BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 
801 
Enteromorpha linza (Linnaeus) J. Agardh. 
Common, attached to stones and woodwork of 
wharves, near low-water mark and below. 
Woods Hole: Great Harbor, Little Harbor. 
Black Rock. 
Summer. 
Enteromorpha minima Nageli. 
Common, attached to rocks near high-tide mark. 
Woods Hole: Stone harbor walls, Grassy Ledge. 
Summer. 
Enteromorpha percursa ("Agardh) J. Agardh. 
Common, in pools and ditches, floating in large 
masses frequently mixed with other species of 
Enteromorpha. 
Woods Hole: Eel Pond, brackish pools and 
ditches of Penzance. 
Summer. 
Enteromorpha plumosa Kxitzing. 
Common, in quiet waters, attached to Zostera. 
Woods Hole. 
Summer. 
Synonym: Enteromorpha Hopkirkii McCalla of 
Collins’ (1900) list. 
Enteromorpha prolifera (Flora Danica) J. Agardh. 
Common, in pools and ditches of salt marshes, in 
floating masses mixed with Cladophora, also on 
rocks. Dredged once by the Survey, Hog 
Island Harbor (station 135) in t° 5 fathoms, 
over sand and gravel. 
Woods Hole: Ditches of Penzance. Black Rock 
Buzzards Bay: Inshore — Hog Island Harbor, sta- 
tion 135, few. 
Vineyard Sound: Inshore — Gay Head, stations 
50 and 51, many on rocks. 
Summer. 
Ilea fulvescens (Agardh) J. Agardh. 
Occasional, on stones at low-water mark. 
Woods Hole: Little Harbor (Setchell). 
July 31, 1895. 
Known only from specimens in the herbarium of 
the Marine Biological Laboratory collected by 
W. A. Setchell. 
Monostroma crepidinum Farlow. 
Occasional, on piles of wharves between tide 
marks. 
Woods Hole: Government wharves Little Har- 
bor (Farlow). Head of Vineyard Haven 
(Setchell). 
August (Farlow), August 14, 1892 (Setchell). 
Farlow, 1881, p. 42, Government wharf, Woods 
Hole; A. A. B. Ex., fas. iv, no. 174, Woods 
Hole (W. G. Farlow); P. B.-A., fas. v, no. 220, 
head of Vineyard Haven, August 14, 1892 (W. 
A. Setchell). 
Monostroma Grevillei (Thuret) Wittrock. 
Abundant, on stones and larger alga; near low- 
water mark. 
Woods Hole: Little Harbor. 
Spring. 
Protoderma marinum Reinke. (Taxonomic posi- 
tion uncertain.) 
Very common, on pebbles, especially in quiet 
waters, forming a green coating. 
Woods Hole. Quisset. Tarpaulin Cove. 
At all seasons. 
Ulva Lactuca Linnaeus. Sea-lettuce. 
Common, attached to rocks, wharves, and alga;, 
above and below low water. 
Woods Hole. 
Buzzards Bay: Drifted fragments, stations 7645, 
84, 161, 165. 
Vineyard Sound: Drifted fragments, stations 49, 
60. 
At all seasons. 
Ulva Lactuca var. latissima (Linnaeus) De Can- 
dolle. 
Common, floating in quiet, shallow water. 
Woods Hole: Little Harbor, Eel Pond, ditches 
on Penzance. 
Summer. 
P. B.-A., fas. d, no. lxxvi, Eel Pond, Woods 
Hole, August 16, 1904 (F. S. Collins). 
Ulva Lactuca var. rigida (Agardh) Le Jobs. 
Common, on rocks exposed to the action of waves, 
above low- water mark. 
Woods Hole: Harbor walls, Grassy Ledge, Juni- 
per Point, Government wharves Little Har- 
bor. Black Rock. 
Buzzards Bay: Drifted fragments, stations 7629, 
113 - 
Vineyard Sound: Gay Head, stations 50 and 
51, many. 
At all seasons. 
Family Ch43Topiiorace^J. 
Acrochcete repens Pringsheim. 
Common, epiphytic in base and middle regions 
of Chorda filum, among the paraphyses and 
sporangia. 
Woods Hole. 
Summer. 
Collins, 1906a, p. 124, Woods Hole, September 1, 
1905; P. B.-A., fas. xxvi, no. 1279, Woods 
Hole, September 1, 1905 (F. S. Collins). 
Bulbocoleon piliferum Pringsheim. 
Common, on Leatkesia and Chordaria. 
Woods Hole. 
Summer. 
Farlow, 1881, p. 57, Woods Hole. 
