30 
113. Idotea irrorata, (Say). 
(= I. tricuspidata, Desmarest). 
Exemplarer af denne ved vore Kyster almindeligt fore- 
kommende Art blev indsamlede ved Host paa forholdsvis 
grundt Vand. Arten er udbredt til Kattegat, Ostersoen, 
de britiske 0er, Middelhavet, det sorte Hay og 0stkysten 
af Nordamerika. 
114. Idotea pelagica, Leach. 
• 
JSTogle ganske unge Exemplarer af denne ligeledes ved 
vore Kyster almindelige Art toges under Expeditionen i 
Havnen ved Reikjavik. Den synes at vsere en mere nordlig 
Form, da den ikke med Sikkerhed er kjendt sydligere end 
fra de bi’itiske 0er. Den nordamerikanske I. phosphor ea 
Harger synes at komme vor Form meget nrcr. 
115. Synidotea nodulosa. (Kroyer). 
Adskillige Exemplarer af denne arktiske Form blev 
under Expeditionens sidste Togt indsamlede ved Norske 
0er og i Magdalenebay (Stat. 366) paa Spitsbergen. Arten 
er udbredt til Gronland, Nordamerikas 0st- og Vestkyst, 
Polareerne, Sibiriens Ishav samt det kariske Hav, folgelig 
circumpolar. 
116. Synidotea bicuspida, (Owen). 
Se lste Afsnit, pg. 116, PL X, Pig'. 24 — 26. 
113. Idotea irrorata, (Say). 
(— I. tricuspidata, Desmarest), 
Individuals of this species, a common one .along the 
Norwegian coast, were collected at Rost, in comparatively 
shallow water. The form is also met with in the Cattegat, 
the Baltic, the British Islands, the Mediterranean, and the 
east coast of North America. 
114. Idotea pelagica, Leach. 
A few very young individuals of this species, also 
rather common off the coast of Norway, were taken on 
the Expedition in the harbour of Reikjavik. The species 
would appear to be a more northern form, having not been 
met with farther south than the British Islands. The North 
American species 1. phosphor ea Harger would appear to 
closely approximate the present form. 
115. Synidotea nodulosa, (Kroyer).| 
Several individuals of this Arctic form were collected, 
on the last cruise of the Expedition, off the Norwegian 
Islands and in Magdalena Bay (Stat. 366), Spitzbergen. 
The range of distribution extends to Greenland, the east 
and west coasts of North America, the Polar Islands, the 
Siberian Polar Sea, as also the Kara Sea, — and accordingly 
is circumpolar. 
116. Synidotea bicuspida, (Owen). 
See Part I, p. 116, PI. X, figs. 24—26. 
Findested. Stat. 366. 
Locality. — Stat. 366. 
