BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 



489 



Antithamnion cruciatum, 56, few. 

 Antithamnion plumula, 57 and 58, few. 

 Callithamnion roseum, 57, few. 

 Ceramium rubrum, 57 and 7731, many; 59 and 7731 



(1907), few. 

 Chondrus crispus, 56, 57, and 58, many; 59, 60, 7581 



(1907), and 7731 (1907). few. 

 Corallina officinalis, 56 and 57, many; 58, 60, and 



7581, few. 

 Cystoclonium purpurascens, 56, 57, 58, and 59, 



many; 6o, few. 

 Cystoclonium purpurascens var. cirrhosum, 56, 58, 



59, and 7731 (1907), many; 60, 7581 (1907), and 



7731, few. 

 Delesseria sinuosa, 56, 57, and 58, many; 7731, few. 

 Grinnellia americana, 56, many; 7581, few. 

 Gymnogongrus norvegicus, 56, few. 

 Hildenbrandia prototypus, 58 and 59, many. 

 Lithothamnion polymorphum, 57, 58, 59, and 60, 



many. 

 Lomentaria rosea, 57 and 58, many; 56 and 59, few. 



Melobesia farinosa, 57 and 58, many. 

 Melobesia membranacea, 56, 57, and 58, many. 

 Melobesia pustulata, 57, few. 



Phyllophora Brodiaei, 56, 57, and 58, man)'; 59, few. 

 Phyllophora membranifolia, 56, 57, and 58, many; 



60, few. 

 Plumaria elegans, 57, 58, and 59, many. 

 Polyides rotundus, 56, 57, 58, 60, and 7581 (1907), 



few. 

 Polysiphonia atrorubescens, 56, many. 

 Polysiphonia elongata, 56, 59, and 7731, many; 60, 



7581 (1907), and 7731 (1907), few. 

 Polysiphonia nigrescens, 60 and 7731, many; 59, 



7581 (1907), and 7731 (1907), few. 

 Rhodomela subfusca, 56, few. 

 Rhodomela Rochei, 7731 (1907), few. 

 Rhodymeniapalmata, 59, many; 60 and 7731 (1907), 



few. 

 Scinaia furcellata, 57, few. 

 Spermothamnion Turneri, 56, 57, and 58, many; 



59, few. 



(2) THE REEFS OF SOW AND PIGS. 



The bottom around the reefs of Sow and Pigs (stations 35, 36 and 37), lying off Cut- 

 tyhunk, has an algal flora noteworthy for the presence of such species as Delesseria sinuosa, 

 Lomentaria rosea, and Plumaria elegans, forms which are also characteristic of the ledges off 

 Gay Head and are members of the cool-water sublittoral formation. The quantity of 

 algae is, however, not great. An examination of the reefs themselves, although difficult, 

 would doubtless prove interesting. There were considerable amounts of Corallina 

 officinalis (35, 36, 37), Delesseria sinuosa (35, 36), Phyllophora Brodicei (35, 36, 37), and 

 Plumaria elegans (36, 37), and in addition relatively few plants of Chatomorpha melago- 

 nium (37) , Eclocarpus fasciculatus (37) , Laminaria Agardhiivar. vittata (36, 37), Ahnfeldtia 

 plicata (36), Ceramium rubrum (37), Ceramium tenuis simum (35), Chondrus crispus (35, 

 36), Cystoclonium purpurascens var. cirrhosum (35, 36, 37), Lithothamnion polymorphum 

 (35), Lomentaria rosea (37), Melobesia pustulata (36), Rhodymenia palmata (36), and 

 Spermothamnion Turneri (35). 



(3) THE PASSAGE OF WOODS HOLE. 



The easterly side of the passage of Woods Hole (station 122) off the end of the hook- 

 shaped point of land called Penzance (Long Neck) has a sand and gravel bottom in 4 to 5 

 fathoms. The following species were found in small quantities : Champia parvula, Dasya 

 elegans, Griffithsia Bornetiana, Grinnellia americana, Phyllophora Brodiaei, Polysiphonia 

 nigrescens , Rhodomela Rochei, and Seirospora Griffiihsiana. 



The westerly side of the passage off Uncatena Island (station 118) on a bottom of 

 sand and shells showed small quantities of Chordaria flagelliformis, Ceramium rubrum, 

 Chondrus crispus, Cystoclonium purpurascens, and Lomentaria tincinata. Off the entrance 

 to Hadley Harbor (stations 119 and 120) the bottom is sand and mud, and appears 

 to support no algal life. 



