Sluilit'S on iiiiir'iiH' OsliMiods 



303 



F'i^. lilir. — ■ C.(Siphfiru>slrn) itpiiiijera n. sp., $. — :i. Shi-ll. si'fii rrom llu- side: 40 X. i. Shell, soen rrom Im'Iow. tlii' 



opening of the siphon represcnled by a dolled circle: .'!! X. 5. Vnlerior part of the ri<;ht valve, seen from the inner 



side: 138 X. ^i. One of the anterior hrislles on the list jnst lieliind llie roslral inci<nr of Ihi' shell; (ii; x. '-. Upper 



lip. ^eiMi fi'oni the side; 166 X. 8. Furca: the secondary leelh of the claws aru not drawn; 166 X. 



