726 



BULLETIN OF THE BUREAU OF FISHERIES. 



Polynices hcros Continued. 



7720 (few shells), 7722 (i large shell), 7725 (i 

 shell), 7726 (many shells), 7727 (2), 7730 (sev- 

 eral), 7731 (few shells), 7732 (2 shells), 7733 (2 

 shells), 7734 (many living and shells), 7735 (i 

 shell), 7736 (several shells), 7739 (several 

 shells), 7740 (i living and few shells), 7741 (few 

 shells), 7745 (i small fragment), 7757 (i large 

 shell), 7759 (i shell), 7760 (few), 7761 (few 

 shells), 7762 (few shells), 7766 (few shells), 

 7767 (2 shells), 7769 (i large shell), 7772 (sev- 

 eral shells), 7773 (i shell), 7774 (2 large shells), 

 7777 (several shells), 7778 (few shells), 7780 

 (several shells), 7783 (several shells). 



Phalarope stations: 3 (i shell), 5 (i large shell), 

 7 (few shells), 8 (i), 9 (i fragment), 10 (i frag- 

 ment), ii (i fragment), 13 (i fragment), 15 (i 

 shell), 17 (i shell), 18 (2 shells), 25 (i shell), 30 

 (i shell), 52 (few shells)*, 53 (few shells), 57*, 

 59 (shells common), 60 (i shell), 61 (several 

 shells), 64 (i shell), 65 (few shells), 66 (few 

 shells), 68 (few shells), 71 (several living and 

 shells), 74 (2 shells*, i living), 76 (several 

 shells), 77 (i), 96*, 102 (i shell), in*, 117 (i 

 shell), 118 (i shell), 122 (i shell), 131, 140 (i 

 shell), 158 (i shell). 



The "sand collars" of this and the preceding 

 species are cast up on the beaches throughout 

 the summer. They are likewise frequently 

 dredged in Vineyard Sound. 



This and the preceding species feed upon various 

 mollusks, whose shells they perforate by means 

 of the lingual ribbon. 



Polynices triseriaia (Say). [Chart 188.] 



Gould, 1870, p. 340 (Lunatia triseriata); Verrill, 

 1872, p. 282 (Lunatia heros, var. triseriata); Ver- 

 rill and Smith, 1873, p. 646, 354, etc. (Luna- 

 tia heros, var. triseriata); Ball, 1889, p. 154 

 (Lunatia heros, var. triseriata. Dr. Dall now 

 regards this as a true species). 



Abundant and of pretty general distribution, 

 both in Vineyard Sound and Buzzards Bay; 

 far commoner in the latter than P. heros, but 

 somewhat less frequent in the former. Sur- 

 vey. Living specimens dredged in i to 12 

 fathoms, on various bottoms, including muddy 

 ones; shells widely distributed by hermit 

 crabs. Verrill's statement that this ' ' variety ' ' 

 "is the more common form in the deeper 

 waters" (i. e. commoner than P. heros) does 

 not hold for the region dredged. 



a See note under Polynices heros. Certain records for the 

 believed to be true. 



Polynices triseriata Continued. 



Fish Hawk stations: 7521 bis, 7523 bis(i), 7525 

 bis (i shell), 7532 bis (i living), 7536 bis (i 

 shell), 7537 bis (2 shells), 7541 bis (i shell), 

 7545 bis (i living), 7546 bis (few shells), 7549 

 bis (i shell), 7553 bis (i shell), 7554 bis (living 

 and i shell), 7557 (i), 7563 (3), 7564 bis (i 

 small shell), 7567 bis, 7574 (i), 7576 (i shell), 

 7584 (i), 7585 (i), 7586 (few), 7604 (i small), 

 7608 ( ?), 7614 (several living), 7616 (few shells), 

 7617 (few shells), 7620 (i living), 7630 (few liv- 

 ing and shells), 7633 (?), 7638 (few shells), 7640 

 (i shell), 7643 (few shells), 7644 (few living 

 and shells), 7645 (few shells), 7648 (i shell), 

 7650 (i living), 7652 (i), 7654 (i shell), 7657 

 (few shells), 7660 (several shells), 7661 (sev- 

 eral shells), 7662 (several shells), 7663 (few 

 shells), 7664 (i living), 7665 (i shell and i liv- 

 ing), 7666 (i shell), 7668 (fragment), 7669 (i 

 shell), 7671 (several shells), 7672 (several living 

 and shells), 7673 (few shells), 7674 (i much- 

 worn shell), 7675 (few shells), 7677, 7678 (sev- 

 eral shells), 7679 (i shell), 7680 (i shell), 7681 

 (few shells), 7685 (i small living), 7687 (2 living 

 and shells), 7688 (fragments), 7702 (i shell), 

 7706 (i shell), 7707 (2 shells), 7718 (r shell), 

 7719 (few shells), 7720 (i small shell), 7722 

 (several shells), 7724 (3 living), 7728 (i small 

 living), 7729 (i small living), 7731 (few shells), 

 7732 (several shells), 7740 (i shell), 7744 (frag- 

 ments and i shell), 7751 (i shell), 7759 (i shell), 

 7766 (2 shells), 7780 (i shell). 

 Phalarope and Blue Wing stations: 5 (i shell), 

 6 (several shells and living), 7 (several shells), 

 ii (2), 15 (2), 19 (living abundant), 20 (few), 

 22 (few shells), 23 (few), 28 (several), 30 (i), 

 32 (i), 33 (i shell), 35 (i shell), 36 (i shell), 

 48 (i), 49 (shells), 51 (few living), 52 (several 

 living and shells), 53 (i living), 56 (few living), 

 57 (few shells), 58, 59 (shells common), 60 (liv- 

 ing and few shells), 62 (i living and shells), 64 

 (several shells), 65 (several shells), 66, 67 (few 

 shells), 68 ( i living, few shells), 73 (i), 74 (few 

 living and shells), 76 (few living and shells), 

 77 (i shell), 78 (few), 79 (2 shells), 80 (i shell), 

 81 (few), 83 (living and shells common), 89, 91, 

 92 (shells), 100 (living), 101, 102, 104, 106, 108, 

 no, in (many living and shells), 112, 113, 114 

 (few living and shells), 115 (few shells), 117 

 (i shell), 118 (i living and i shell), 122 (sev- 

 eral shells), 123 (living and shells common), 

 128 (i shell), 132 (i shell), 136, 140 (few shells), 

 162 (i shell), 163 (i shell), 

 latter perhaps apply to the present species. The converse is not 



