202 
with two small setae near the distal end of the inner margin. The distal joint is elongate and 
rather narrow. The distal end of the joint is furnished with five spines of various degrees of 
stoutness (Plate LXI, fig. 13). 
Note. — In the explanation of this plate, fig. 13, is given as first foot and fig. 14, the fifth foot. Fig. 13, should be read fifth 
foot and fig. 14, first foot. g 
Male unknown. 
This species appears to be closely related to Harpacticus gracilis Claus, but it can 
readily be separated by the quite distinct shape and armature of the inner expansion of the 
proximal joint of the fifth pair of feet. 
Occurrence. — One specimen was obtained from the plankton collected at the surface 
at Station 35 (Paternoster Islands), on March 28th. 
3. Harpacticus glaber Brady. Plate LXI, Figs. 15—21. 
Harpacticus glaber Brady, 1899, p. 44, pl. XII, figs. 6—11. 
One female apparently identical with the above species was obtained from the plankton 
collected at the surface at Station 35 (Paternoster Islands), on March 28th. 
The apex of the expanded portion of the proximal joint of the fifth pair of feet is 
armed with three moderately strong setae. The distal joint is oval in outline and is comparatively 
short. The antennules are not so elongate as in Harpacticus claust. Brapy’s single specimen 
is described as having eight-jointed antennules, but the antennules of the present specimen 
are nine-jointed. The eighth joint is short and agrees fairly well with the length of the last 
joint of Hlarpacticus glaber. It is quite possible that the antennules of Brapy’s specimen may 
have been imperfect. The shape and armature of the inner expansion of the proximal joint of 
the fifth pair of feet is quite distinct from any of the other known members of the genus 
Flarpacticus, or its closely related ally 72grzopus. Hapacticus glaber is the only known species 
with three setae arranged closely together on the apex of the inner expansion of the basal 
joint of the fifth pair of feet. The distal ends of the ventral margin of the thoracic segments 
of this species are broadly rounded. 
Length of ‘Siboga’ female — .56 mm. 
Brapy’s single specimen was found in surface plankton collected in Otago Harbour, 
New Zealand. 
27. Family PELTIDIIDAE. 
Genus Peltidium Philippi, 18309. . 
The conspicuous anastomosing chitinous bands that traverse every segment of the animal, 
assist very considerably in the separation of the members of this genus from any of the other 
genera belonging to the family. The endopodite of the first pair of feet is comparatively broad 
and two-jointed.. The fifth pair of feet is two-jointed and is entirely obscured, when viewed from 
above, by the very wide genital segment. 
The genus Ozescedium Criavs (1860) and the genus Reticulina CLEVE (1901) are both 
202 
