lOfKNAL OK CONCiroi.OC.V, \ Ol.. (), No. J, Jliv, 189S. 82 



Parallelipipedum tortuosum L.— Three spccimc-ns of iliis 



extraordinary shell. Sin<;ai)()rc, Malacca. 



Cucullaea concamerata ( "hemn.— Two, vcrv fmc Iiuhan Ocean 



(Paetel). 



Pectunculus taylori Angas.— Two odd valves, hoth (luiie 

 distinctive and full grown. Ihc geographical dislril>ution includes 

 Ceylon. 



Famu.v NUCULID.K. 



Nucula mitralis Hinds. — A glossy and very ohliciue small species. 



Also from Malacca. 



Nuculana CUSpidata A. Gd.— Many beautiful examples, abso- 

 lutely identical with a solitary specimen, in the British Museum, with 

 no locality. Gould's types came from North America, and it is strange 

 to have it reported from Madras. 



Family CARDITID.E. 



Cardita canaliculata Rv.— One example only, and that in 



juvenile condition. Those in the British Museum are from the 



Philippines. 



Family TRIDACNIDyE. 



Tridacna gigas L, — One small specimen in a worn condition. 



Philippines. 



Family CARDIID.K. 



Cardium (Acanthocardia) asiaticum Chemn. — Several, in 

 various stages. China, Nicobar Islands. 



Cardium (Trachycardium) rugosum Lm. {=C. flavum \..). 

 Several. Madagascar, Ceylon, Nicobar Islands. 



Cardium (Cerastoderma) latum Born.*— Some characteristic 

 examples. Philippines (Cuming). 



Cardium (Bucardium) coronatum Spengl.— Typical specimens. 

 China. 



Cardium (Bucardium) fimbriatum Wood.— Many examples. 



China. 



Cardissa (Lunulicardia) subretusum Sow.— Several. 'Fhese 

 are a small form of what Paetel and others consider a variety of 



C. retusuin L. Red Sea. 



Family VENERIDM. 

 Meretrix casta Chemn.— A plain, heavily moulded, white 

 porcelain Meretrix, with olive-ochraceous epidermis. A common 



Indian shell. 



Meretrix castanea Lm. {=M. morphina Lm. var.)— Several 



specimens. Singapore, Philippines. 



Callista umbonella Lm.— Many specimens of this variable shell 

 Brazil (Cuming), Red Sea. 



