ENTOMOSTRACA OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 543 
Fam. KuTERPINID. 
Genus Huterpina, Norman, 1903. 
Syn. Huterpe, Claus, 1863 (name preoccupied). 
Euterpina acutifrons (Dana). 
1847, Harpacticus acutifrons, Dana, Proc. Amer. Acad., Boston, vol. i. p. 153. 
The only gathering in which this species occurred was from Station 65 in 
6° 52’ S., 34° 32’ W. 
Fam. CLYTEMNESTRID&. 
Genus Clytemnestra, Dana, 1847. 
Clytemnestra scutellata, Dana. (PI. XIII. figs. 11 and 12.) 
1847, Clytemnestra scutellata, Dana, Proc. Amer. Acad., Boston, vol. i. p. 154. 
This specics was observed rather sparingly at Stations 14, 32, 33, and 39, 21° 28’ N., 
22° 40’ W., to 6° 43’ N., 25° 48’ W., all in the North Atlantic. ‘This species may 
be distinguished from Clytemnestra rostrata (Brady) by the different structure of the 
antennules and caudal rami. Fig. 11, Pl. XIII, shows the end-joints of one of the 
- antennules, and the caudal rami are represented by fig. 12. 
Fam. Harpacticip&. 
Genus Harpacticus, M.-Edw., 1838. 
Harpacticus fucicolus, new species. (Pl. VIII. figs. 20-24.) 
Female.—In its general appearance the female of this species is somewhat similar 
to Harpacticus gracilis (Claus). 
The antennules are moderately slender and composed of nine joints; the first four 
are of moderate size and subequal, but the third is rather longer than any of the other 
three ; the remaining five joints are small, and together are scarcely equal to one-fourth 
of the total leneth—the penultimate joint is the smallest. Antenne small, the outer 
ramus short and composed of two joints. Mandibles and other mouth organs nearly as 
in Harpacticus gracilis. 
First pair of thoracic legs slender; the outer ramus is considerably elongated, but 
the inner one reaches only to about the end of the first joint of the outer ramus; the 
armature of both rami is rather feeble. The next three pairs are somewhat similar to 
those in Harpacticus gracilis. 
In the fifth pair, the inner portion of the basal joint is not much produced; it is 
provided with four setee ; one springs from the inner margin and three from the broadly 
