804 
bulletin of the bureau of fisheries. 
Order SIPHONALES. 
Codiolum gregarium A. Braun. (Taxonomic posi- 
tion uncertain.) 
Common in its localities, attached to rocks and 
barnacles ( Balanus ). 
Woods Hole: Outermost rocks of Grassy Ledge. 
Summer. 
P. B.-A., fas. iv, no. 165, Woods Hole, July, 1895 
(C. P. Nott). 
Family BryopsidacE^E. 
Bryopsis hypnoides Lamouroux. 
Occasional. 
Woods Hole: Entrance of Eel Pond. Wharves, 
New Bedford (G. M. Gray). Mattapoisett 
(Collins). 
Spring. 
Collins, 1906a, p. 124, Mattapoisett, May, 1905. 
P. B.-A., fas. xxvi, no. 1286, Mattapoisett, May 
28, 1905 (F. S. Collins). 
Bryopsis plumosa (Hudson) Agardh. 
Occasional, on stones and in sand, on woodwork 
of wharves. 
Woods Hole: Grassy Ledge, entrance of Eel 
Pond, Gut of Canso, Government wharves Lit- 
tle Harbor. 
Summer. 
Farlow, 1873, p. 292, Woods Hole. 
Family Derbesiace^E. 
Derbesia vauchericeformis (Harvey) J. Agardh. 
Rare. 
Woods Hole: Entrance to Eel Pond (Farlow), 
Edgartown (Jemegan). 
May, 1876 (Farlow), December, 1895 (Jernegan). 
Farlow, 1881, p. 60, Woods Hole. 
P. B.-A., fas. vii, no. 318, Edgartown, December, 
1895 (M. W. Jemegan). 
Family Vaucheriace^. 
Vaucheria litorea Agardh. 
Common, over gravel near low- water mark. 
Woods Hole: Juniper Point. 
Summer. 
Farlow, 1876, p. 712 ( Vaucheria piloboloides 
Thuret), Woods Hole (?); Farlow, 1881, p. 105, 
Woods Hole. 
Vaucheria Thuretii Woronin. 
Common, on mud between tide marks or below. 
Dredged once by the Survey, in Cuttyhunk 
Harbor (station 104), 2% to 3 fathoms, over 
muddy sand. 
Woods Hole: Eel Pond. Salt marshes Ouissett 
and Penzance. 
Buzzards Bay: Cuttyhunk Harbor, station 104, 
many. 
Summer. 
Class PMOPHYCEiE. 
Order PHAEOSPORALES. 
Family Ectocarpaceaj. 
Ascoclyclus orbicularis (J. Agardh) Magnus. 
Occasional, on Zostera. 
Woods Hole: Little Harbor (Setchell). 
July 25, 1895 (Setchell). 
P.B.-A., fas. iv, no. 173, Little Harbor, Woods 
Hole, July 25, 1895 (W. A. Setchell). 
Ectocarpus cecidioides Rosenvinge. 
Abundant, on old Laminaria. 
Woods Hole: Grassy Ledge, entrance to Eel 
Pond. 
Spring. 
Ectocarpus confervoides (Roth) Le Jolis. 
Very common, attached to Scytosiphon, Chorda- 
ria, and other larger algae, Zostera , and to wood- 
work of wharves. Dredged by the Survey in 
3 to 6 fathoms at several scattered stations, 
over sandy and stony bottoms. 
Ectocarpus confervoides— Continued. 
Woods Hole: Great Harbor, Eel Pond, Grassy 
Ledge, Little Harbor. 
Buzzards Bay: Inshore — Gull Island, station 116, 
many; Naushon 87, few. Drifted fragments, 
105 - 
Vineyard Sound: Westerly portion — 7735, few 
on Rhodomela subfusca. Inshore — Marthas 
Vineyard stations 64 and 67, many on Zostera; 
69, few on Zostera; 73 and 75, very many on 
Zostera. Drifted fragments, 7706 and 7710 on 
Chorda filum. 
Spring, summer, probably at all seasons. 
Ectocarpus elegans Thuret. 
Occasional, attached to larger algae. 
Edgartown, on muddy bottom attached to 
various algae, at 2 meters depth (Jemegan). 
December, 1896 (Jemegan). 
P.B.-A., fas. vii, no. 320, Edgartown, December, 
1896 (M. W. Jemegan). 
