BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 



701 



Corbula contracta Continued. 



( i shell), 7701 (few shells), 7702 (i living and 

 several shells), 7703 (several shells), 7705 (i 

 shell), 7706 (i shell), 7707 (i shell), 7718 (few 

 shells), 7719 (2 shells), 7720 (i shell), 7723 (sev- 

 eral shells), 7724 (i shell), 7726 (few shells), 

 7732 (many shells), 7733 (few shells), 7734 (few 

 shells), 7735 (several shells), 7740 (i shell), 

 7741 (i shell), 7744 (few shells), 7748 (i shell), 

 7756 (i shell), 7758 (i shell), 7764 (several 

 shells), 7767 (few shells), 7769 (several shells), 

 7770 (few shells), 7771 (i shell), 7772 (few 

 shells), 7776 (i 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 (i living), 6 (i shell), n (i 

 shell), 15, 28 (few shells), 29 (i), 33 (few 

 shells), 34 (several shells), 35 (few shells), 43 

 (shells), 52 (i shell), 57 (i shell), 58 (i shell), 

 59 ( i shell), 65 (several shells), 78 (i shell), 81, 

 83 (few shells), 84, 86, 91, 96, 98, 100 (shells), 

 102, 108, no, in (i shell), 113, 115 (shells), 

 116, 117 (2 shells), 118 (i shell), 120(1 living 

 and shells), 121 (few shells), 122 (few shells), 

 123 (living and shells), 126 (shells), 128 (i 

 shell), 131 (i shell), 134 (i shell), 138, 140 (few 

 shells), 141 (few shells), 144 (i shell), 147 (few 

 shells), 150 (i shell), 160 (i worn shell?), 163 (i 

 shell), 164 (i shell), 167 (i shell, i living). 



Family MYACID^E. 



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.; Dall, 1889, p. 70; Bumpus, 

 iSgSb, 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 (r shell), 7639 (? i 

 shell), 7645 (several shells), 7698 (? small), 

 7702 (? i small). 



Phalarope stations: 53 (few shells), 127 (shells), 

 137 (i), 146 (i shell), 149 (r shell), 150 (i shell), 

 154 (i fragment), 155 (few shells), 156 (few 

 shells), 157 (few shells), 164 (i shell), 165 (i 

 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 (i small shell), 7572 



(i living)*, 7603 (several living), 7606 (many), 



7608 (several), 7609 (2 living), 7718 (i shell). 

 Phalarope stations: i (i 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^. 



P 'ho las costata Linnaeus. 



Gould, 1870, p. 37; Verrill and Smith, 1873, p. 

 670, 433; Dall, 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 iruncata Say. 



Gould, 1870, p. 38; Verrill and Smith, 1873, p. 

 670, 372, 433, etc.; Dall, 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, \\-r- 

 rill states that is "quite common in mud and 

 peat-banks, above low-water mark." 



Zirphaa crispata (Linnaeus). 



Verrill and Smith, 1873, p. 671, 433; Dall.. 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 



