Zoological Societrj. 305 



Cardita pica. Card, testa elongato-ovatd, gibbet, alba, nigro mil 

 fusco vnrie inquinald ; costis septcindecim scdechnvc, in medio 

 angulatis, subtiiUer squamosis ; inlus alba, j'osticc nigevrimo- 

 funcd. 

 Conch. Icon,, Cardita, pi. 2. f, 8. 



Hab. Island of Guimaras, Pliilippines (found under stones at low 

 water) ; Cuming. 



There is a peculiarity in the shape and blotching of this shell 

 which entitles it to be distinguished as a new species. Several 

 specimens were collected by Mr. Cuming at the above-mentioned 

 island, singularly agreeing in respect to these characters. 



Cardita gubernaculum. Card, testa ovato-oblongd, dcpressd, 

 antice brevissimd, angiisld, postice latissime rolundatd, subalatd ; 

 bnmned, luteo imrpurcoque umbones versus tinctd ; costis lilus 

 nmmsve squamosis, superioribus ])erpaucis, viajoribus, inferiori- 

 bus angustis numerosis ; intus brunned, antice albicante. 



Var. /3. Testa alba, fusco vix tincta. 



Concii. Icon., Cardita, pi. 3. f. 9. 



Hab. Zanzibar. 



This is the nearest allied species to the C. semi-orbiculata ; the 

 dark variety miglit indeed be easily mistaken for it, were it not for 

 the scales and peculiar elongation of the ventral portion of the shell. 



Cardita marmorea. Card, testa elliptico-ovald, postice rotun- 

 datd, antice 2^ecuHariter brevi ; lacted, nigro umbones versus ma- 

 culatd ; costis quindecim sedecimce, recto-elongatiuscide radian- 

 tibus, latescentibus ; anticis crenatis, intus eburned. 



Concii. Icon., Cardita, pi. 3. f. 12. 



Hab. New Holland. 



Cardita distorta. Card, testa elongato-ovatd, valde glbbosd, 

 p^eculiariter distortd, luteold ; costis duodccim uut jdurimis, sub- 

 squamosis, inferioribus p)laniuscuUs. 



Conch. Icon., Cardita, pi. 4. f. 13. 



Hab. Red Sea ; Riippell. 



There are several specimens of this curious species in Mr. Cu- 

 ming's collection, all singularly distorted in the same manner. 



Cardita Senegalensis. Card, testa oblongd, elongato-ovatd, 

 fulvd, epidermide fused indutd ; costis quindecim sedecimve, squa- 

 mosis, squamis incumbentibus. 



Conch. Icon., Cardita, pi. 4. f. IC. 

 Leje'son'i Adanson. 



Hab. Senegal. 



This shell, which I know to have been brought from Senegal by 

 M. Rang, approaches nearer to the figure and description of Le 

 jeson of Adanson than any that has been hitherto assigned to it. 



Cardita volucris. Card, testd elongatu, postice valdi gibbosd, 

 angulatd, antice brevi et coarctato-acuminatd ; viridescente albidd, 

 postiee nigra nigroque maculatd ; costis septemdecim, anticis 

 p)lanulatis, marginem versus evanidis ; ^^oiiic?'* angulatis, hinc 

 illinc obsolete squamosis. 



