Ichthyologiske notiser I. 85 
appliances were towed at intermediate depths on stat. 235 and 
271, the larvae — or some of them — being thus caught pelagic. 
I have referred these larvae to C. rupestris as they may well be 
assumed to be younger stages of the first-named larva and are 
taken within the same area as that one. According to COLLETT 
(1903) C. rupestris spawns during the autumn and the first 
winter-months; my young stages from June and July are then 
from the previous year. | 
Argentina sphyraena (L.). Young stages, total length 
162—172 mm., were common in the catches of the prawn-trawlers 
at Stavanger "9 1916 together with A. silus of the same size. 
These two species are easily distinguished at this size. The scales 
of A. sphyraena are large, loose in the skin, generally only 
those of the lateral line are present; along the middle of the body 
runs a broad silvery band. A. silus has smaller, adhering scales 
generally all in position; on each side of the back a row of 12 
dark spots. This coloration I have also found in A. sphyraena, 
distinctly in a specimen of 75 mm., now and then but more 
indistinctly indicated in the above-mentioned specimens. These 
spots are the last remnants of the coloration of the pelagic stages 
as described by SCHMIDT (1906b), A. silus thus retaining this 
character longer than A. sphyraena. This is in accordance with 
the observation of SCHMIDT on the pelagic stages, that in the 
case of specimens of the same size A. sphyraena is farther 
advanced in development than A. silus. 
A. striata (Goode & Bean) (1896 p. 52, fig. 62). This 
species from the Atlantic coast of N. America is evidently not 
founded on adult specimens. The type, figured by GOODE & 
BEAN, has the same spotted design as I have mentioned above, 
and judging from the illustration the total length of the type is 
abt. 96 mm. This made me suspect the validity of the species. 
A. silus is known from these waters, A. sphyraena hitherto has 
not, but might well: occur there. A. striata is especially 
characterized by the scales of the lateral line being obliquely 
striate, not rugose as in the other two species. It should, however, 
be borne in mind that the rugosity of the scales is a character 
taken from the adult specimens, in reality it has not yet appeared 
in my young specimens of A. sphyraena. With this species A. 
