22 CRUSTACEA COPEPODA. II. 
23. Monstrilla Wandeli Steph. 
1913. Monstrilla Wandeli Stephensen, Meddel. fra Gronland B. LI, p. 73, Pl. VI. 
As pointed out by Stephensen, this species is easily recognized by the reticulation on the cephalo- 
thorax together with the position of the dorsal small hair on each caudal ramus, and the shape of fifth legs, 
as each leg has a subcylindrical process or small and slender ramus on the inner side; this process reaches 
slightly beyond the base of the two ternunal setee and protrudes freely backwards, but it is in Stephensen’s 
figure obliquely pressed against the peduncle. 
Occurrence. — The only specimen known is Stephensen’s type. 
West Greenland: Northern Stromfjord, at Lat. 67°40’ N., Long. 53° W., surface; I specimen. 
Division Notodelphyoida. 
Notodelphys Allman. 
It is rather curious that only a single species of this genus has hitherto been found in the “Ingolf” area. 
24. Notodelphys rufescens Thor. 
1860. Notodelphys rufescens Thorell, K. Sv. Vet. Akad. Handl. B. 3, No. 8, p. 35, Tab. II, 2. 
!rg2t. — — (CG, ©; Sancy Aoeorwscte, WOll WIO0l, fo. BB, IL SOVIUL, 3c, 
The single female agrees excellently with the descriptions and figures of Thorell and Sars excepting 
as to one point, viz. that the incubatory pouch is exceedingly large, in reality so long that the abdomen seems 
to originate from the middle of its ventral side, so that it, seen from above, covers the whole abdomen ex- 
cepting its last segment. The caudal rami completely as figured by Thorell and Sars, consequently differing 
from N. Allmani in the position of the lateral seta. 
Occurrence. — Not secured by the “Ingolf’, but by Dr. Th. Mortensen in 1899. 
Feeroes: North of Nols6. In Phallusia conchilega; 1 specimen. 
Distribution. — South coast of Norway (G. O. Sars); Bohuslan (Thorell, Aurivillius). 
Doropygopsis G. O. Sars. 
This genus comprises only a single species. 
25. Doropygopsis longicauda (? Aurivillius) G. O. Sars. 
1883(?) Dovopygus longicauda Aurivillius, Bidrag till Kannedomen om Krustaceer, som lefva hos Mol- 
lusker och Tunikater, p. 18, Tafl. IIT. 
!rgat. Doropygopsis longicauda G. O. Sars, Account, Vol. VIII, p. 47, Pl. XXIII. 
That the adult specimens enumerated below belong to D. longicauda as figured by Sars is easily seen; 
though the 4 specimens from Boltenia are very young and partly weakly chitinized, I am rather sure that 
they belong to the same species. But whether the species established by Aurivillius is the same as that described 
by Sars seems to be somewhat questionable. The antennule and antenne in my specimens agree with Sars’ 
figures, which in several respects differ so much from those drawn by Aurivillius (Pl. ITI, figs. 2 and 3) that 
