BALCH: LIST OF MARINE MOLLUSCA. 
157 
its extreme southern limit, I believe, as a shoal-water form, and 4 
fath. would be above its usual habitat even in much more northern 
waters. But the animal was alive and admitted of no doubt in 
identification. Smith and Prime admit the species only doubtfully 
on the authority of He Kay as “ rare ” and assign it a range from 
Stonington north, so this is really an addition to their list. Verrill 
mentions no locality west of New Haven, where Hr. Perkins found 
var. lutea (—Astarte lutea Perkins). 
Astarte castanea (Say). Smith and Prime (’70), p. 387. Ver¬ 
rill (73), p. 685. N. 
A few live specimens in black mud, 3-4 fatli., and a few old 
valves. Rare. 
?? Astarte quadrans Gould. Verrill (73), p.685. 
It is doubtful whether the shell so identified was correctly placed, 
even supposing this to be a good species. It is at all events a 
marked variant from the preceding. 
Crassatellidae. 
Eriphyla lunulata (Conrad). Astarte l. Smith and Prime 
(70), p.387. Gouldia mactraeea Gould. Verrill (73), p.685. S. 
One dead specimen, fairly fresh, and several much worn valves 
from hard bottom in 4 fath. 
Lucixidae. 
??Lucinafilosa Stimps. Verrill (73), p.686. 
A veiy small shell, about 5 mm. high, extremely compressed 
and with very conspicuous concentric lamellae, is assigned to this 
species with the greatest uncertainty. It was at first taken for the 
young of Venus mercenaria , which it much resembles, but there is 
no pallial sinus, and the teeth, though so undeveloped as to be 
equivocal, point to the Lucinidae. Being eroded and immature, 
it is beyond positive identification and may have come from a 
distance, very possibly carried by some fish. 
Tellinidae. 
Tellina tenera Say. Smith and Prime (70), p. 389. Angulus 
tener Verrill (73), p. 677. S. 
Tolerably common in black mud, 3-4 fath. 
