CARDIUM. 



Species 59. (Mus. C tuning.) 

 Cardium Cumingii. Card, testa transverse ovatd, tenui, 

 fragili, latere postico hiante; subtilissime cancellatd, 



antic? riiyosii, jm/ic rnitiri! rris/ii <v/ ln„iiild elevatd, at 



umbonibm ad niargines decurrente, pulcherrime ornatd ; 

 diapliano-rosed. 

 (i ming's Cockle. Shell transversely ovate, thin, fragile, 



pn-teri'iv side- gaping ; very tinely cancellated, wrinkled 

 anteriorly, anterior portion of the shell very beautifully 

 ornamented with a thin elevated crest or lamina run- 

 ning down from the umboues to the margins ; trans- 

 parent rose pink. 



Beodeeip, Pro. Zool. Soc, 1S33. 



Hah. Gulf of Dulce, Central America (found in sandy mud 

 at the depth of twelve fathoms) ; Cuming. 

 The external appearance of this remarkably delicate 



transparent rosy Cocklt 



of the Anatinoe. 



not much unlike that of some 



Species 60. (Mus. Cuming.) 

 Caedium steiatulum. Card, testa transverse ovatd, te- 

 mriculd, latere postico pardulum hiante; radiatim cre- 

 bristriatd, striis conspicuis, elevatk, rugis subtilissimis 

 undatis peculiariter cancellatis, striis posticis verms 

 margim s minut'mime lirevispinosk ; pallide ferrugineo- 

 albd : intus aM, radiis bints aurawMo-rufis ab umbone 

 utriusque valva divergentibus. 

 The finely striated Cockle. Shell transversely ovate, 

 rather thin, posterior side a little gaping, radiately 

 closely striated, striae conspicuous, elevated, peculiarly 

 cancellated with very fine waved wrinkles posterior 

 stria; covered towards the margins with minute short 

 spines ; pair rusty white, two orange-red rays diverg- 

 ing from within the umboues of each valve. 

 Sowerby, Pro. Zool. Soc, 18 tO. 

 Eab. New Zealand. 



A thin delicate shell, slightly produced at the posterior 

 side, and having its entire surface cancellated with fine irre- 

 gularly waved wrinkles. 



Species 61. (Mus. Cuming.) 

 Caedium Beasilianum. Card, testa oblique ovatd, m 



Uneis spadicfo-rufis hnujituiVinntilvx ,„iii;ji,us n,:-n- 

 creberrime pictd, areis postkd antiedque fasciis bn oibiu 

 lat"tsculis nigricante-cint n is subirregulariter decussatd 

 The Brazilian Cockle. Shell obliquely ovate, attenu- 

 ated towards the umbones, smooth, shining; ashy 

 white, closely painted towards the margins with 

 brownish red longitudinal lines, posterior and anterior 

 arras -umrwhat irregularly crossed with rather broad 

 dark ashy bands. 

 Lamarck, Anim. sans vert . ( Deshaj es 1 edit .)vol. vi. p. 393 

 Eab. Coast of Brazil. 



The radiating longitudinal lines, with which this shell 

 is partially painted, are very characteristic. "I i 

 quille," says Lamarck, " n'offre ni cotes, ni stries longitu- 

 diuales, rnais seulement des lignes colorees." 



bones versus attenuatd, lamgatd, nitidd; cinereo-aBa 



December L844 



Species 62. (Mus. Cuming.) 

 Caedium eeinaceum. Card, testa rotundato-cordatd, glo- 

 bosd, radiatim costatd, costis senis et triginta, acut* 

 angulatis, aculeis numerous breviusculis, postice inflt xi t, 

 basi papillifem, anticis praeipue, i 

 armatis, costarum iiitcn-titiis pm/mnlc i.mivatis, trans- 

 verdm impressostriaiis ; rufo-fusa i 



The hedge-hog Cockle. Shell rotundatelj cordate, glo- 

 bose, radiately ribbed, ribs six and thirty in number, 

 sharply angled, very closely armed down the middle 

 with numerous rather short spines bent over in the 

 posterior direction and papuliferous at the base, the 

 anterior especially, interstices betwe< o the ribs deeplj 

 excavated, transversely impresslj striated; light red- 

 dish-brown. 



Lamarck, Anim.sans vert.(D( shayes' edit.), vol. vi | 



Eab. Mediterranean. 

 This specii • tnaj bi easily distinguished from th i 



diutn aculeatum bj its havinga greater number of ribs, and 



by the papuliferous structure of its spines. 



Species 63. (Fig. a and b, Mus. Cuming.) 

 Caedium rugati a. Cat id,fra- 



gili, lati 



costis ad tribus Vi 

 subsuperficiariii, 

 roseo variegatd, vi 

 umbonibus roseo-purpureU. 



