Linn, names. Engl. names. Synon. fy Ref. 



4 pulchella orange-streaked M.Cab. 



5 elegans beaked 



ochroleuca ochre -coloured 



Habitat. 

 u. 



MACTRA. 



1 cyprinus 



2 recurva 



MACTRA. 



brittle 

 recurved 



Br.Mus. 



3 Campechensis grooved 



4 tenera thin spotted 



5 similis rough coated 



6 subplicata wrinkle-skinned 



7 alata pale single-ridged 



8 Veneriformis Venus-shaped 



9 denticulata toothed 



10 subtriangulata truncated 



11 ovata oval 



12 Taprobanensis smooth, angular 



Peru, 

 u. 



Campeachy. 

 Van Dieman's L. 



Tranquebar. 

 u. 



Ceylon. 



DONAX. 



DONAX. 



1 Scalpellura slender Br.Mus. u. 



2 Stultorum mactra-shaped Indian Seas. 



