HAP. in.] THE CRUISES OF THE ' PORCUPINE: 127 



he genus Caprella, the odd-looking group of skeleton 

 hrimps which fix themselves by their hind claspers, 

 isually in this locality to branching sponges, and wave 

 heir gaunt grotesque bodies about in the water. 



JEga nasuta, NORMAN (Fig. 20), is another new 

 ies, one of the ( normal ' isopods. Much larger 

 pecimens of this curious genus are however known 

 n the British coasts, usually semi-parasitical on large 



hes. 



Arcturus baffini, SABINE (Eig. 21), is another of 



e 'isopoda normalia' normal to a certain extent in 

 s structure, but very peculiar in its appearance and 



Ki<i. 20. JEyu, nasuta, NORMAN. Slightly enlarged. (No. 55. 



abits. Arcturus has, like Caprella, the habit of 

 inging to some foreign body by its claspers, and 

 taring up the anterior part of its body in a queer 

 lanner ; but it has in addition a pair of enormously 

 eveloped antennae, and to these the young cling by 

 ieir claspers, and range themselves along like a 

 uple of living fringes. Idotea (Arcturus) baffini 

 as first described in the Appendix to Captain Parry's 

 mrth voyage. This, or a nearly allied species, 

 *ems to occur also in the Antarctic seas. Sir James 

 lark Ross remarks, 1 that in dredging at a depth 



1 A Voyage of Discovery and Research, vol. i. p. 202. 



