15 
French coast !, and the differences between the two species, although 
distinet, are easily overlooked, it would be possible, that the species 
mentioned by Böhm as N. grossipes was indeed a Nymphon gra- 
eile, Leach. 
In the Barents Sea, on the Coast of Greenland etc. this species 
does not seem to be very common, whereas Wilson says of it for the 
Fauna of New England, that it is perhaps the commonest species 
of the group. 
Nymphon Iongitarse, Kröyer, Bitrag til Kundskab etc., Nat. 
Tidsk. Ny Raekke. I. 1845. p. 112. 
Nymphon longitarse, Kröyer, Wilson, Pyenogonida of New 
England. Trans. Oonnect. Acad. of Arts and Sciences. Vol. V. 
1880. p. 19. 
Plate I. fig. 22—23. 
I was long uncertain whether this form is really a distinct spe- 
cies; in many regards it corresponds with N. grossipes and espe- 
cially with the varietas miwtum of that species. Wilson believes 
it a good species readily distinguished by its extremely attenuated 
appearance and as I do not know whether there are or are not forms 
passing from this form to one of the true N. grossipes-forms I also 
think it safest to consider it as a true species. 
Two specimens, the onea male, were dredged during the second cruise 
ofthe W. Barents. The male is a full grown animal furnished with egg- 
masses, one packet at the one, three packets at the other ovigerous 
leg. Of this specimen I figured in Fig. 22 the two last joints of 
one of the legs, showing the first tarsal joint much longer than the 
second, the claw longer than half the length of the second tarsal 
joint, the auxiliary claws about '/; the length of the claw. In Fig. 
23 the relative length of the joints of the palpi is shown: the 
second joint is a little longer than the third, the two last joints 
1) The Nymphon grossipes occurs at a depth of 20—100 fathoms, the N. 
gracile is very abundant in the immediate neighbourhood of the shore, where 
the depth is at best a few fathoms. 
