BIOLOGICAL, SURVEY OF WOODS HOLE AND VICINITY. 
707 
Family TurriTid^. 
Mangilia bicarinata (Couthouy). 
Gould, 1870, p. 349 ( Pleurotonia bicarinata; not 
listed for this region); Verrill 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, 1882c, p.488; 1884a, p. 250; Dali, 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. Dali 
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, 
1882a, p. 473; Dali, 1889, p. 98. 
Off Gay Head, 10 to 29 fathoms, on muddy bot- 
tom, in 1871, 1880, and 1881. — Verrill. 
Bela plcurotomaria Adams. 
Verrill and Smith, 1873, p. 637 (not specifically 
listed for this region); Verrill, 1882c, p.478. 
Off Chatham, 16 fathoms, 1881. — Verrill. 
Family Fasciglarud/t;. 
Busycon canaliculatum (Say). Conch shell; lo- 
cally called “winkle.” [Chart 164.] 
Gould, 1870, p. 380 {Fulgur canaliculata); Verrill 
and Smith, 1873, p. 640, 332, etc. ( Sycotypus 
canaliculatus); Dali, 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 (1 shell), 7525 bis (1 
small shell), 7526 (2 shells), 7327 (1 shell), 7335 
(1 fragment), 7543 bis (1), 7547 bis (1 young 
shell), 7553 bis (1 small shell), 7572 (1 shell and 
fragments), 7602 (2 shells), 7611 (1 living), 7612 
(1 shell), 7614 (fragment), 7617 (1 shell and 1 
small living?), 7621 (ishell), 7622 (ishell), 7624 
(1 shell fragment), 7632 (several), 7633 (several 
living), 7634 (few living and shells), 7636 (frag- 
ment), 7637 (1 living), 7638 (living and shells), 
7641 (2 large living), 7644 (small shells), 7645 
(several shells), 7646 (several small living), 
7648 (several shells), 7650 (1), 7652 (1 living), 
7653 (living and shells), 7657 (1 living), 7659 
(1 shell), 7660 (few shells and living), 7661 
(few shells and living), 7662 (few living), 7663 
(few living), 7664 (1 shell), 7668 (1 living and 
shells), 7672 (1 shell), 7673 (1 shell), 7675 (1 
shell), 7678 (2 living and few shells), 7696 (1 
fragment), 7706 (1 large shell), 7724 (many liv- 
ing, large and small), 7728 (1 living and 1 
shell), 7729 (1 living), 7734 (1 worn shell), 7735 
(1 living), 7739 (1 shell), 7759 (small shell), 
7761 (several living and few shells), 7762 (many 
large shells and egg cases), 7767 (1 shell), 7768 
(1 shell), 7769 (1 shell), 7772 (1 shell), 7778 (few 
large shells). 
Phalarope stations: 2 (2 shells), 4 (1 very large 
shell), 6 (2 living), 17 (1 large living), 19 (1 
shell), 52 (1), 53 (1), 62 (1), 71 (few shells), 72 
(1), 73 (1), 80 (1 piece), 81 (1 fragment), 82 (1 
shell), 89 (1 fragment), 93 (1 shell), 94, 98, 101 
(1 shell), 109, 113 (1 living), 119 (1 living), 126 
(shells), 131 (1 living), 132 (1 shell), 135, 137 (r 
shell), 147 (1 shell), 149 (few shells), 156 (2 
shells), 158 (few shells and living), 163 (1 
shell), 164 (1 small shell), 165 (1 living, 1 
shell), 166 (several small shells). 
Spawns in August. — G. M. Gray. Egg strings 
deposited as late as second week in Septem- 
ber. — Thompson. Egg strings containing 
w'ell-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. 
