BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 



799 



Family STIGONEMACE^. 



Mastigocoleus tesiarum Lagerheim. 

 Common, wherever old shells are found in quiet 



waters. 

 Woods Hole. 



Boring into clam and other shells. 

 Spring, summer, undoubtedly at all seasons. 

 P. B.-A., fas. v, no. 213, Quisset, July, 1893 and 



1895 (W. A. Setchell). 



Family SCYTONEMACE.^. 



Plectonema calothrichoid.es Gomont. 

 Common, on woodwork of wharves. 

 Woods Hole: Eel Pond, wharves of Bureau of 



Fisheries. 

 Spring. 



Family RIVULARIACE^. 



Amphithrix violacea (Kiitzing), Bomet & Flahault. 

 Common, on shells of Turritella. 

 Woods Hole: Eel Pond. 

 Summer. 

 Found by F. S. Collins, summer of 1904. 



Brachyirichia Quoyi (Agardh) Bornet & Flahault. 



Common in its localities, attached to Fucus. 



Woods Hole : Quisset Harbor. Hadley Harbor. 

 Hog Island Harbor (F. S. Collins). 



Summer. 



Farlow, 1876, p. 715 (Riuularia nitida (Agardh?), 

 Woods Hole; Farlow, 1881, p. 39 [Hormactis 

 Quoyi (Agardh) Bornet, in litt.], Woods Hole, 

 Falmouth; Collins, 1890, p. 175, Buzzards Bay 

 shore of Woods Hole, Quisset, and Hog Island 

 Harbors; A. A. B. Ex., fas. i, no. 45 (Hormactis 

 Farlowii Bornet), Woods Hole (W. G. Farlow); 

 A. A. D. Ex., fas. 25, no. 1197, Quamquisset 

 Harbor, August, 1891 (W. A. Setchell); P. 

 B.-A., fas. I, no. 8, Quamquisset Harbor, Fal- 

 mouth, August i, 1890 (W. A. Setchell). 



Probably introduced by ships that formerly 

 brought guano to Woods Hole from islands in 

 the Pacific. 



Calothrix teruginea (Kiitzing) Thuret. 

 Common, on woodwork of wharves, frequently 



mixed with Oscillatoria. 

 Woods Hole . 



Summer, undoubtedly at other seasons. 

 Found by F. S. Collins, summer of 1904. 



Calothrix confermcola (Dillwyn) Agardh. 



Common, on larger algae in quiet, shallow waters. 

 Dredged by the Survey in Vineyard Haven, 

 3 to 4 fathoms. 



16269 Bull. 31, pt 2 13 17 



Calothrix confervicola Continued. 



Woods Hole: Great Harbor, Eel Pond, Little 

 Harbor. Vineyard Haven: at station 72 on 

 Sphacelaria cirrhosa. 



Summer, undoubtedly at other seasons. 

 Farlow, 1873, p. 293, Woods Hole; Farlow, 1881, 



p. 36, Woods Hole; A. A. B. Ex., fas. v, no. 



225, Woods Hole (W. G. Farlow); P. B.-A., fas. 



i, no. 9, Woods Hole, July 12, 1892 (W. A. 



Setchell). 



Calothrix Crustacea Thuret. 



Common, on larger algae and rocks between tide 

 marks. 



Woods Hole: Great Harbor, Eel Pond, Little 

 Harbor. Black Rock. 



Summer, undoubtedly at other seasons. 

 Farlow, 1881, p. 36, Woods Hole; A. A. B. Ex., 

 fas. i, no. 49, Woods Hole (W. G. Farlow). 



Calothrix fusco-violacea Crouan. 



Common, on old Punctaria plantaginea, Zostera, 



and larger algae. 



Woods Hole: Grassy Ledge, Little Harbor. 

 Early summer. 

 Setchell, 1896, p. 87, Woods Hole, summer of 



1896; P. B.-A., fas. v, no. 217, Woods Hole on 



Punctaria plantaginea (Roth) Greville (C. P. 



Nott). 



Calothrix parantica (Chauvin) Thuret. 

 Common, on Nemalion multifidum, occasionally 



on Castagnea and other loose tissued algae. 

 Woods Hole : Juniper Point, Grassy Ledge. Cut- 



tyhunk. 

 Summer. 

 A. A. B. Ex., fas. v, no. 224, Woods Hole (W. G. 



Farlow); P. B.-A., fas. in.no. in, Woods Hole, 



July 29, 1895 (C. P. Nott). 



Calothrix pulvinata (Mertens) Agardh. 



Common, forming patches resembling honey- 

 comb on wharves and stones. 



Woods Hole: Wharves and harbor walls. 



Summer, undoubtedly at other seasons. 



Farlow, 1881, p. 37, Woods Hole; A. A. B. Ex., 

 fas. i, no. 50, Woods Hole (W. G. Farlow). 



Calothrix scopulorum (Weber & Mohr) Agardli. 

 Common, forming patches on rocks and piles 



near high-water mark. 

 Woods Hole: Grassy Ledge. Tarpaulin Cove. 



Piles of wharf at Gay Head. 

 Summer, undoubtedly at other seasons. 

 Farlow, 1881, p. 37, Woods Hole. 



