242 K. STEPHENSEN. 
10 spec. (1. Zoea); St. 126, ringtrawl, 800 m. w., 1 spec. (3. Zoea), — 
Skovfjord, St. 147, surface, 1 spec. (3. Zoea). 
The above list shows, that Zoea is found at several different places 
and in widely different depths. 
There are only two stages represented in the material, viz.: one 
entirely without pleopoda, and one with fairly large, but entirely imarti- 
culate do. The youngest stage 
I have described in the“Tjalfe” 
expedition, p. 127, fig 33, but 
did not venture to determine 
it at the time, although I 
pointed out its resemblance 
to the Zoea of Hyas araneus. 
I have since, in “Northern 
Stremfjord 1913”, p. 64, ad- 
vanced reasons for ascribing 
the larva to Hyas coarctatus, 
only this form, and not H. ara- 
neus, having been found in 
Northern Stromfjord;the same 
applies to Bredefjord and ad- 
jacent waters, where, as my 
list shows, Hyas coarctatus is. 
extremely common, whereas. 
I did not find a single speci- 
men of Hyas araneus. This 
; seems to be more than suf- 
Fig. 1. Hyas coarctatus, 3. Zoea. ficient proof of the correctness 
of my determination. 
With regard to the Zoea stage, there is nothing to remark; refe- 
rence may be made to my description in the “Tjalfe” expedition. 
The older Zoea, of which I have taken but a single specimen at. 
St. 126 and another at St. 147 (August 26. and September 5.) agrees. 
entirely with the description given by Wituiamson of 3. Zoea stage 
of Hyas araneus in the Report on larval and later stages of certain De- 
capod Crustacea (Fishery board for Scotland, Sc. Invest. 1909, Nr. 1, 
1911, p. 13, Pl. 1, fig. 1—2, Pl. 5, fig. 70—81, 83) and I have therefore 
considered it sufficient here to give detail figures of some of the limbs, 
referring for the rest to Witt1amson. The only point which needs be 
noted is that the 3. pair of maxillipedes, of which no trace was found 
in the 1. Zoea stage, now appears as a fairly large, cleft limb, this being, 
however, like the pereiopoda, without articulation. 
In view of this complete uniformity, we can only suppose that. 
either the Zoea of the two species resemble each other to such a degree 
that it has been impossible hitherto to discover any real difference, 
