BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 
Cladophora flexuosa — Continued . 
Farlow, 1873, p. 293, Woods Hole Government 
wharf; Farlow, 1881, p. 54, Woods Hole; A. A. 
B. Ex., fas. v, no. 206, Woods Hole (W. G. 
Farlow). 
Cladophora fracta (Flora Danica) Kiitzing. 
Rare, in brackish water. 
Woods Hole: Eel Pond Creek (Setchell). 
August, 1904 (Setchell). 
Farlow, 1873, p. 293, Woods Hole; A. A. B. Ex., 
fas. v, no. 208, Falmouth, 1881 (W. G. Farlow); 
specimens in the herbarium of the Marine 
Biological Laboratory collected by W. A. 
Setchell. 
Cladophora glaucescens (Griffiths) Harvey. 
Common, attached to rocks and woodwork of 
wharves below low water. 
Woods Hole: Harbor wharves, Juniper Point; 
Government wharf Little Harbor, Gut of 
Canso. 
Summer. 
A. A. B. Ex., fas. v, no. 205, Woods Hole, Au- 
gust, 1881 (W. G. Farlow). 
Cladophora gracilis (Griffiths) Kiitzing. 
Abundant, attached to wharves and stones be- 
low low-water mark, sometimes on Zostera. 
Dredged by the Survey over sand and gravel in 
2 to 5X fathoms. 
Woods Hole: Harbor walls, basins of Bureau of 
Fisheries, Grassy Ledge, Juniper Point. 
Buzzards Bay : Inshore — Cuttyhunk, station 
104, few; Nashawena 79, few; Uncatena 117, 
few. 
Vineyard Sound: Inshore — Tarpaulin Cove, sta- 
tion 17, few on Zostera; Robinsons Hole 20 and 
21, few; Pasque 24 and 25, few. Drifted frag- 
ments, 7543 bis and 7570. 
Summer. 
Farlow, 1881, p. 55, Woods Hole; A. A. B.Ex., 
fas. v, no, 209, Falmouth, 1881 (W. G. Farlow). 
Cladophora hirta Kiitzing. 
Occasional, on rocks below low water. 
Woods Hole : Juniper Point. 
Summer. 
Cladophora lanosa (Roth) Kiitzing. 
Occasional, attached to larger algae below low- 
water mark, floating in Vineyard Sound at- 
tached to Ascophyllum nodosum and goose bar- 
nacles ( Lepas ). 
Woods Hole: Steamboat wharf. Grassy Ledge, 
Juniper Point. 
At all seasons. 
803 
Cladophora lanosa var. uncialis (Flora Danica) 
Thuret. 
Common, on stones and rocks, above and below 
low- water mark. 
Woods Hole: Grassy Ledge (Miss MacRae). 
Vineyard Sound. 
December, 1904, April and May, 1905 (Miss 
MacRae, Grassy Ledge). Summer (Vineyard 
Sound). 
Cladophora refracla (Roth) Areschoug. 
Abundant, attached to stones near low-water 
mark. 
Woods Hole. 
Summer. 
A. A. B. Ex., fas. v, no. 207, Woods Hole, August, 
1881 (W. G. Farlow). 
Cladophora Rudolphiana (Agardh) Harvey. 
Abundant, attached to stones and Zostera, below 
low- water mark. 
Woods Hole : Little Harbor. 
Summer. 
Farlow, 1873, p. 292, Woods Hole; Farlow, 1881, 
p. 54 > 55 > Woods Hole. 
Cladophora rupestris (Linnaeus) Kiitzing. 
Occasional, attached to rocks below low-water 
mark. 
Woods Hole: Nobska Point. Gay Head. 
Early summer. 
Farlow, 1873, p. 292, Gay Head, Vineyard Sound. 
Rhizoclonium Kerneri Stockmayer. 
Occasional. 
Woods Hole (Setchell). 
August, 1894. 
Known only from specimen in herbarium of the 
Marine Biological Laboratory collected by 
W. A. Setchell. 
Rhizoclonium riparium (Roth) Harvey. 
Common, on sand and rocks between tide marks, 
woodwork of wharves. 
Woods Hole: Grassy Ledge, Government wharf 
Little Harbor. 
Summer. 
Farlow, 1881, p. 49, Woods Hole; A. A. B. Ex., 
fas. v. no. 2x3, Woods Hole (W. G. Farlow). 
Rhizoclonium tortuosum Kiitzing. 
Occasional, growing over other algae in quiet 
waters. 
Woods Hole. 
Summer. 
Farlow, 1873, p. 293 ( Chcetomorpha tortuosa 
Dillwyn), Woods Hole. 
