130 PEECY SLAUEN TEUST EXPEDITION. 



426. Cardita cooj^eri, sp. nov. (Plate 5. fig. 11.) 



C. testa trapezoidea, solidula, alba, sequivalvi, valde intequilatemli ; umbonibus perobli- 

 quis, contiguis ; lunula parva, superficie omui longitudinaliter multicostata ; costis ad 

 20, obliquis, crassiusculis, regvilariter ecbinosquamatis, interstitiis spiraliter arete 

 rudi-striatis ; margine dorsali antice fere recto, subquadrate declivi marginem ad 

 ventralem, postice multum abbreviate, pagiua intus alba; cardine incrassato, normali ; 

 sinu palliali distincto, baud sinuoso, margine rudi-denticulato. 

 Alt. 19, diam. 14, long. 20 mm. 



IjOG. Saya de Malha Banks : Station C 2, 125 fathoms, Ijroken shell-rubble. 

 Though not found in perfect condition, this Cardita is seen at once to be not exactly 

 comparable with any of its congeners ; the umbones are very inclined posteriorly, and 

 the ccliinulate ribs, twenty in number, are noteworthy. I name this shell in honour 

 of Mr. C. Forster Cooper, attached to the expedition of H.M.S. Sealark. 



Family Cyprinidse. 



427. Isocardia (Meiocardia) moltkiana (Ohemn.). 



Loc. Saya de Malha Banks : Station G 15, 55 fathoms, on loose LUhothamnia-vubble. 



428. Lihitina guinaica (La.m.)=[Ci/prica>'dia, Lam.]. 

 Jjoc. Chagos Archipelago. 



Family Lucinidse. 



429. Diplodonta globosa {Fovskal). 



Loc. Cargados Carajos : Station B 3, 30 fathoms, sandy. 



430. Lucina {Codakia) exasperata, Beeve. 



Loc. Chagos Archipelago : Diego Garcia, Barachois Maurice. 



Sometimes confounded with L. ( Codakia) tigerina (L.), a species of the Western 

 Hemisphere. 



431. Lucina {Codakia) interrupta. Lam. 



Log. Chagos Archipelago. 



432. Lucina [Codakia) punctata (L.). 

 Loc. Chagos Archipelago. 



Family GaleommidaD. 



433. Gale omnia splendida, Desh. 



Loc. Chagos Archipelago : Egmont Beef. 



A variety, not quite typical. Extends to the Philippine Isles. 



