oa 
~ 
broken reddish rays ; lunule lanceolate and elevated in 
the middle"into a sharp ridge. 24. Devon, Scotland, 
Bantry Bay. 
*V, CanceLiata. Turt. B. p. 144. t.10. f. 3.—F. 
p. 447.—Rounded-: heart-shaped, anteriorly angular, 
white with sometimes a rosy tinge, with nine or ten re- 
mote transverse plates which are closely cancellated, the 
interstices with close set radiating riblets ; beaks promi- 
nent; lunule cordiform, %. Guernsey. 
V. Supcorpata. Mont. p. 121. ¢. 3. f. 1—Pen. 4. 
p. 204.—Lin. T. 8. p. 82.—D, p. 166.—Turt. C. D, 
p. 237.—Turt. B. p. 145.—F. p. 447.—Subcordate, 
slightly truncated posteriorly, white, strong, ligamental 
edge sloping rapidly; with strong radiating riblike 
strie, and remote transverse ridges; beaks much in- 
curved. +. Falmouth. 
* I feel far from certain that this is really distinct 
from Turton’s Dysera, which is assuredly the Cancel- 
lata of Lamarc: for the present species, Mr. Turton 
gives us as synonyms,—CaNncELLATA. Lin, 1130, 
—Ch. f. 304. and 305. 
