692 



BULLETIN OF THE BUREAU OF FISHERIES. 



Cyclas islandica Continued. 



shells), 7673 (i living), 7678 (numerous shells), 

 7680 (2 shells), 7682 (i shell), 7686 (i shell), 

 7702 (many shells), 7706 (several large shells), 

 7709 (i shell), 7722 (2 small shells), 7730 (i 

 shell), 7731 (several shells). 



Phalarope stations: 62 (i), 78 (i living), 100 (i 

 living). 



Family 



Venus mercenaria Linnaeus. Quahog, round 

 clam, hard clam, Little Neck clam. [Chart 



I4S-] 

 Gould, 1870, p. 133 (Venus mercenaria), p. 135 



(Venus notata); Verrill and Smith, 1873, p. 

 681, 359, etc.; Ball, 1889, p. 54. 



Littoral distribution general throughout the 

 region. Abundant in sand or mud, just below 

 low-tide level, especially in harbors, estuaries, 

 or other sheltered places, where it is also 

 taken at depths of several fathoms. Shells, 

 and occasionally living specimens, dredged by 

 the Survey throughout the length of Buzzards 

 Bay; much less frequent in Vineyard Sound. 

 Shells recorded from depths of 2 to 13 fathoms, 

 most frequently in mixtures of mud and sand ; 

 living specimens taken in depths as great as 6 

 fathoms, though rarely found within the field 

 of the dredging operations. 



Fish Hawk stations: 7537 bis (few shells), 7564 

 bis(i large shell), 7610(1 shell), 7612 (few small 

 shells), 7613, 7615 (few small shells), 7616 (sev- 

 eral large shells), 7617 (2), 7618 (i shell), 7619 

 (few shells), 7620 (several shells), 7621 (many 

 shells), 7622 (few shells), 7627 (several shells), 

 7636 (i young shell), 7639 (several fragments), 

 7640 (few shells), 7641 (few shells), 7642 (few 

 shells), 7643 (few shells), 7644 (several living 

 and shells), 7645 (i very small shell), 7646 (few 

 fragments), 7647 (few shells and living), 7648 

 (several shells), 7649 (i small shell), 7650 (few 

 shells), 7652 (few small), 7653 (few small 

 shells), 7654 (i small shell), 7655 (few shells), 

 7656 (few small shells), 7668 (few small shells), 

 7672 (few shells), 7674 (several shells), 7675 (i 

 large living and several small shells), 7679 (i 

 small shell), 7695 (few small shells), 7730 (i 

 large shell), 7736 (several fragments), 7760 (i 

 worn shell), 7762 (several shells), 7772 (very 

 much worn shell), 7778 (several large shells), 

 7783 (2 large shells). 



Phalarope stations: 5 (i large shell), 52 (few 

 shells), 53 (2 shells), 65 (few shells), 68 (i 

 shell), 71 (shells abundant), 72 (many shells 

 and i living), 78 (i small), 79 (i small), 80 (few 



Venus mercenaria Continued. 



shells), 81 (many shells), 82 (few shells), 85, 86, 

 89 (i shell), 93 (2 shells), 94, 95, 100, 101 (shells), 

 105 (shells), 107 (many living and shells), 108, 

 109, no, 113, 114 (i shell), 116, 119 (i small), 

 124 (shells), 125 (several shells), 127 (shells), 

 129 (common), 137 (i shell), 138 (i young 

 shell), 139, 142 (i shell), 149 (i), 154 (i small), 

 155 (many shells), 156 (few shells, i living), 

 157 (several shells), 162 (2 shells), 163 (i shell), 

 164 (few shells), 165 (i large shell), 166 (i 

 shell), 167 (many shells). 



Gemma gemma (Totten.) a 



Gould, 1870, p. 137; Verrill and Smith, 1873, p. 

 682, 359, etc. (Tottenia gemma); Dall, 1889, 

 p. 56. 



Newport Harbor. Totten, cited by Gould. 

 Buzzards Bay, Vineyard Sound, Nantucket. 

 Verrill. Katama Bay*, West Falmouth Har- 

 bor*. (Osburn and Cole, collectors). Shells 

 found in enormous numbers by Mr. Edwards 

 on beach at Waquoit Bay, February 17, 1909, 

 where they had been washed ashore. Accord- 

 ing to Verrill this species is "peculiar to sandy 

 shores, both above and below low- water mark, 

 and it often occurs in immense numbers on 

 the sandy flats laid bare by the tides. " Rarely 

 met with in the Survey dredgings, though 

 (shells only ?) were taken on a few occasions, 

 in one case at a depth of 14 fathoms. 



Fish Hawk stations: 7726*, 7755*, Phalarope sta- 

 tion 19*. 



Callocardia morrhuana (Linsley). [Chart 146.] 

 Gould, 1870, p. 131 (Cytherea convexa); Verrill 

 and Smith, 1873, p. 681, 432, etc. (Callista 

 convexa); Dall, 1889, p. 56 (Cytherea convexa). 

 Shells taken in abundance throughout Buzzards 

 Bay, and in certain portions of Vineyard 

 Sound; records for the living animals chiefly 

 confined to the Bay. Survey. Living speci- 

 mens dredged in 2 to 15 fathoms, most fre- 

 quently on bottoms containing mud. 

 Fish Hawk stations: 7537 bis (i shell), 7543 (i 

 shell), 7543 bis (i shell and fragment), 7546 

 bis (few shells), 7548 (several shells), 7554 (i 

 shell), 7555 (i), 7558 (many shells), 7559 (few 

 shells), 7560 (i shell), 7567 (2 shells)*, 7568 

 (few shells), 7569 (i shell), 7571 (i shell), 7572 

 (few shells), 7574 (i shell), 7576 (several shells), 

 7577 (several shells), 7578 (several shells), 7581 

 (few shells), 7583 (few shells), 7584 (i living), 

 7585 (several shells), 7592 (few small shells), 

 7594 (several large shells), 7598 (i shell), 7600 

 (i shell), 7602 (few shells), 7610 (i shell), 7611 



" Verrill and Smith, 1873, also list a " Tottenia manhattensis." which they are not sure is distinct from T. gemma. 



