coarse 

 sand at a depth of nine or ten fathoms) ; Cuming. 

 Slightly produced on each side, and sculptured through- 

 out with delicate concentric lamime. 



