REPORT ON THE CUMACEA. 9 



obsolete ; epipodite narrow, with digitiform gill-lobules arranged in a semicircle ; 

 terminal plate of exopodite membranous and exserted into a narrow flap. First pair of 

 gnathopoda rather strong, with penultimate joint greatly swollen. Second pair pediform, 

 only slightly differing from first pair of legs. The two anterior pairs of legs in female, 

 and all but the last in male, with well-developed natatory exopodites. Pleopoda quite 

 wanting in both sexes. Uropoda with the scape elongate, outer branch biarticulate, inner 

 uniarticulate. Telson wanting. 



Genus. 

 Campylaspis, G. O. Sars. 



LIST OF THE SPECIES. 



The following is a list of the species of Cumacea procured during the Challenger 

 Expedition : — 



CUMID.E. 



1. Cyclaspis auslralis, n. sp. 



2. „ pusilla, n. sp. 



3. „ exscidpta, n. sp. 



Vaunthompsoniid.e. 



4. Vaunthompsonia, meridional 'is, n. sp. 



Lampropid.e. 



5. Paralamprops serrato-costata, n. gen. et sp. 



Leuconid^e. 



6. Leucon assimilis, n. sp. 



7. „ tenuirostris, n. sp. 



8. Eiulorella abyssi, n. sp. 



DlASTYLIDjE. 



9. Diastylis stygia, G. 0. Sars. 



10. ,, horrida, n. sp. 



11. ,, erinaceus, n. sp. 



12. „ mystacina, n. sp. 



Cumellid^e. 



1 3. Nannastacus suhmii, n. sp. 



Campylaspim:. 



14. Campylaspjis pacifica, n. sp. 



15. ,, nodulosa, n. sp. 



(ZOOL. CHALL. EXP. — PART LV. — 1886.) 



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