1908] Decapod Urustaceans. 61 
the appendix. The other appendix (a.i. appendix interna) Is 
slightly bent and a little longer than appendix masculima, if we 
leave out of account its setae. 1t has no setose covering, but is 
instead furnished at the tip with åa group of hooks (UC. cineimnuli). 
Cineinnuli (fig. 4e.): When looked at from the side these 
have almost the appearance of åa sbarply bent powerful hook (c1.) 
but when seen from the front thev appear anchor-shaped (c..).") 
The appendage found on the inner blade of the 2nd pair of 
pleopods in the case of femaåles is of the same structure as the 
appendiz mterna of the males. On the 3rd, 4th and 5th pairs of 
pleopods of both males and females we find on the inner blade 
only one appendix (au. interna). Cineinnuli are found in the males 
on the tip of the inner blade of the ist pair of pleopods, but they 
are not present in the females. They are also found on the tips 
of all the appendices internae in the case of both males and females; 
but they are not present on the above-mentioned appendix mas- 
culina. 
Pandalus leptoceros var. Bonnieri. 
Pandalus leptoceros var. Bonmierv attains the same size as 
Pandalus borealis, to which it bears a close general resemblance. 
It has been caught several times together with Pandalus borealis 
in different localities along our coast. On the 25th September 1907 
ten specimens were captured in the Byfjord outside Bergen at å 
depth of 400 meters. These consisted of both males and females 
and were caught together with åa number of specimens of Pandalus 
borealis. I have also taken them in the Westland fiords; as for 
instance in the Herløfjord (Bergen 1 specimen), Nordalsfjord near 
Florø (90 m. 2 specimens), and Frøisjøen north of Florø (250 m. 
I specimen). Curator NorpGAARD has taken them in northern 
Norway in the Balstadfjord (150 m. 2 specimens) and in the Salten- 
fjord (320—380 m. 1 specimen). | have found them too on the 
1) The same shaped cincinnuli have almost invariably been found in several 
other species of Carids, whenever they have been examined. Of these we may 
mention Pandalus leptoceros var. Bonmieri, P. annulicormis, P. propinquus, Pon- 
tophilus morvegicus, Pasiphaea tarda &e. No eineinnuli were found in Selero- 
crangon ferox. 
