A. EF. Verrili—The Bermuda Islands; Geology. 185 
Phacoides pennsylvanicus (Linn.) Dall, 1901, 
Venus pennsylvanica Linn.; Nelson, 1840. 
Lucina pennsylvanica of most writers. 
Lucina speciosa and L. grandinata Reeve (t. Dall.). 
Lieut. Nelson, 1840, recorded this as Venus pennsylvanica, and 
wrote as follows: 
“A stratum of these, in indifferent preservation, is in the quarry 
whence the stone for the pier at St. George’s ferry was obtained. 
This bed, however, is of trifling extent compared with an apparently 
corresponding one in the chain of islets reaching across the mouth 
of Crow-lane Harbour, beginning near Phyllis’ Island, and continu- 
ing thence through every point till it reaches Harris’s Island: it is 
about five feet thick and lies about six feet above the water.” 
Variety somersensis, nov. Figure 63. 
Figure 63.—Phacoides pennsylvanicus, var. somersensis, left valve, natural size. 
Type. 
Two separate valves of this large and thick shell were found by 
me near Hungry Bay, 1901. It is thicker, more convex, and 
much more oblique than the typical form, with the umbo more 
prominent and the beak more incurved, and situated more ante- 
riorly. The dorsal area is defined by a wide and rather deep groove; 
the lunule is large, strongly cordate, and sunken. The cardinal and 
specimens with him to some extent, as is shown by their correspondence, which 
I have seen, but Jones seems to have made very little use of Bartram’s collection 
in compiling his own lists of 1864 and 1876, which are much more accurate than 
Bartram’s later lists. Mr. G. Brown Goode also visited Mr. Bartram’s place and 
saw his collection, but made very little use of it, except that he credits a few 
species of fishes to him, in his list of 1881 (Bermuda Almanae, p. 116). 
