90 AUSTRALASIAN ANTARCTIC EXPEDITION. 
angles; rostrum short and undivided; abdomen composed of four nearly equal segments, 
scarcely one-fourth as long as the metasome; furcal plates about as long as the last 
abdominal segment. Inner branch of the posterior antenna shorter than the outer 
branch; which bears on the inner side of its first joint a rather conspicuous hook-like 
process. The feet consist on each side of a stout basal joint at the free end of which 
are attached an endopodite and exopodite, each of a single joint, the outer about three 
times as long as the inner, dagger-like with three small apical spines; the inner branch 
small and bulbous in shape.—One specimen only seen, from 100 fathoms. Station 14. 
The fifth pair of feet agree very closely with figures of the same limb of Aetideus 
armiger given by Dr. T. Scott in his paper on Entomostraca from the Gulf of Guinea, 
but otherwise there seems to be little or no similarity between the two species. This 
single specimen was very imperfect, all the swimming feet being fragmentary; possibly 
it may represent an immature state of a Gaetanus. 
Genus EUCHIRELLA Giesbrecht, 1888. 
HUCHIRELLA PLUMOSA sp. nov. 
(Plate II, figs. 14-19.) 
As regards the basal spines of the fourth feet this species is somewhat like EF. 
maxima, Wolfenden, as figured by Mr. Andrew Scott, but has two conical processes 
instead of the single one of #. maxima; the abdomen of the female is also quite dis- 
similar in the two species, being in Z. plumosa quite without marginal serratures. The 
apical spines of the swimming feet are longer than the last joint of the exopodite, very 
strongly toothed on the outer and densely ciliated on the distal half of the inner margin ; 
the basal joints of the first pair of feet bear dense fascicles of setee internally; the furcal 
setee and those of the several appendages are finely plumose. The locality of the 
specimens has been lost (Station 5.). 
HUCHIRELLA TUMIDA sp. nov. 
(Plate IIT, figs. 7-12.) 
Length of female, 2-2 mm. Branches of the fifth pair of feet in the male of equal 
length, apical joint of the exopodite curved and crenulated on its outer margin; apical 
spines of the swimming feet barely as long as the last joint of the exopodite, the outer 
margins finely pectinated. The female specimen here figured was very much damaged, 
and the feet of the fourth pair could not be found. Taken at Stations 13 and 8. 
Genus PARAnucHamTA A. Scott, 1909. 
This genus was proposed by A. Scott to comprise those Euchetiform species 
which differ from the typical form in having the terminal setze of the anterior maxillipeds 
minutely pectinated in lieu of bearing long bristles, the males also being slightly different 
as to the fifth pair of feet. 
ANUNOHTIW wh FHANW WHDILYN 
