BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 



553 



Bodo caudatus (Dujardin). 



Calkins, 1902, page 425. 



U. S. Bureau of Fisheries pier, common. 'This 

 species was seen by Peck, 1905, and described as a 

 small flagellate." 



Oxyrrhis marina Dujardin. 

 Calkins, 1902, page 425. 

 U. S. Bureau of Fisheries pier. 



Family ASTASIID^. 



Astasia contorta Dujardin. 



Calkins, 1902, page 426. 



U. S. Bureau of Fisheries pier, "common in 

 decaying algae." 



Family PERANEMID/E. 



Anisonema vitrea (Dujardin). 



Calkins, 1902, page 426. 



"Quite common in decaying algae at Woods 

 Hole." 



(Assigned to no family.) 



Distephanus speculum Stohr. 



Calkins, 1902, page 427. 



U. S. Bureau of Fisheries pier, a single specimen 

 taken in tow in the evening. 



Subclass CHOANOFLAGELLATA. 



Monosiga ovata Kent. 



Calkins, 1902, page 424. 



U. S. Bureau of Fisheries pier. This species 

 inhabits both fresh and salt water. 



Monosiga fusiformis Kent. 



Calkins, 1902, page 424. 



U. S. Bureau of Fisheries pier. This species 

 inhabits both fresh and salt water. 



Codonosiga botrytis Clark. 



Calkins, 1902, page 424. 



U. S. Bureau of Fisheries, on red algae; a few 

 individuals (no colonies). 



Class PHYTOMASTIGOPHORA. 



Subclass DINOFLAGELLATA. 



Family PROROCENTRID^. 



Exumcdla lima (Ehrenberg). 

 Calkins, 1902, page 428. 

 U. S. Bureau of Fisheries pier. 



Exuvicella marina Cienkowsky. 

 Calkins, 1902, page 429. 

 U. S. Bureau of Fisheries pier. 



Exu-ui&lla sp. undetermined. 

 Peck, 1896. 

 Buzzards Bay in plankton. 



Family 



Gymnodinium gracile spherica Calkins. 

 Calkins, 1902, page 429. 

 U. S. Bureau of Fisheries pier, common. 



Glenodinium compressa Calkins. 

 Calkins, 1902, page 430 (sp. nov.). 

 U. S. Bureau of Fisheries pier, not uncommon. 



Glenodinium cinctum Ehrenberg. 



Peck, 1894; Calkins, 1902, page 430. 



U. S. Bureau of Fisheries pier. Calkins. Peck 

 figures a ' ' Glenodinium sp. , " which he refers to 

 as being abundant in the food of the menhaden. 

 Dr. Calkins concludes from Peck's figure that 

 G. cinctum was the form observed. 



Peridinium digitate Pouchet. 



Peck, 1896 (figured by Peck as "P. divergens," 

 Dr. Calkins states); Calkins, 1902, page 431. 



U. S. Bureau of Fisheries pier, common. Cal- 

 kins. 

 Peridium divergent Ehrenberg. 



Peck, 1896; Calkins, 1902, page 431. 



U. S. Bureau of Fisheries pier, common. Cal- 

 kins. Peck listed and figured "Peridinium 

 divergent," from plankton of Buzzards Bay, 

 but Dr. Calkins believes that Peck really re- 

 ferred to P. digitate. 



Peridinium sp. sp. 



Peck, 1894 and 1896, refers to " Peridinium f urea" 

 and to various undetermined members of this 

 genus as constituting an important constituent 

 of the food of the menhaden. 



Ceratiumfusus (Ehrenberg). 



Peck, 1894 and 1896; Calkins, 1902, page 432. 

 Buzzards Bay; abundant in plankton and a fre- 

 quent constituent of food of menhaden. Peck. 

 U. S. Bureau of Fisheries pier, common in tow 

 and in algae. Calkins. 

 Ceratium tripos (Muller). 



Peck, 1894; Calkins, 1902, page 432. 

 Found in food of menhaden. Peck. U. S. Bu- 

 reau of Fisheries pier, common in tow and in 

 algae. Calkins. 



