76 ZOOLOGY OF THE VOYAGE OF H.M.S. SAMAKANG. 



77. PECTUNCULUS, Lamarck. 



1. Pectuncui/us Belcheei. PL XXII. Pig. 5. Pect. testa oblique ovata, depressa, decussatim 

 striata, latere antico brevi, postico rnultb longiore, dilatato, epidermide fusca, dense pilosa, pilis in fimbriis 

 concentricis dispositis. 



Hab. Cape of Good Hope, 120 fathoms. 

 Remarkable for an epidermis of festoons of fringes. 



2. Pectunctjltjs aspeesus. PI. XXII. Pig. 8. Pect. testa magna, orbiculari, subfequilatera, radiatirn 

 subtilissime sulcata et striata, striis concentricis decussata, albida, rubro-fusco adspersa, epidermide fusco- 

 pilosa partim obtecta. 



Hab. Sooloo Archipelago. 



A fine new species, belonging to the same type of the genus as the well-known 

 P. pilosus. 



5. CARDIACEA. 



78. CARDITA, Bruguiere. 



1. Caedita FEEEUGrNOSA. PI. XXI. Fig. 21. Card, testa subcordata, compressa, antice truncata, 

 albo et ferrugineo-rufo variegata, radiatirn costata, costis ad quatuordecim, convexis, nodoso-striatis, inter- 

 stitiis latiusculis. 



Hab. Philippine Archipelago. 



Of an unusually compressed growth, prettily variegated with light rust-colour. 



79. HIPPAGUS, Lea. 



1. HiEPAGTJS novemcostatus. PL XXIY. Fig. 1. Hip. testa suborbiculari, cordata, radiatirn fortiter 

 costata, costis septem ad octo, distantibus, sub lente granulosis ; sordide fusca, intus argenteo-margaritacea,. 



Hab. China Sea. 



A single valve of this remarkable genus, apparently recent, was dredged from among 

 the debris of the China Sea. It is rayed with about seven to eight elevated ribs, covered 

 with a very dark brown epidermis, bright silver-pearled within, and quite distinct from the 

 fossil species, the only Jlippagi known, H. Lsocardioides, Lea, and H. acuticostatus, Philippi. 



80. ISOCARDIA, Lamarck. 



1. Isocaedia teteagona. PL XXII. Fig. 1. Isoc. testa, elongato-cordata, compressiuscula, lactea, 

 hie illic obsolete rufescente, longitudinaliter plicata, plicis angulatis, latere postico acuminato-producto, 

 carina, acuta, umbonibus confertis, minutis. 



Hab. Japanese Seas. 



