ENTOMOSTRACA OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 561 
middle of the outer margin; two, close together, at the apex; and two, also close 
together, situated nearly intermediate between the apical sete and the outer one ; there 
is also a seta on the lower half of the mner margin, as shown in the drawing 
(fig. 28). Tail segments very short. 
Habitat.—In siftings from Gulf-weed collected by the Scotia off the Canary Islands 
on 29th June 1904; Station 537, 29° 54’ N., 34°10’ W. 
Fam. CANTHOCAMPTID2. 
Genus Amezra, Boeck, 1865. 
Ameira simulans, new species. (PI. VII. figs. 23-28.) 
Female.—Body resembling Amevra taw (Giesbrecht) in its general appearance. 
Length, 0°6 mm. 
Antennules composed of eight joints ; the second joint is large and nearly one and 
a-half times longer than the next, and about twice as long as the fourth joint, but the 
two end joints are very short. The approximate proportional lengths of the various 
joints are shown by the formula: 
Numbercof the joints lo 2) «3 4-5 6 7 
8 
Proportional lengths 6 11 8 6 4 5 2 2 
The first pair of thoracic legs, and also the following three pairs, are all somewhat 
similar to those in Amevra tau already referred to. 
The fifth pair are very small; the inner portion of the basal joint, which is trans- 
versally truncated at the end, is furnished with five setee—four of them on the trun- 
cated apex and one on the lower half of the inner margin; the second joint (or 
seoment) is tolerably expanded at the base, and tapers towards the bluntly rounded 
extremity ; this joint is also provided with five setee, one of which springs from the 
outer margin, and the other four from the rounded apex. 
Caudal rami very short. 
Habitat.—Scotia Bay, South Orkneys; collected in June 1903; Station 325, 
BO 43 42" %., 44° 38’ 33” W. 
Remarks.—The species recorded above has a tolerably close resemblance to A mezra 
tau, described by Dr Gizsprecut in his work Die freilebenden Copepoden der Kieler 
Fohrde, p. 117 (1882), but it differs in one or two important particulars, and especially 
in the form of the last pair of thoracic legs. 
Genus Parastenhelia, I. C. Thompson & A. Scott, 1903. 
Parastenhelia antarctica, new species. (PI. IV. figs. 25-33.) 
Female.—Somewhat similar to Parastenhelia anglica, Norman & Scott, in its 
general appearance. Length, 0°85 mm. 
Antennules composed of nine joints, the first two or three moderately stout, the 
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