BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 



809 



Elachista stellaris var. Chordae Areschoug. 

 Occasional , on Stilophora rhizodes. 

 Falmouth (Collins). 

 September (Collins). 



Collins, 1891, pp. 339, 340, on Stilophora rhizodes, 

 Falmouth, in September. 



Giraudia sphacelarioidcs Derbes & Solier. 



Rare, on Zostcra, intermingled with Punctaria, 

 Ectocarpus, and various small species. 



Vineyard Haven (Schuh) and Oak Bluffs (Cot- 

 tage City, Schuh). 



August, 1892, January, 1895. 



Schuh, I9o6b, p. 206, Vineyard Haven, August, 

 1892, Oak Bluffs (Cottage City), January, 1895. 



Family CHORDARIACE^E. 



Castagnea virescens (Carmichael) Thuret. 



Occasional, on rocks, algae, and Zostera, below 



low-water mark. 

 Woods Hole: Great Harbor, Little Harbor. 



Washed ashore at Nobska. 

 Spring, early summer. 

 Farlow, 1876, p. 708, Woods Hole; Farlow, 1881, 



pp. 85, 86, Woods Hole. 



Castagnea Zostera (Mohr) Thuret. 

 Common, attached to Zostera. 

 Woods Hole: Grassy Ledge, Little Harbor. 

 Late summer. 



Farlow, 1876, p. 708, Woods Hole; Farlow, 1881, 

 p. 86, Woods Hole. 



Chordaria flagelliformis (Flora Danica) Agardh. 



Common, on stones, wharves, and larger algae 

 below low- water mark. Dredged by the Sur- 

 vey in 3 to 10 fathoms, over sandy, shelly, and 

 gravelly bottoms. A scattered distribution in 

 Buzzards Bay and Vineyard Sound. 



Woods Hole: Grassy Ledge, Gut of Canso. 

 Nobska. Black Rock. 



Buzzards Bay: Upper portion 7653 and 7654, 

 few. Lower portion 7656, many on stones; 

 7667, few on stones. 



Vineyard Sound: Narrow portion 7524, .one; 

 7525, few. Inshore passage of Woods Hole 

 118, few on Chondnis; Quicks Hole 29, few; Gay 

 Head 50 and 51, thick patches on rocks; Marthas 

 Vineyard 52, 61, 68, 76, and 7 761, few on stones. 

 Drifted fragment, 60, one. 



Spring, summer. 



Farlow, 1873, p. 285, Nobska, Gay Head. 



Hccatonema maculans (Collins) Sauvageau. 

 Occasional, on Zostera, Rhodymenia palmata. 

 Woods Hole: (Collins). No Mans Land. 

 Summer. May 2, 1905 (Collins). 



Leathesia difformis (Linnaeus) Areschoug. 



Abundant, attached to larger algae, AscophyUum, 

 Fucus, etc. Dredged by the Survey off Cutty- 

 hunk and in Robinsons Hole, 2 to 5 fathoms 

 over sandy and muddy bottoms. 



Woods Hole: Grassy Ledge, Little Harbor. 



Buzzards Bay: Inshore 100, few on Phyllophora. 



Vineyard Sound: Inshore Robinsons Hole 20, 

 few on Chondrus; 29, few on stones. Drifted 

 fragments, 7688, 83. 



Summer. 



Farlow, 1873, p. 286 (Leathesia tuberiformis S. F. 

 Gray), Buzzards Bay; P. B.-A. fas. in, no. 130, 

 Woods Hole, August 14, 1894 (W. A. Setchell). 



Mesogloia divaricata (Agardh) Kiitzing. 

 Abundant in quiet water, attached to larger algae 



and stones below low-water mark. Dredged 



by the Survey in 3 to 6 fathoms, over sandy and 



stony bottoms. 

 Woods Hole: Great Harbor, Grassy Ledge, Little 



Harbor. Black Rock. 

 Buzzards Bay: Inshore near Gunning Point, 



station 130, many. 

 Vineyard Sound: Narrow portion 7548, few. 



Inshore Marthas Vineyard 73 , many. Drifted 



fragments, 7681, 7688, 161. 

 Summer. 

 Farlow, 1873, p. 286 (Chordaria divaricata 



Agardh), Woods Hole; A. A. B. Ex., fas.v, 



no. 198, Woods Hole (W. G. Farlow). 



Myriactis pulvinala Kiitzing, var. minor Farlow. 

 Common, parasitic in the cryptostomata of Sar- 



gassum Filipendula. 

 Woods Hole: Entrance to Eel Pond, off Juniper 



Point. 

 Summer. 

 Farlow, 1881, pp. 81, 82, Woods Hole; P. B.-A., 



fas. v, no. 231, Woods Hole, August 13, 1895. 



Myrionema corunnas Sauvageau. 

 Common, on Laminaria. 

 Woods Hole: Grassy Ledge (Collins). 

 December 30, 1904 (Collins). 

 Collins, I9o6b, p. 158, Woods Hole, on Law/fl<m'a. 



Myrionema vulgare Thuret. 



Common, on Zostera, Rhodymenia palmata. 



Woods Hole. Washed ashore at Gay Head. 



Spring, summer. 



Farlow, 1876, p. 709 (Myrionema strangulans 

 Greville), Woods Hole; Farlow, 1876, p. 709 

 (Myrionema Ledancherii Harvey), Gay Head; 

 P. B.-A., fas. vi, no. 280 [Myrionema Ledan- 

 cherii (Chauvin) Harvey], on Rhodymenia pal- 

 mata, Gay Head, August 10, 1890 (W. A. 

 Setchell). 



