ISOPODA OP THE 'LIGHTNING' AND OmEE EXPEDITIONS. 141 



I. PI. D. Paranthura tenuis, G. O. Sars, pleon, from above. 



a.s. „ ,, upper nntenna. 



a.i. „ ,, lower autenna. 



gn\ „ ,, first gnalhopod. 



gn^- „ ,, second gnathopod. 



prp^. „ „ first perseopod. 



prp^. „ ; fourth pereeopod. 



II. L. Antheliira ahi/ssorum, n. sp., side view. 



c, D. ,, ,. head, from above. 



PI. D. ,, „ pleon, from above. 



PI. L. ,, ,, pleon, from the side. 



a.s, ,, ,, upper antenna. 



a.i. ., ., lower antenna. 



gn^. „ ,, first gnathopod. 



g7i^. ,, „ second gnathopod. 



prp^. ,, ,, fifth perseopod. 



III. a.s. Cyathura carinata (Kroyer), upper antennae, with last joints more highly 



magnified. 



a.i. „ „ lower antennae, with last joints more highly 



magnified. 



Ihi. ,, „ labium. 



m. ., „ mandible and palp. 



mx^. „ ,, first maxilla, and termination more highly 



magnified. 



mxp. „ ' „ maxillipeds. 



gn^. „ „ first gnathopod. 



PI. „ „ end of telson. 



VOL. XII. — PART IV. No. 9. — October, 1886. 



