BIOLOGICAL SURVEY OP WOODS HOLE AND VICINITY. 
701 
Corbula contracta — Continued. 
(1 shell), 7701 (few shells), 7702 (1 living and 
several shells), 7703 (several shells), 7705 (1 
shell), 7706 (1 shell), 7707 (1 shell), 7718 (few 
shells), 7719 (2 shells), 7720 (1 shell), 7723 (sev- 
eral shells), 7724 (1 shell), 7726 (few shells), 
7732 (many shells), 7733 (few shells), 7734 (few 
shells), 7735 (several shells), 7740 (1 shell), 
7741 (1 shell), 7744 (few shells), 7748 (1 shell), 
7756 (1 shell), 7758 (1 shell), 7764 (several 
shells), 7767 (few shells), 7769 (several shells), 
7770 (few shells), 7771 (1 shell), 7772 (few 
shells), 7776 (1 shell), 7777 (several shells), 
7778 (many shells), 7779 (many shells), 7780 
(shells common), 7781 (few living and shells), 
7782 (few shells), 7783 (many shells). 
Phalarope stations: 2 (1 living), 6 (1 shell), 11 (1 
shell), 15, 28 (few shells), 29 (1), 33 (few 
shells), 34 (several shells), 35 (few shells), 43 
(shells), 52 (1 shell), 57 (1 shell), 58 (1 shell), 
59 (1 shell), 65 (several shells), 78 (1 shell), 81, 
83 (few shells), 84, 86, 91, 96, 98, 100 (shells), 
102, 108, no, hi (1 shell), 113, 115 (shells), 
116, 117 (2 shells), 118 (1 shell), 120(1 living 
and shells), 121 (few shells), 122 (few shells), 
123 (living and shells), 126 (shells), 128 (1 
shell), 131 (1 shell), 134 (1 shell), 138, 140 (few 
shells), 141 (few shells), 144 (1 shell), 147 (few 
shells), 150 ( 1 shell), 160 (1 worn shell?), 163 (1 
shell), 164 (1 shell), 167 (1 shell, 1 living). 
Family Myacidai. 
Mya arenaria Linnaeus. Long clam, soft-shelled 
clam. (Locally called simply “clam,” the 
latter term seldom being applied to Venus). 
[Chart 160.] 
Gould, 1870, p. 55; Verrill and Smith, 1873, p. 
672, 309, 463, etc.; Dali, 1889, p. 70; Bumpus, 
1898b, p. 857. 
Abundant and of very general distribution along 
the sandy and muddy shores of the region, par- 
ticularly where the water is somewhat brack- 
ish. The clam does not occur much below 
low-tide mark; hence it is comparatively in- 
frequent in the dredging records. Shells occa- 
sionally dredged by the Survey in 2 to 13 fath- 
- oms, chiefly at depth of 5 fathoms or less. 
Fish Hawk stations: 7614 (1 shell), 7639 (? 1 
shell), 7645 (several shells), 7698 (? small), 
7702 (? 1 small). 
Phalarope stations: 53 (few shells), 127 (shells), 
137 (1), 146 (1 shell), 149 (1 shell), 150 (1 shell), 
154 (1 fragment), 155 (few shells), 156 (few 
shells), 157 (few shells), 164 (1 shell), 165 (1 
shell). 
Family Saxicavid^. 
Saxicava arctica Deshays. 
Gould, 1870, p. 89 (not listed for this region); 
Verrill and Smith, 1873, p. 671, 309, etc. 
(No specific local records). 
Vineyard Sound, at 5 stations; Crab Ledge, at 4 
stations; 4 to 25 fathoms, gravel and stones. — 
Survey. 
Fish Hawk stations: 7532 bis (1 small shell), 7572 
(1 living)*, 7603 (several living), 7606 (many), 
7608 (several), 7609 (2 living), 7718 (1 shell). 
Phalarope stations: 1 (1 shell), 62. 
Cyrtodaria siliqua (Spengler). 
Crab Ledge, at Fish Hawk stations 7603*, 7604, 
and 7608; 17 to 20 fathoms, sand and gravel. 
Shells only were taken. 
Family Pholadid^e. 
Pholas costata Linnaeus. 
Gould, 1870, p. 37; Verrill and Smith, 1873, p. 
670, 433; Dali, 1889, p. 72 ( Barnea costata). 
New Bedford, dredged living. — Gould. Great 
Harbor, Woods Hole, dead shells. — Verrill. 
Mouth of New Bedford Harbor, at Fish Hawk 
stations 7646* and 7647*, fragments only. — 
Survey. Numerous large fragments found by 
Mr. Edwards on the beach at the south shore 
of Marthas Vineyard, just outside of Tisbury 
Great Pond*. Mr. G. M. Gray reports that 
this species is so scarce locally that he is obliged 
to send to Florida for specimens for the supply 
department. According to Gould, it lives 
buried in the mud to a depth of 2 or 3 feet. 
The specimens recorded by him were brought 
up by harbor dredging machines. 
Pholas truncata Say. 
Gould, 1870, p. 38; Verrill and Smith, 1873, p. 
670, 372, 433, etc.; Dali, 1889, p. 72 ( Barnea 
truncata). 
New Bedford. — Gould. Woods Hole in Great 
Harbor (dead shells). — Verrill. Buzzards Bay 
shore, near breakwater, on one occasion. — G. 
M. Gray. Like the preceding species, this 
mollusk buries itself so deeply in the mud 
that it is seldom taken with the dredge. Ver- 
rill states that is “ quite common in mud and 
peat-banks, above low-water mark.” 
Zirphcca crispata (Linnaeus). 
Verrill and Smith, 1873, p. 671, 433; Dali, 1889, 
p. 72. 
Great Harbor, Woods Hole; fragments of shells 
dredged by Verrill. Two living specimens 
dredged by the Survey near the Sound shore of 
