79 
Trib. 3. Cydopoulea. 
Fam. 1. Oithonellidse. 
323. Oithonella 1 helgolandica, Claus. 
(= Oithonci pygmma, Boeck). 
Foruden nsermere Kysten blev denne Art observeret 
i det aabne Hav paa Stat. 9 (C; Vest af Nordlandskysten, 
som siedvanlig svommende lige i Vandskorpen. Arten, 
der er meget almindelig ved vor Syd- og V estkyst, er iprst 
beskreven af Claus fra Helgoland. 
Fam. 2. Cyclopidse. 
324. Cyclops strenuus, Fischer. 
Qbserveret under Expeditionen i \ andpytter user Reik- 
javik (Island). Arten, der alene synes at v;ere indskrsenket 
til mindre Vandansamlinger, synes at have en vid Udbred- 
ning over Europas Fastland og de britiske Wer. 
325. Cyclops gigas, Claus. 
Ikke sjelden sammesteds niellem Mudret paa Bunden 
af Dammene. Arten, der er meget almindelig hos os og 
udbredt til de britiske 0er og Mellemeuropa, forekommer 
foruden i mindre Damme ogsaa i stprre Indsper, hvor den 
gaar ned til meget betydelige Dybder (50 Favne). 
Fam. 3. Ascomyzontidee. 
326. Ascomyzon nigripes, (Brady). 
$ 
(== Ascomyzon ThoreUi, Gr. O. Sars, Crust. & Pycnog. nova Exp. 
Norv., No. 52). 
Ved at conferere med det nylig af Brady udgivne 
Copepodevan'k har jeg overbevist mig om, at denne al mig 
1 Da Stagtnavnet “Oithona” allerede er anvendt i Zoologien, har 
jeg foretaget ovenstaaende Forandring. 
Trib. 3. Cydopoidea. 
Fam. 1. Oithonellidte. 
323. Oithonella 1 helgolandica, Claus. 
(= Oitkona pyynuea, Boeck). 
Besides in comparative proximity to the coast, this 
species was also observed in the open sea, at Station 96, 
west of the coast of Nordland, swimming about as usual 
at the surface of the water. The form — very common 
off the south and west coasts of the country — was first 
described by Claus, from Helgoland. 
Fam. 2. Cyclopidse. 
324. Cyclops strenuus, Fischer. 
On the Expedition, observed in pools of water near 
Rcikjavik (Iceland). The species, that would appear to 
occur exclusively in small pools and lakelets, has, it seems, a 
wide distribution over the continent of Europe, including 
the British Islands. 
325. Cyclops gigas, Claus. 
Not infrequently met with betwixt the mud at the bot- 
tom of the same pools. The species — very common in Norway 
and extending to the British Islands and Mid-Europe — 
occurs not only in pools and ponds, but also in lakes of 
greater extent, where it descends to a very considerable 
depth (50 fathoms). 
Fam. 3. Ascomyzontidse. 
326. Ascomyzon nigripes, (Brady). 
(= Ascomyzon. Thorelli, (x. 0. Sars, Crust. & Pycnog. nova Exp. 
Norv., No. 52). 
On referring to the work on the British Copepoda lately 
published by Brady, I have come to the result that the 
1 The generic name of “Oithona” having been already adopted 
in Zoology, I have selected the above modification. 
