Plate 5. 



32 



38 



46. 



Antarctic (Discovery) Exp 



WGR del. Huth scset imp 



CEPHALODISCUS NIGILESCENS. (Figs. 23- 

 -30 &. 37-40), CEPHALODISCUS HODGSONI . (Figs. 31-36 8, 41- 4-7) 



