BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 
601 
Membranipora flemingii Busk. [Chart 35.] 
Osburn, 1912, p. 231. 
Taken by the Survey at scattered stations 
throughout Vineyard Sound, incrusting shells, 
stones, and occasionally algae, at depths of 
from 3 to 19 fathoms. Common at Muskeget 
Channel, in 7 fathoms; Crab Ledge, in 14 to 20 
fathoms; off Sankaty Head, ESE-, 13 to 20 
fathoms (V. N. Edwards, col.). 
Fish Hawk stations: 7533 bis, 7538, 7544 bis, 
7683, 7723, 7726, 7748, 7768, 7770, 7775, 7776. 
Blue Wing station 46. 
Membranipora anrita Hincks. [Chart 36.] 
Osburn, 1912, p. 230. 
Taken by the Survey at a few stations in Vine- 
yard Sound, near both ends; also in lower half 
of Buzzards Bay; dredged in 7 to 15 fathoms, 
on bottoms of clear or muddy sand and gravel ; 
mainly incrusting shells and algae. Also 
taken in Muskeget Channel, 7 fathoms, Great 
Round Shoal and Crab Ledge. 
Fish Hawk stations: 7525, 7533 bis, 7723, 7725, 
7749' 7768, 7770, 7776. Supplementary sta- 
tions (1909): 7636, 7643, 7653, 7657, 7659, 7660, 
7672. 
Phalarope stations (supplementary, 1909): 83, 13 1. 
Membranipora tehuelcha (d’Orbigny). 
Osburn, 1912, p. 231. 
Common in Vineyard Sound, incrusting floating 
gulfweed; No Mans Land, on stranded gulf- 
weed. The only member of the genus noted 
upon gulfweed locally. 
Membranipora arciica (d’Orbigny). 
Osburn, 1912, p. 229. 
Crab Ledge, July 23, 1907, in 16 fathoms, two 
small colonies on shells; August 12, 1909, 
common on stones and shells. 
Membranipora arctica armifera (Hincks). 
Osburn, 1912, p. 229. 
Crab Ledge, in 16 fathoms, one colony on shell; 
August 12, 1909, several colonies on shells and 
stones. 
Family Cribriunid^. 
Cribrilina punctata (Hassall). [Chart 37.] 
Verrill and Smith, 1873, p. 713, 403 ( Eschari - 
p or a punctata)', Osburn, 1912, p. 232. 
Vineyard Sound, common. — Verrill. Taken by 
the Survey at scattered stations throughout 
Vineyard Sound, on stones and shells, but 
Cribrilina punctata — Continued. 
never abundant. Common, however, at vari- 
ous outlying points, e. g., Crab Ledge; off 
Sankaty Head, ESE., 13 to 20 fathoms (V. N. 
Edwards, col.); Muskeget Channel, 7 fathoms; 
Great Round Shoal fishing ground, 8 fathoms; 
a half mile SW. of Gay Head. 
Fish Hawk stations: 7522, 7538 bis, 7544 bis, 
7549 bis, 7582, 7585, 7717, 7723, 7726, 7748, 
7768. 
Blue Wing station 46. 
Cribrilina annulata (Fabricius). 
Osburn, 1912, p. 232. 
Crab Ledge in 18 fathoms, July 22, 1907, a small 
colony; August 12, 1909, several colonies; Nan- 
tucket Shoals. 
Family Porintidzg. 
Porina tubulosa (Norman). 
Osburn, 1912, p. 233. 
Muskeget Channel, July 22, 1907, rare on shells; 
Crab Ledge, July 23, 1907, and August 12, 
1909, rare on stones and shells; Nantucket 
Shoals. 
Family Microporelud^j. 
Microporella ciliata (Pallas). 
Osburn, 1912, p. 233. 
Taken yi mile SW. of Gay Head (a number of col- 
onies, on shells of Pecten magellanicus)-, east- 
ern end of Vineyard Sound, at Fish Hawk sta- 
tion 7766 (one good-sized colony on a pebble); 
off Gay Head, at Blue Wing station 46 (several 
colonies on shells of Pecten magellanicus)-, 
western shore of Buzzards Bay, at Phalarope 
station 167 (a few small colonies on shells of 
various sorts). Likewise taken at Crab Ledge, 
in 14 to 20 fathoms, on shells and pebbles, at 
Great Round Shoal fishing ground, in 8 fath- 
oms, on shells, and at Nantucket Shoals. 
Never taken in large numbers. 
Microporella ciliata stellata (Verrill). 
Osburn, 1912, p. 234. 
Taken in eastern end of Vineyard Sound at Fish 
Hawk stations 7521 and 7766; likewise at Crab 
Ledge, on stones and shells; common; off San- 
katy Head, ESE., 13 to 20 fathoms (V. N. Ed- 
wards, col.), common; Muskeget Channel, in 
7 fathoms, scarce; Great Round Shoal fishing 
ground, 8fathoms, common; Nantucket Shoals. 
