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^. 



Bryopsis hypnoides Lamouroux. 

 Occasional. 

 Woods Hole: Entrance of Eel Pond. Wharves, 



New Bedford (G. M. Gray). Mattapoisett 



(Collins). 

 Spring. 



Collins, 19063, 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. 



Class 



Family DERBESIACE^E. 



Derbesia vaucheritzformis (Harvey) J. Agardh. 

 Rare. 

 Woods Hole: Entrance to Eel Pond (Farlow), 



Edgartown (Jernegan). 



May, 1876 (Farlow), December, 1895 (Jernegan). 

 Farlow, 1881, p. 60, Woods Hole. 

 P. B.-A., fas. vii.no. 318, Edgartown, December, 



1895 (M. W. Jernegan). 



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 Quissett 



and Penzance. 

 Buzzards Bay: Cuttyhunk Harbor, station 104, 



many. 

 Summer. 



Order PHAEOSPORALES. 



Family ECTOCARPACE.^. 



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 acidioides 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 co nfervoides 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 (Jernegan). 

 December, 1896 (Jernegan). 

 P. B.-A., fas. vii, no. 320, Edgartown, December, 



1896 (M. W. Jernegan). 



