798 
BULLETIN OF THE BUREAU OF FISHERIES. 
SUBFAMILY LYNGBYEAJ . 
Lyngbya oestuarii (Mertens) Liebman. 
Common, salt marshes and brackish pools, on 
stones and mud between tide marks, also on 
wharves. 
Woods Hole : Penzance , Eel Pond . Salt marshes 
of Ouisset and Hadley Harbor, 
Summer, undoubtedly throughout the year. 
Lyngbya confervoides Agardh. 
Occasional, in salt marshes and pools. 
Woods Hole: Penzance. 
Summer. 
Farlow, 1881, p. 35 ( Lyngbya luteo-fusca J. 
Agardh), Woods Hole; A. A. B. Ex., fas. 1, 
no. 48 ( Lyngbya luteo-fusca J. Agardh), Woods 
Hole (W. G. Farlow). 
Lyngbya Lagerheimii (Mobius) Gomont. 
In brackish waters. 
Little Pond of Falmouth Heights. 
Known only from specimen in herbarium of the 
Marine Biological Laboratory collected by W. 
A. Setchell and W. J. V. Osterhout. 
Lyngbya majuscula (Dillwyn) Harvey. 
Occasional, attached to Zostera, and sometimes 
found floating in large quantities in sheltered 
situations. 
Woods Hole: Great Harbor. Vineyard Haven. 
Vineyard Sound east end of Naushon. Me- 
nemsha Bight. 
Summer. 
Farlow, 1873, p. 293, Woods Hole, Naushon, 
Edgartown; Farlow, 1875, p. 380, Woods Hole; 
A. A. B. Ex., fas. v, no. 228, Vineyard Haven, 
September, 1883 (W. G. Farlow); P. B.-A., 
fas. v, no. 202, Woods Hole, August 16, 1894 
(W. A. Setchell). 
Suborder HE' 
Family NostocacE^E. 
Anabcena torulosa Lagerheim. 
Abundant, on decaying algae and Zostera, from 
whence it frequently rises and floats in quiet 
waters. 
Woods Hole: Zostera patches in Eel Pond, Little 
Harbor, Ram Island. Similar situations Quis- 
set Harbor, Hadley Harbor, Tarpaulin Cove. 
Summer. 
Farlow, 1876, p. 715 ( Sphcerozyga Carmichaelli 
Harvey), Woods Hole; Farlow, 1881, p. 30 
{Sphcerozyga Carmichaelli Harvey), Woods 
Hole. 
Lyngbya semiplena (Agardh) J. Agardh. 
Common, in salt marshes, brackish pools and 
ditches, mixed with Microcoleus, Lyngbya, etc. 
Woods Hole: Ditches of Penzance. 
Summer, undoubtedly at other seasons. 
Oscillatoria amphibia Agardh. 
Common, on woodwork of wharves, frequently 
mixed with Oscillatoria latevirens . 
Woods Hole. 
Summer, undoubtedly at other seasons. 
Found by F. S. Collins, summer of 1904. 
Oscillatoria Icetevirens Crouan. 
Common, on woodwork of wharves, frequently 
mixed with Oscillatoria amphibia. 
Woods Hole. 
Summer, undoubtedly at other seasons. 
Found by F. S. Collins, summer of 1904. 
Phormidium persicinum (Reirtke) Gomont. 
Rare, appearing during the winter in a jar of salt 
water (G. M. Gray). 
Woods Hole. 
P. B.-A., fas. xxix, no. 1401, Woods Hole, 
May, 1907 (B. M. Davis). 
Spirulina subsalsa Oersted. 
Common in salt marshes and brackish pools, 
mixed with Lyngbya, Microcoleus, etc. 
Woods Hole: Penzance. Quisset. Hadley 
Harbor. 
Summer, probably at all seasons. 
Farlow, 1881, p. 31 {Spirulina tenuissima Kiitz- 
ing), Woods Hole. 
Microchcete grisea Thuret. 
Common, on pebbles and shells with Isactis. 
Woods Hole: Eel Pond. West Falmouth (Col- 
lins). 
Summer, undoubtedly at other seasons. 
Collins, 1884, p. 130, old pecten shell, West Fal- 
mouth. 
Nodularia Harveyana (Thwaites) Thuret. 
Common, in brackish water mixed with Lyngbya, 
Microcoleus, etc. 
Woods Hole: Eel Pond. 
Summer. 
