476 Zoological Socieh/. 



7)wnerosis, con/ertis, posficc fornicatis, costarum interstitiis sub- 

 prof undis ; (tlbidd, fusco hie illic nebtilosd; intus postice vivide 

 purjmrascente. 

 Conch. Icon., Cardium, pi. 4. f. 19. 



Hab. Cagayan, island of Mindanao, Philip])ines (found among 

 sand at low water) ; Cuming. 



*' The vaulted structure of the scales in this species is about inter- 

 liiediate in its character between that of the scales of the Cardia coit- 

 sors and isocardia. ■■^' -ju-: -- ^i\s 



Cardium australiense. Card, testd transverse ovaid, Do7iaci- 

 formi, medio subcontractd, postice flexuoso-angvlatd, subrostratd, 

 antiee compresso-attenuatd ; dimidio posiieo radiatim suleato, an- 

 tico Icevigato, nitente ; albidd, ared postied strigis brevibus fitscis 

 utrinque ornatd. 

 Conch. Icon., Cardium, pi. 5. f. 24. 

 Hab. Port Lincoln, South Australia ; Harvey. 

 This ghell may be chiefl}' distinguished from the Cardium Donaei- 

 forme, to which it is in many respects allied, by the contracted flex- 

 uous prolongation of the posterior portion, and by the ])eculiarity of 

 one half of the shell being conspicuously grooved, whilst the other 

 half is smooth and shining. 



Cardium oviputamen. Card, testd oblique ovatd, teiiui, ventricosd, 

 7'adiatim temiissitne striata ; nived, opacd, st7-igis litieisve rosaceo- 

 fuscescentibus exilibus iindatis concentrice Tiehulosd, epidermide 

 pallidd margines versus indutd ; marginibus intus subtiliter cre/m- 

 latis. 

 Conch. Icon., Cardiu77i, pi. 7. f. 36. 



Hab. ? . .' . 



The general appearance of this and the following species is very 

 like that of the Cardium serratmn ; both however are of a less oblique 

 form, and the Ca/'dium oiiiputa77ien under consideration is more ven- 

 tricose. 



The concentrically waved pinkish brown marks above noticed, 

 though faintly indicated, are nevertheless characteristic, as distin- 

 guished from those of a different pattern, in the following species. 



Cardium vitellixum. Card, testd obliqu'e ovatd, tenidetdd, radi- 

 atim striatd ; lutescente-albd, 7naculis parvis nu77ierosis rosaceo- 

 fuscescentibus 7/mbo/ies ve7'sus eopiose leTitiginosd, epidermide luted 

 indutd; marginibus intus erenulatis. 

 Conch. Icon., Cardium, pi. 7. f. 37. 



Hab. ? 



1'his shell is of a less ventricose ovate structure than the preceding, 

 and farther distinguished by its different tinge and style of colouring. 



Cardium hystrix. Card, testd subquadruto-cordatd , postice con- 

 cavo-angulatd, 7-adiatim cost aid, cosiis ad duas et trigi/ita, ati- 

 gustis, compressis, posticis squamulis brevibus, cceteris spinis 

 squamcefo)-mibus ereetis, imibones versus subinflexis, elegantissime 

 ornads ; eosta7'um inte/'stitiis striis elevatis transversim subtiliter 



