406 PROCEEDINGS OF THE \ LTIONAL MUSEUM. 



Susan A. Hutchinson, curator of books, all of the museum staff of the 

 Brooklyn Insl itute of Arts and Sciences. 



The following summary is an attempt to tabulate the list of known 

 species of Copepoda an<l Cladocera for our northeastern shores. 



SUMMARY OF SPECIES. 

 Order COPEPODA. 



Tribe GYMNOPLEA. 



1. Family CA FAX 11 ).F. 



1. Genus < 'alarms. 



1. C. finmarchicus ((humerus), Narragansett Bay, Rhode Island (Wil- 



liams); Vineyard Sound (Wheeler); station 345, Grampus; off Dela- 

 ware Bay; Grampus stations 1, 325, 626, 528, 327, and Nantucket 

 Sound. 



2. C. minor Clans, Gulf Stream, south of Marthas Vineyard, July 



(Wheeler). 



2. Genus Eucalanus. 



3. /-'. attenuatus Dana, Gulf Stream south of Marthas Vineyard, July 



(Wheeler). 

 1. /■:. monachus Giesbrecht, Gulf Stream south of Marthas Vineyard, July 

 i Wheeler). 



3. Genus Mecynocera. 



5. M. clausii I. C. Thompson, Cull" Stream south of Marthas Vineyard, 



July (Wheeler). 



4. Genus Paracalanus. 



6. /'. parvus Clan.-, (Iulf Stream south of Marthas Vineyard, July 



(Wheeler). 



5. Genus < 'alocalanus. 



7. C. /»iri) Dana, Gulf Stream, as above i Wheeler). 



8. C. plumulosus Claus, Gulf Stream, as above (Wheeler). 



6. Genus Clausocalanus. 



9. ( '. arcuicornis Dana, Gulf Stream, as above l Wheeler). 



7. ( ienus Pseudocalanus. 



10. P. elongatus (Boeck), Narragansetl Bay, Rhode Island, February 



i Williams). 



8. Genus Euchaeta. 



11. /•.'. spinosa Giesbrecht, Sagamore Bay, Cape Cod, June. 



2. Family CENTROPAGID.E. 



9. < tenus ' '< ntropages. 



12. C. typicus kmver. Woods Bole, June to November; Nantuckel and 



Vineyard Bounds, Plymouth Earbor, Gulf Stream south of Marthas 

 Vineyard i Wheelei 



L3. C. hamatus (Lilljeborg), W Is Eole (Wheeler); Narragansetl Bay, 



Rhode Island. January and February (Williams), 

 M. C. bradyi Wheeler. Gulf Stream, smith of Martha- Vineyard I Wheeler). 

 It). Genus '/'< mora. 



15. '/'. longicornis (Mullen, Weeds Bole, cooler months (Wheeler); Narra- 



ttsetl Bay, Rhode Island, all through the year (Williams), Com- 

 mon. 

 11. ( renue EuryU mora. 



16. /.'. Innimiii,! Thom | >s< hi and Scott, Narragansetl Fay, Rhode [aland 



l Williams i; W Is Hole, August. 



17. A', hirundoides (Nordquist), Woods Hole, August; Cuttyhunk, Massa- 



chusette, July; Narragansetl Bay (William 



