.tOtJRNAt. OK rONCHOLOCY, VOL. 0, N... J, JULY, I89S. 84 



Irus macrophylla Dh- Quite youn^, no mature examples. A 

 beautiful species, uuich lighter, more rounded, and having the lamina; 

 more produced than our British K irus; it also differs in being 

 foliated and cancellated. Philippines. 



Family PETRICOl.ID^K. 

 Petricola lithophaga Retr.— Indistinguishable from European 



specimens. 



Family DONACIDAi. 



Donax (Hecuba) scortum L.*- Several, in various stages of 

 growth. Cape of Good Hope. 



Donax (Latona) abbreviatus Lm.*— Many example.s. Philip- 

 pines. 



Donax (Latona) cuneatus L.— Four specimen.s. Ceylon. 



Family PSAMMOBIIDM. 

 Gad anomala Dh. — One small but perfect example ; also 



reported from Australia and New Holland. 



Sanguinolaria hendersoni M. & S., vide aittea, p. 33.' 



Family SOLENID^^l. 

 Siliqua radiata L. — Very beautiful and well-coloured examples. 

 Sumatra. 



Fam I i.y MESODESMA TID.^.. 

 Mesodesma (Paphia) trigona Dh. — Large examples. Habitat 



hitherto unknown. 



Family MACTRID^. 



Mactra attenuata Dh. — Several ; somewhat attenuated pos- 

 teriorly, and of a peculiar dark livid ash-violet, within and without. 

 Habitat hitherto unrecorded. 



Mactra fasciata Lm. — Several; agreeing with Reeve's descrip- 

 tion. 



Mactra spengleri Born {=M. Icevis Chemn. var.). — Our speci- 

 mens are rather young, but agree with the description and figure in 

 Reeve. 



Schizodesma spengleri L. — Several typical examples. 



Family MYID.E. 



Corbula modesta Hinds*.— Five, all young, but agreeing with 



Bontb-^i^' specimens received from Mr. Abercrombie. Philippines. 



Corbula sulcata L:;;. -7'hree young but recognisable specmiens 



Senegal. 



Family PHOLADID/E. 



Martesia striata L.— A drift species, its distribution therefore 



extending over the tropics. The "Challenger" specimens in the 



British Museum came from the Arafura Sea. 



I The clescriplion of this species was published on the cover of the Journal on Jan. ist., 1898.— hd 



