ETTEOPEAN" FORMS OF THE CIEOLANIK^. 347 



4. CiEOLA]S"A ScHMiDTii, n. sp. (PL 33. figs. 2 a-2 c.) 

 Adult female and immature specimens. 



Eyes completely wanting ; the lateral margins of the head 

 show a kind of ridge from the base of the antennula to the front 

 angle of thorax, and the lower side of the head close inside that 

 ridge is conspicuously excavated. 



Erontal plate about as in C. horealis. Clypeus considerably 

 shorter than in C. horealis or G. neglecta, with the usual mar- 

 ginal furrows, but the area limited by these furrows is scarcely 

 convex. 



Antennula? nearly as in G. neglecta ; flagellum with about 

 twelve very short joints. 



Antennae do not reach fully to the middle of thorax ; flagellum 

 in the two largest specimens with about twenty joints. 



Epimera nearly as in G. neglecta, but those of seventh segment 

 a little less produced; the oblique furrow well developed on all 

 epimera, reaching their posterior margin. 



Seventh thoracic legs more slender than in the preceding 

 species ; otherwise nearly as in G. neglecta. Second joint strongly 

 flattened and considerably expanded, a little more than twice as 

 long as broad ; its outer margin and the ridge on the lower sur- 

 face closely set with plumose hairs, which are long at the margin, 

 much shorter on the ridge ; the inner margin is naked nearly to 

 the most distal, almost transverse short part, which is closely set 

 with exceedingly long plumose setae. Eourth joint as long as the 

 fifth and slightly shorter than the sixth. 



Last abdominal segment with a subbasal transverse impression 

 more pronounced than in the preceding species ; the lateral 

 margins rather feebly convex, not angular, with six pairs of distal 

 spines ; the end is more or less acute. 



Uropoda broader than in G. horealis, but less broad than in 

 G. neglecta. The endopod, which reaches slightly beyond the 

 tip of abdomen, is rather more than twice as long as broad? 

 without any notch at the end of the outer margin. Exopod 

 between four and three and a half times longer than broad, con- 

 siderably shorter than the endopod. 



Length of a female with marsupium 12 mm. ; the immature 

 specimen, parts of which are shown on the Plate, measures 9*5 mm. 

 in length. 



Occurrence. — Li 1895 an adult female and two rather small 

 specimens were taken by the ' Ingolf ' Expedition in the Davis 



