BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 



707 



Family TURRITID^E. 



Mangilia bicarinata (Couthouy). 



Gould, 1870, p. 349 (Pleurotoma bicarinata; not 

 listed for this region); Yerrill and Smith, 1873, 

 p. 638, 418, etc. (Pleurotoma bicarinatum) . 



"Vineyard Sound, 6 to 12 fathoms, rare." Ver- 

 rill. 



Mangilia cerina (Kurtz & Stimpson). 



Stimpson, 1851 (Pleurotoma cerinum); Verrill, 

 1872; Verrill and Smith, 1873, p. 637, 432, etc.; 

 Verrill, i882C, p. 488; 18843, p. 250; Dall, 1889, 

 p. 102. 



Vineyard Sound, Buzzards Bay, Quissett. 

 Verrill. Dredged by the survey at Phalarope 

 stations 19* (Tarpaulin Cove), 124* (off Pen- 

 zance), 154* (mouth of Wareham River). 



Mangilia plicosa (Adams). 



Adams, 1840, p. 318 (Pleurotoma plicata); Gould, 

 1870, p. 350 (Pleurotoma plicata}; Verrill and 

 Smith, 1873, p. 637, 383, etc. (Bela plicata). 

 New Bedford, in mud. Adams. 



Drillia sp. 



A specimen referred to this genus by Messrs. Dall 

 and Bartsch was taken at Phalarope station 156. 



Bela harpularia Adams. 



Gould, 1870, p. 352 (not listed for this region); 

 Verrill and Smith, 1873, p. 636, 508; Verrill, 

 18823, p. 473; Dall, 1889, p. 98. 



Off Gay Head, 10 to 29 fathoms, on muddy bot- 

 tom, in 1871, 1880, and 1881. Verrill. 



Bela pleurotomaria Adams. 



Verrill and Smith, 1873, p. 637 (not specifically 



listed for this region); Verrill, i882C, p. 478. 

 Off Chatham, 16 fathoms, 1881. Verrill. 



Family FASCIOLARIID^. 



Busycon canaliculatum (Say). Conch shell; lo- 

 cally called "winkle." [Chart 164.] 



Gould, 1870, p. 380 (Fulgurcanaliculata); Verrill 

 and Smith, 1873, p. 640, 332, etc. (Sycotypus 

 canaliculatus); Dall, 1889, p. 112 (Fulgur ca- 

 naliculata); Mead, 1898 ("Sycotypus"). 



Abundant in shallower waters generally, the 

 shells being familiar on the beaches almost 

 everywhere. Fifty -one large specimens were 

 taken from three lobster pots in a single day by 

 Mr. Edwards. In the Survey dredging this 

 species was found to be pretty generally dis- 

 tributed throughout Buzzards Bay and Vine- 

 yard Sound, though somewhat commoner in 

 the former. Living specimens were dredged 

 in 2 to 12 fathoms, on quite various bottoms, 



Busycon canaliculatum Continued. 



though most frequently on muddy ones. The 

 shells were frequently occupied by the larger 

 hermit crabs. 



Fish Hawk stations: 7524 (i shell), 7525 bis (i 

 small shell), 7526 (2 shells), 7527 (i shell), 7535 

 (i fragment), 7543 bis (i), 7547 bis (i young 

 shell), 7553 bis (i small shell), 7572 (i shell and 

 fragments), 7602 (2 shells), 7611 (i living), 7612 

 (i shell), 7614 (fragment), 7617 (i shell and i 

 small living?), 7621 (i shell), 7622 (i shell), 7624 

 (i shell fragment), 7632 (several), 7633 (several 

 living), 7634 (few living and shells), 7636 (frag- 

 ment), 7637 (i living), 7638 (living and shells), 

 7641 (2 large living), 7644 (small shells), 7645 

 (several shells), 7646 (several small living), 

 7648 (several shells), 7650 (i), 7652 (i living), 

 7653 (living and shells), 7657 (i living), 7659 

 (i shell), 7660 (few shells and living), 7661 

 (few shells and living), 7662 (few living), 7663 

 (few living), 7664 (i shell), 7668 (i living and 

 shells), 7672 (i shell), 7673 (i shell), 7675 (i 

 shell), 7678 (2 living and few shells), 7696 (i 

 fragment), 7706 (i large shell), 7724 (many liv- 

 ing, large and small), 7728 (i living and i 

 shell), 7729 (i living), 7734 (i worn shell), 7735 

 (i living), 7739 (i shell), 7759 (small shell), 

 7761 (several living and few shells), 7762 (many 

 large shells and egg cases), 7767 (i shell), 7768 

 (i shell), 7769 (i shell), 7772 (i shell), 7778 (few 

 large shells). 



Phalarope stations: 2 (2 shells), 4 (i very large 

 shell), 6 (2 living), 17 (i large living), 19 (i 

 shell), 52 (i), 53 (i), 62 (i), 71 (few shells), 72 

 (i), 73 (i), 80 (i piece), 81 (i fragment), 82 (i 

 shell), 89 (i fragment), 93 (i shell), 94, 98, 101 

 (i shell), 109, 113 (i living), 119 (i living), 126 

 (shells), 131 (i living), 132 (i shell), 135, 137 (i 

 shell), 147 (i shell), 149 (few shells), 156 (2 

 shells), 158 (few shells and living), 163 (i 

 shell), 164 (i small shell), 165 (i living, i 

 shell), 1 66 (several small shells). 



Spawns in August. G. M. Gray. Egg strings 

 deposited as late as second week in Septem- 

 ber. Thompson. Egg strings containing 

 well-formed shells found in April. Mead. 

 The egg cases of this species, like those of B. 

 carica, are familiar objects upon the sea beach 

 in summer. Like those of the related species, 

 they consist of a string of disk-shaped capsules, 

 composed of a parchment-like material. For 

 an account of egg laying of Busycon canalicula- 

 tum and B. carica, see Verrill and Smith, 1873, 



P- 355- 



This species preys upon other mollusks and is 

 said to be very destructive to the oyster. 



