142 



l886. Crassatella ziczac Loebbecke & Kobelt in Martini-Chemn. Conch.-Cab, (N. F.), X, {\a), 



Crassatella, p. 28, pi. VIII, fig. 6. 



1890. Crassatella ziczac Paetel, Cat. Conch. Samm., III, p. 139. 



1896. Crassatella ziczac Casto de Elera, Cat. Sist. Filip., p. 786. 



1905. Crassatella ziczac Hidalgo, Rev. Roy. Acad. Cienc. Madrid, III, p. 16. 



1909. Crassatella ziczac Hediey, Austral. Ass. Adv. Sci., XII, p. 346. 



191 7. Crassatella ziczac Laniy, Journ. Conchyliol., LXII. p. 229. 



The shells, which I assign to this species, are weathered and do not show the distinctive 

 colouration of C. ziczac. The shells are subtrigonal, rounded anteriorly, subtruncated and angulate 

 posteriorly, and hâve a sculpture consisting of course but regular concentric ridges. 



Distribution : — C. ziczac is known from Australia and the Philippines. 



The "Siboga" Expédition dredged a right valve at St. 159 (o°59'. iS., i29°48'.8E., 

 41 I mètres) and a complète shell from the mid-channel imSolor Strait off Kampong Menanga (St. 305). 



4. Crassatella spp. 



I hâve not been able to definitely assign a number of young shells from the western 

 entrance of Samau Strait (St. 59), St. 95 (5°43'.5N., ii9°4o'E., 522 mètres) and Banda 

 Anchorage (St. 240) to any species. They resemble Crassatella kingicola Lam. ^), but with 

 young and worn shells it is impossible to be certain. 



Family Carditidae. 

 Genus Cardita Brueuière. 



*ê5' 



1792. Cardita (ex parte), Bruguière, Encyclopéd. Méthod., I p. 401. 



1799. Cardita Lamarck, Mém. Soc. Hist. Nat. Paris, p. 86. 



i8or. Venericardia Lamarck, Syst. Anim. sans Vertèb., p. 123. 



1847. Jesojiia Gray, Proc. Zool. Soc. London, p. 194. 



1847. Mytilicardia Hermannsen, Ind. Gen. Malacol., II, p. 83. 



1857. Âlytilicardia Adams, H. & A., Gen. Rec. Moll., II, p. 488. 



1902. Cardita Dali, Proc. Acad. Nat. Sci. Philadelphia, p. 698. 



1903. Cardita Dali, Trans. Wagner Free Inst. Sci. Philadelphia, III, p. 141 1. 

 1922. Cardita Lamy, Journ. Conchyliol., LXVI, p. 220. 



1925. Cardita Woodring, Miocène Mollusks from Bowden, Jamaica, Pelecypods, etc., p. 98. 



1927. Cardita Cox, Rept. Palaeontol. Zanzibar, p. 51. 



1930. Cardita Stewart, Spécial Publication Acad. Nat. Sci. Philadelphia, N° 5, p. 149. 



For good définitions of the genus Cardita référence may be made to Dall, Lamy, and 

 Woodring. Cardita antiqtiata (Linn.) was designated as the génotype by Children ^), and as a 

 resuit Cardites Link *) with the same génotype becomes an absolute synonym. Dall's and Lamy's 

 treatment of the gênera Cardita and Venericardia needs a certain amount of modification. 



i) For références to this species see Lamy, E. — Journ. Conchyliol., LXII, p. 205 (1917). — Iredale, J. — Proc. Linn. Soc. 

 N. S. Wales, XLIX, p. 202 (1924) has suggested separating C. kingicola with some other species in bis new genus Eiicrassatella-iyç^ 

 Eucrassatella kingicola (Lam.). 



2) Children, J. G. — Quart. Journ. Sci. Lit. Arts, XIV, p. 316 (1823). 



3) Link, H. F., Beschreib. Nat. Samm. Univ. Rostock, p. 153 (1807). 



