CYPRICARDIA— Plate I. 



The beaked Cypricabdia. Shell somewhat squarely 

 oblong, posteriorly obliquely angulated, decussately 

 striated, longitudinal striae irregularly waved ; 

 posterior side produced, somewhat attenuated, 

 beaked ; white, interior white, faintly stained with 

 violet at the posterior end. 



Lamarck, Anim. sans vert. (Deshayes' edit.), vol. vi. 

 p. 439. 



Hab. Kangaroo Island, New Holland ; Lamarck. Is- 

 land of Ticao, Philippines (found under stones and 

 coral at low water) ; Cuming. 



This shell is of a'more delicate opake white composition 

 than the preceding ; the extremities are more produced 

 and the longitudinal stria? are waved. 



Species 4. (Fig. a and b, Mus. Brit.) 



Cypbicardia oblonga. Cypr. testa oblongo-ovatd, pos- 

 tice oblique angulatd, decussatim striatd, striis longi- 

 tudinalibus nodulosis, leviter undulosis ; umbonibus 

 compressis ; lutescente, aut pallide rubido-aurantid, 

 angulo postico lineis purpureis interruptis vivide no- 

 tato ; intus albidd, roseo plus minusve tinctd, lineis 

 purpureis brevibus prope marginem radiatd. 



The oblong Cypricardia. Shell oblong-ovate, poste- 

 riorly obliquely angulated, decussately striated, 

 longitudinal stria? slightly waved, made nodulous 

 by the crossing of the radiating stria? ; umbones 

 compressed ; yellowish or pale reddish orange, pos- 

 terior angle of the shell vividly marked with inter- 

 rupted purple lines ; interior white, more or less 

 stained with pink, and radiated near the margin 

 with short purple lines. 



Sowerby, Genera of Shells, No. 20. 



Chama oblonga, Linna?us. 

 Hab. New Holland ; Dr. Goodhall, MSS. The orange- 

 tinted variety (Fig. 4 b) found by Mr. Cuming at 

 Matnog, Province of Albany, Island of Luzon, Phi- 

 lippines, in coarse coral sand at low water. 



It may be observed that I clearly identify the C. oblon- 

 ga, Guinaica and angulata as three separate and distinct 



species ; my previous synonyma therefore in Conch. 

 Syst., vol. i. p. 104, copied from Lamarck, are incorrect. 

 The two magnificent specimens of the C. oblonga here 

 figured are from the celebrated Goodhall collection, now 

 dispersed. 



Species 5. (Mus. Brit.) 



Cypricardia serrata. Cypr. testa subquadrato-ovatd, 

 subflexuoso-distortd, increment i gradibus latninis fra- 

 gilibus numerosis, exiliter serratis, peculiariter no- 

 tatis, interstitiis subtilissime radiatim sulcatis ; pal- 

 lide rosacea, intus vivide purpurea. 



The serrated Cypricardia. Shell somewhat squarely 

 oval, rather fiexuously distorted, stages of growth 

 peculiarly marked by a number of fragile laminae, 

 finely serrated at the edge, interstices filled with de- 

 licate radiating grooves ; pale pink, interior stained 

 with rich purple. 



Reeve, Pro. Zool. Soc, 1843. 



Hab. ? 



No figure nor description can do justice to this beau- 

 tiful shell, so remarkable on account of the delicacy of 

 the pink serrated lamina;. 



Species 6. (Mus. Brit.) 



Cypricardia decussata. Cypr. testa elongato-ovatd, 

 regulariter convexd, tenui, alba, semipellucidd, striis 

 exilibus, undulatis, elevatis, oblique decussatis, ornatd. 



The decussated Cypricardia. Shell elongately ovate, 

 regularly convex, thin, white, semi-transparent, 

 covered with fine, waved, obliquely decussated, ele- 

 vated stria?. 



Reeve, Pro. Zool. Soc, 1843. 



Hab. ? 



This is evidently one of the terebrating species, be- 

 longing to that section of the genus which De Blainville 

 distinguishes by the new title of Coralliophaga. 



The term decussated is here used in its strictest and 

 proper sense, signifying oblique crossing, as in the let- 

 ter X. 



