40 JOURNAL OF CONCHOLOGY, VOL. 9, NO. 2, APRIL, 1S98. 



Iravadia trochlearis A. Gel.* -Many, in excellent condition, 

 Evidently abundant throughout the Indian Ocean. We have many 

 specimens from Bombay, and have seen it from Ceylon, Karachi, and 

 Persian Gulf. Japan, Hong Kong. 



Family CAPULIDAl. 



Amathina tricostata Gm. — Very perfect, though not large. Only 

 one example. East Indies, Japan. 



Crucibulum (Dispotaea) extinctorium Lm. (=C. scutellatum 

 Gr. var.) — Three, fine. West Indies, Ceylon, West Coast of America 

 from Chili to Mazatlan. 



Crepidula (Crypta) scabies Rv. — Many specimens, in good 

 condition. Ceylon, Singapore, China Sea, Japan. 



Crepidula (Ergaea) walshi Herm. (=C. plana Ad. Rv. var). — 

 Many good and characteristic examples. Abundant also at Bombay. 

 Japan, Singapore, China, Ceylon. 



Calyptrasa diaphana Rv. {=.Mitrularia equestris L. var). — Many 

 examples. Tryon has " interpreted this species in accordance with 

 general usage, the Linnsean species being indeterminable." He gives 

 a long synonymic list of forms representing such variety in shape and 

 sculpture, that it is not surprising that they were described as distinct 

 species by the older school of conchologists. China Sea, Philippines, 

 Indian Ocean, Prince's Island, West Africa, West Indies, West Coast 

 of Central America, Galapagos Islands. 



Calyptraea fibulata Rv. (=.Mitrularia equestris L. var.) — Several 

 good examples. Philippines, West Indies. 



Family XENOPHORIDsE. 

 Xenophora Solaris L. — One beautiful example. Malacca, 



Singapore. 



Family LAMELLARIIDM. 



Lamellaria perspicua L. — Neither we nor Mr. Edgar Smith 

 can discover any means of differentiating the Madras form from that 

 found in English waters. 



Family NATICID.E. 



Natica lineata Lm.* — Medium-sized specimens, of typical form. 

 Singapore, Philippines. 



Natica marochiensis Lm. (=2V. maroccana Chemn.) — The 



many examples in this collection of a small cinereous shell, quite 



plain, and concentrically wrinkled in a characteristic manner round 



the sutures, we cannot exactly identify, but presume it is one of 



the many forms of Lamarck's protean species. West Africa, West 



Indies, Panama to Mazatlan, Society and Philippine Islands, Lifu, 



Australia. 



(To be continued). 



