MORSE: OBSERVATIONS ON LAMELLIBRANCHS. 
1G5 
of the tube and opening was better presented. Below this tube, 
small papillae to the number of forty ran to the lower middle of 
Fig. 22. — Asiarle cret/ncostata Forbes. 
the shell. The foot was light fawn color, narrow and pointed 
and sharply grooved on its ventral surface. 
CARDITA BOREALIS Conrad. 
Fig. 23. Length, 30 mm. 
Fig. 23. — Cardita borealis Conrad. 
