CONCHiFEUA. iii 



Ltsf}'. 3 sp. Greenland, Brit. Medit. Black Sea, Senegal, Cape. 

 Fossil, Miocene — . Brit. France, Belgium. 



Capsula, Scliumacher. 



Uti/m. Dimin. of capsa, a box. 



Si/n. Capsa (part) Brvig. 1791. Sauguinolaria Lam. 1818, not 1801. 



T//pe. C. rugosa, PI. XX. fig. 19. (^ Venus deflorata, Gmel.) 



Shell oblong, ventricose, slightly gaping at each end ; radiately striated ; 

 cardinal teeth 2 in each valve, one of them bifid ; ligament external, large, 

 prominent ; siphonal inflection short. 



Animal like Fsammohia ; foot moderate ; gills deeply plaited, attenuated 

 in fi'ont, outer small, dorsal border wide, fixed ; siphons moderate. 



Distr. W. Indies, Red Sea, India, China, Australia. 



Fossil 4 sp. U. Green-sand — . U. States, Europe. (D'Orb.) 



Fig. 218. Psammobia vespertina, Cliemn, ^, Brit. 

 PsAMMOBiA, Lamarek. Sunset-shell. 



Etym. Psammos sand, bio to live. 



Syn. Psammotea (zonalis) Lam. Psaramocola, Bl. Gari, Schum. 



Ex. P. Ferroensis, PI. XXI. fig. 9. P. squamosa, PI. XXI. fig. 10. 



Shell oblong, compressed, slightly gaping at both ends ; hinge-teeth -f i 

 ligament external, prominent ; siphonal inflection deep, in contact with the 

 pallial line ; epidermis often dark. 



Jnimal : mantle open, fi-inged ; siphons very long, slender, nearly equal, 

 longitudinally ciliated, orifices with 6 — 8 cirri; foot large, tongue -shaped ; 

 palpi long, tapering ; gills unequal, recumbent, few plaited. 



Distr. 40 sp. Norway, Brit. India, New Zealand, Pacific. Littoral — 

 coralline zone, 100 fms. P. gari is eaten in India. 



Fossil, 24 sp. Oolite ? Eocene — . U. States, Europe. 



Sanguinolaria, Lamarck. 



Name, from the type, Solen sanguinolenttis, Chemu. 



Syn. Soletellina [diphos) Bl. Lobaria, Schum. Aldus, Oken. 



Ex. S. livida, PI. XXII. fig. 1. S. diphos, fig. 2, S. orbiculata, fig. 3. 



Shell oval, compressed, rounded in front, attenuated and slightly gaping 

 behind ; hinge-teeth f , small ; siphonal inflection very deep, connected with 

 the pallial line ; ligament external, on very prominent fulcra. 



Animal: mantle open, fringed; siphons very long, branchial largest 



P3 



