698 



BULLETIN OF THE BUREAU OF FISHERIES. 



Spisula solidissima Continued. 



and few shells), 7772 (many shells), 7774 (few 

 large and medium shells), 7775 (few shells), 

 7776 (many large and medium shells), 7777 

 (many shells), 7778 (many shells), 7779 (many 

 shells), 7780 (i living and many shells), 7781 

 (many shells), 7782 (many large and small 

 shells), 7783 (many large and small shells). 

 Phalarope and Blue Wing stations: i (several 

 shells), 2 (many shells), 3 (many shells), 4 

 (several shells), 6 (few shells), 7(1 shell), 9(1), 

 10 (i shell), 13, 15 (few shells), 25 (2 shells), 28 

 (i), 32 (i shell), 33 (2 small), 34 (few), 37 (i 

 shell), 38 (i living), 39 (few dead), 41 (few 

 shells), 42 (few shells), 51 (several living), 52 

 (many shells), 55 (few shells), 57 (i), 60 (few 

 small shells), 61 (several shells), 62 (several 

 shells), 65 (i shell), 66 (many small shells), 67 

 (few shells), 68 (several shells), 69 (i shell), 71 

 few shells), 72 (few shells), 76 (few shells), 81, 

 82 (shells), 89, 90, 91, 93 (i shell), 95, 99 

 (shells), 100 (shells), 101, 102, 103, 105 (living), 

 106, 107 (few shells), 109, no, in (shells), 113, 

 115 (i shell), 118 (several shells), 120 (living 

 and shells), 122 (i shell), 123 (shells), 135 (i 

 shell), 137 (i shell), 142 (i), 167 (shells abun- 

 dant). 



Mulinia lateralis (Say). [Chart 154.] 



Gould, 1870, p. 77 (Mactra lateralis); Verrill and 

 Smith, 1873, p. 680, 373, etc.; Ball, 1889, p. 62 

 (Mactra lateralis). 



Living animals abundant throughout Buzzards 

 Bay, in 4 to 9 fathoms, nearly always in mud 

 or mixtures of mud and sand; shells occasion- 

 ally taken at the western end of Vineyard 

 Sound. Survey. Mr. Edwards found this 

 species living in great abundance at Tisbury 

 Great Pond. 



Fish Hawk stations: 7597 (shells), 7611 (many 

 living and shells), 7612 (many living and 

 shells), 7613 (many living and shells), 7614 

 (several living and shells), 7617 (several shells 

 and living), 7618 (several shells and living), 

 7619 (several living and shells), 7620 (few liv- 

 ing), 7621 (few living), 7622 (few living and 

 shells), 7623 (living), 7624 (few shells), 7629 

 (few shells), 7630 (many small shells), 7631 

 (many shells), 7632 (few shells), 7636 (few 

 shells), 7637 (many living and shells), 7638 

 (several shells), 7640 (several shells), 7641 

 (very many living and shells), 7642 (many liv- 

 ing and shells), 7644 (several living and shells), 

 7645 (few shells), 7646 (few shells), 7647 (few 

 shells), 7649 (shells common), 7650 (numer- 

 ous shells), 7651 (few shells), 7652 (few shells), 

 7653 (few shells), 7654 (many shells), 7655 



Mulinia lateralis Continued. 



(few shells), 7657 (many living and shells), 7658 

 (living and shells), 7659 (numerous shells), 

 7660 (many shells), 7661 (many shells), 7662 

 (few shells), 7663, 7668 (several shells), 7669 

 (many shells), 7673 (few shells), 7674 (few 

 shells), 7675 (few shells), 7680 (i shell), 7681 

 (i small shell), 7 696 (few shells), 7697 (i shell)*, 

 7700 (shells), 7701 (2 shells), 7703 (i shell), 

 7704 (2 shells), 7706 (i shell), 7726. 



Phalarope stations: 43 (shells), 52 (few shells), 

 80 (few shells), 8r (few), 89, 90, 91, 92, 93 (sev- 

 eral living), 94, 95, 96, 98, 106, 107 (many liv- 

 ing and shells), 108, 109, no, 115 (several 

 shells), 124 (i living and shells), 136, 141 (i 

 shell), 143 (shells common), 154 (2 shells), 159 

 (few living and many shells), 160 (many 

 shells), 161 (many shells), 162 (few), 163 

 (several shells), 164 (few shells), 165 (many 

 shells), 166 (several shells). 



Verrill states that this species constitutes an 

 important item of the food of the scup and 

 some other fishes. 



Family MESODESMATID^E. 

 Mesodesma arctatum Conrad. 



Gould, 1870, p. 80 (Ceronia arctata); Verrill and 

 Smith, 1873, p. 679, 426, etc. (Ceronia arctata). 

 Nantucket, rare. Gould. 



Family THRACIID^J. 



Thracia conradi Couthouy. [Chart 155.] 



Gould, 1870, p. 69; Verrill and Smith, 1873, p. 

 673, 426, etc. ; Ball, 1889, p. 64. 



Buzzards Bay. Gould. Vineyard Sound. 

 Verrill. Shells dredged at the western end of 

 Vineyard Sound and one station near the 

 mouth of Buzzards Bay; 6 to 19 fathoms, on 

 sandy bottoms; no living specimens re- 

 corded. Survey. According to Verrill, this 

 mollusk buries itself 6 inches or more beneath 

 the surface of the sand. 



Fish Hawk stations: 7594 (2 shells)*, 7678 (i 

 broken shell), 7670(1 fragment), 7681 (2 shells), 

 7682 (2 shells), 7702 (i shell), 7706 (i shell), 

 7708 (i shell), 7724 (several large shells). 



Phalarope station 80 (i shell). 



Thracia septentrionalis Jeffreys. 



Gould, 1870, p. 72 (Thracia truncata); Verrill and 

 Smith, 1873, p. 674, 509, etc. (Thracia trun- 

 cata; not listed specifically for this region.) 



Off Marthas Vineyard. Agassiz, cited by Gould. 

 Crab Ledge and the western end of Vineyard 

 Sound; 6 to 19 fathoms. Survey. 



Fish Hawk stations: 7604 (2 broken shells)*, 

 7605 (i living)*, 7679 (i shell), 7706*. 



Phalarope station 65 (i shell). 



