PLANKTON OF THE WOODS HOLE REGION 
145 
During the past year 42 species of free-swimming copepods appeared in the 
surface collections taken from the end of the Fisheries dock. Of these, 19 belong 
to the tribe Gymnoplea and 22 to the tribe Podoplea. In Sharpe's hst 12 species 
from this region belong to the Gvmnoplea. The hst for this tribe. I believe, is 
<Jalanus f Imnarohlous 
Pseud ooalanns elongjitns 
Imuature P.elongatus 
Paraoalairas peuma 
Centropages typious 
Centropages hematus 
lamature C •hematus 
Temora longlcornls 
Burytemora herdmani 
Eurytemora hlrundoldes 
Uetrldla Incens 
P.ooronatns 
latldooera aestlvs 
PcAtella neadll 
Anonalooera paters onl 
Aoartla tonsa 
Aoartla olausll 
Aoartla longiremls 
Aoartla Mfllcsa 
Tortanns dlsea'odata 
Olthona slnllls 
Hiorosetella rosea 
Mlorosetella norveglca 
Setella gracilis 
Tbaiaialetis claparedll 
Earpaotlens ohellfer 
Barpactlot!S tmiremls 
Altentha depressa 
Parategastes sphaerleos 
Id:^ foroata 
Daotylopnsla vulgaris 
Taohldlus 'brevloomls 
Amphlasous o'bsoaras 
Parawestwoodia mlnuta 
Longipedia ooronatns 
IlyopByllns sarsl 
Fig. 46.— Occurrence of Copepoda in surface collections from June, 1922, to May, 1923. (.Oiihona brcuicornis 
is not distinguished from 0. similis) 
now fairly complete. The Podoplea, however, have scarcely been touched and will, 
no doubt, j-ield many more species when carefully studied. Twelve species taken in 
1922-23 are new to the Woods Hole region, I have not listed as new any forms 
previously recorded from Narragansett Bay. 
