35 



131 



resemble M. elongata, Sws,, lor instance; and his statement of "The Gambia, West 

 Africa" as the locality, also makes it doubtful whether the species he describes 

 and figures is the same as that recorded from the Asiatic waters. Both Reeve and 

 Ci.KSSiN give ''Hanley, Species Recent Shells" as the place where the species was 

 first described ; it is, however, not to be found there at all, and I have not suc- 

 ceeded in discovering where Hanley's original description is to be found. 



Modiola elongata, Sws. 



Modiola elongata, Swainson, E.\otic Conchology. 1821, Part I. Second edit., 1841, p. 31, fig. 8. 

 — — Reeve, Conchol. icon., X, Modiola, Sp. 4. 



— — — Martini u. Chemnitz, Concliyl. Cabin., VIII Bd., 3 Abtli., p. 97, pi. 27, figs. 1—2. 



N. of Koh Kahdat, 4—5 fathoms, coarse sand (2). W. of Koh Chuen, soft 

 clay and mud ('/a). 



Long. 45 mm.* 



Distribution: — Moluccas, Aru Isl., Sorong (Tapparone Canefri), Jobi Is). 

 (Geelwinck Bay). 



Modiola Metcalfei, Hani. 



Modiola Metcalfei, Hanley, Proc. Zool. Soc London, XII, 1844, p. 14. 



— — — Catalogue of recent bivalve shells, p. 235, pi. 24, fig. 25. 



— — — Reeve, Conchol. icon.. X, Modiola, Sp. 16. 



— — — Martini u. Chemnitz, Conchyl. Cabin., VIII, 3 Abth., p. 116, pi. 32, ligs. 3—4. 



— — — L. MORLET, Journal de Conchyl., vol. 37, 1889, p. 161. 



Islands in the Gulf of Siam (L. Morlet). 



This species does not occur in the collections made by the Danish Expedition. 

 Distribution: — Madras, Gulf of Manaar. — Philippines, China (Hongkong), 

 Japan (Nagasaki), Malay Archip., Ratack Isis. (Marshall Isis.). 







Modiola plumescens, Dunk. 



(PI II, Figs. 13-14). 



Perna {Modiola; plumescens, Dinner, Museum Godeffroy, Catalog IV, 1868, p. 115. — V, 1874, p. 175 (no 



description). 

 Modiola tumescens, Dunker, (Clessin) Martini u. Chemnitz, Conchyl. Cabin., VIII Bd., 3 Abth., p. 129, 



pi. 33, figs. 8-9. 



Common between Koh Kram and Koh Kut, 1 — 30 fathoms, sand and shells. 



Long. 3 — 30 mm. 



Distribution: — Viti and Samoa Isis. (Dunker), Java, Amboina and Banda 

 (Ed. v. Martens in litt). 



I was at first of opinion, that the present species should most properly be 

 referred to Mod. barbaia L., ' which it greatly resembles in form and colour; for 

 instance, the epidermal prolongations in my specimens agree exactly with those 



' Taken at Japan by tlie Challenger E.xpedition. 



17* 



