6l2 
BULLETIN OF THE BUREAU OF FISHERIES. 
Arbacia punctulata — Continued. 
(few spines), 7671 (spines), 7672 (1 small), 7673 
(spines), 7674 (few spines), 7678 (1 living), 7726 
(2 shells, and spines), 7727 (1 living), 7731 
(spines), 7732 (1 fragment and one spine), 7733 
(2 living), 7734 (few fragments and spines), 
7735 (few spines), 7736 (few spines), 7738 
(spines), 7739 (spines), 7740 (spines), 7744 
(spines and fragments), 7746 (spines), 7748 
(few spines), 7752 (spines), 7753 (few spines), 
7755 (f ew spines), 7756 (few spines), 7764 
(spines and fragments), 7766 (spines and frag- 
ments), 7767 (spines), 7769 (few spines), 7770 
(spines), 7771 (spines), 7772, (spines), 7776 
(1 small living and spines), 7777 (fragments), 
7778 (1 small living, spines, and fragments), 
7779 (fragments and spines), 7780 (spines), 7782 
(spines), 7783 (1 shell). Supplementary sta- 
tions (1909): 7624 (several small living), 7629 
(2 small), 7645 (few spines), 7659 (many small 
living), 7672. 
Phalarope and Blue Wing stations: 5 (1 spine), 7 
(1 spine), 8 (1 spine), 11 (1 spine), 13 (spines), 
17 (1 spine), 40 (1 spine), 41 (spines), 42 
(spines), 43 (spines), 44 (2), 45 (2), 52 (few), 65 
(1 spine), 73 (few spines), 78 (spines), 80 (few), 
81 (2 young), 82 (1), 83 (spines), 84 (1), 85 
(1 spine), 91 (spines), 92 (spines), 93 (spines), 
95 (spines), 96 (spines), 97 (spines), 98 (spines), 
108, no, 117 (spines), 118 (several young), 120, 
121 (spines), 123 (spines), 128 (living), 135 (few 
spines), 141 (spines), 149 (2 small), 154 (few 
spines), 162 (1 spine), 165 (1 spine), 167 (1 
small living). Supplementary stations (1909): 
79 (few spines), 83 (many spines), 146 (few 
spines). 
Yields ripe eggs during the latter part of June, 
throughout July, and a portion of August. — 
Bumpus. Dr. McClendon reports that Arbacia 
was “at the height of the breeding season” 
about August 1 (1908), and that “the ovaries 
began to degenerate about September 1.” 
Family Scuteeud^e. 
Echinarachnius parma (Lamarck). Sand dollar. 
[Chart 53.] 
Verrill and Smith, 1873, pp. 717, 362, etc.; 
Bumpus, 1898, 1898a, 1898b; Mead, 1898, p. 
703; Clark, 1904, p. 564; 1905, p. 8. 
Generally distributed throughout Vineyard 
Sound; particularly abundant in the western 
third; in Buzzards Bay, with one exception, 
only found near the mouth, living specimens 
dredged in 2 to 19 fathoms, generally upon 
bottoms of nearly pure sand. — Survey. Like- 
wise found on sandy shores at extreme low 
tide. — Verrill. 
Echinarachnius parma — Continued. 
Fish Hawk stations: 7521 (few dead), 7525 bis 
(several large and small), 7527 (few dead), 7528 
(few dead), 7531 (few dead), 7532 (2 small), 
7532 bis (1 small), 7533 (many, all sizes), 7533 
bis (many, 1 living), 7535 (1 small), 7536 (1 
small), 7536 bis (several small, dead), 7537 (1 
shell), 7537 bis (few dead), 7538 (several 
shells), 7538 bis (few fragments), 7541 (few 
dead), 7541 bis (several dead), 7542 (many 
living and dead), 7542 bis (numerous), 7543 
(many living and dead), 7543 bis (several), 
7544 (several dead), 7545 (1 shell), 7546 bis 
(many small, dead), 7547 bis (several small), 
7550 bis (few dead), 7551 (few), 7551 bis (1 
living, few shells), 7552 bis (several living and 
shells), 7553 (few shells, 1 living), 7553 bis 
(few), 7554 (many living and dead), 7554 bis 
(several living and shells), 7556 (few dead), 
7556 bis (many dead), 7557 (1 shell), 7558 (few 
shells), 7559 (several living), 7560 (several 
living and dead), 7563 (few dead), 7563 bis 
(few), 7564 (1 shell), 7564 bis (few dead), 7565 
(few living), 7565 bis (few dead), 7566 (many 
of all sizes, living and dead), 7567 (few living 
and dead), 7568 (several living), 7569 (many 
living), 7570 (few), 7574 (few living), 7575 
(many living), 7576 (many living), 7577 (few 
living), 7578 (many living), 7579 (many liv- 
ing), 7580 (1 living), 7582 (1), 7583 (several), 
7584 (many), 7585 (many living), 7586 (few 
living) 7588 (1 small), 7589 (many living), 7590 
(few), 7591 (few living), 7592 (few dead), 7593 
(many living), 7595 (few living), 7596 (several 
living and dead), 7597 (few living and dead), 
7599 (1 dead), 7600 (many living), 7602 (few), 
7666 (1 small), 7674 (1 fragment), 7676 (2 
living), 7677 (very many), 7678 (many living 
and dead), 7680 (several small living), 7681 
(several living and dead), 7682 (few small 
dead), 7686 (few living), 768,7 (many small), 
7694 (many small and large), 7695 (few living), 
7696 (few living and dead), 7698 (few living 
and shells), 7699 (few living and shells), 7700 
(very many living), 7701 (abundant, living 
and dead), 7702 (few small living and dead), 
7703 (few living and dead), 7704 (many living), 
7705 (few living), 7706 (many living), 7708 
(very many living), 7709 (very many living), 
7710 (many living), 7717 (many living and 
dead), 7718 (several), 7721 (few), 7722 (1 liv- 
ing), 7723 (1 living), 7724 (several very small, 
living), 7725 (2 living), 7726 (1 living, many 
small shells), 7727 (many living), 7728 (1 liv- 
ing, small dead), 7729 (several living), 7730 
(1 living, 2 shells), 7731 (1 shell), 7732 (1 small 
