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The maxilla and the f i f t h and s i x t h 1 i m b s are very like those of the female.
Seventh limb: — This is very like that of the female. The following numbers
of cleaning bristles were observed: from nine to thirteen ventral ones and from eight to eleven
dorsal ones situated close together distally; proximally of these from five to seven ventral ones
and from eight to ten dorsal ones scattered about. The equipment of these bristles was similar
to that of the female. The end comb sometimes seemed to be slightly weaker than in the female.
Penis (fig. 7): — This is of the fundamental type for this sub-family; for details see
the accompanving figure; the number of bristles varies to some extent.
Furca (fig. 8): —- As in the case of the female, it has nine claws; in the male, however,
these aresomewhat mores lender; the second, third and fourth claws are joined to the lamella; no. 3
is somewhat weakened. The equipment of the claws is perhaps a little weaker than in the female.
The u p p e r 1 i p and rod-shaped organ are about the same as in the female.
The lateral eyes have from fourteen to sixteen ommatidia and are thus somewhat
larger than in the female.
The back o f the b o d y is somewhat folded transversally.
Remarks: — The original description of Cypridina norvegica W. Baird is, as is seen from
the above list of synonyms, to be found in the Proceedings of the Zoologieal Society of London,
1860, p. 200. G. S. BRADY and A. M. NORMAN, 1896, and G. W. MÜLLER, 1912, give it as
being from the Annals and Magazine of Natural History, 1860, p. 139. This is, however,
incorrect, inasmuch as the treatise entitled ,,On some new species of Cypridina“, to which
these authors obviously refer, is only a reproduction of the original treatise. It is printed
under the heading „Proceedings of Learned Societies, Zoologieal Society“. Unlike the original
treatise, however, it is not accompanied by any illustrations.
The description in question is very short and is given in very general terms, without
any characteristic details being produced. Only the shell is dealt witli. The accompanying
figures are also of such a nature that certainty of identification is impossible. Thus in 1912
G. W. Müller quite justly denotes G. S. Brady’s and A. M. NORM.w’s identification as uncertain
by ad ding a query.
The species in question was described from a specimen cauglit on „the coast of Norway“.
Only one other species of this sub-genus is described from this region, namely C. ( V.) megalops
G. O. Sars. As this region may be said to be rather well investigated — at least as far as forms
as relatively large as the two mentioned ones are concerned — and as C. (V.) norvegica and
C. (VJ megalops are so essentially different from each other with regard to the form of their
shells that there may be no risk of confusing them, 1 have decided, in spite of the incompleteness
of W. BàIRD’s original description, to identif v my form described above with this species of BAIRD’s.
According to the statement of W. Baird himself the type-specimen of this species is
preserved in the British Museum. If, however, this specimen is no longer to be found and if
new species with a habitus agreeing with that of C. ( VJ norvegica are discovered on the coast
of Norway, then, of course, this species of Baird’s will have to be deleted from the list of the
identifiable species and a new name given to the form described by me above.
Remarks about
the original
description.
Identification.
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