96 Transactions.-— Zoology. 
Genus Cyclops, Müller. 
Anterior antenns forming hinged clasping organs in the male. Pos- 
terior antenne 4-jointed, without a secondary branch. Mandible dilated 
and toothed at the extremity, palp minute bearing two long sete. Maxille 
strongly toothed. Swimming-feet with both branches 8-jointed.* 
a.— Anterior antenna 17-jointed. 
1. Cyclops gigas, Claus. Pl. IX., figs. 8-10. 
C. gigas, Claus. Die freilebenden Copepoden (1863), p. 100. _ 
Anterior antenne reaching to third segment of the body, tapering in 
width somewhat uniformly, relative length of joints as follows :— 
Lo oh 9 4 5 6 7 8, 9, 10, 3, 13, 15; 344 35-14, nN 
Mois 66.5. 8.6. 8. 8.3. : 
last joint terminated by about six sete. 
Posterior antenne strongly 
developed. Mandibles strongly toothed. Sete of the swimming feet. 
densely plumose ; spines pectinately toothed. Fifth foot 2-jointed ; basal 
joint broad, bearing a single long seta at the outer angle ; second joint 
longer, narrow, with a long and a short seta. Abdominal segments 
pectinately toothed on their posterior margins. Caudal segments about 
8 times as long as broad, slightly exeeeding in length the three preceding 
abdominal segments. Central caudal sete longer than abdomen ; outer 
three-fourths the length of central; inner very short. Length 45 inch. 
Hab. Tomahawk Lagoon, near Dunedin. 
Our form agrees in all respects with the European species, and the 
description is almost a reproduction of that in Brady's Monograph, vol i., 
p. 105. 
f.—Anterior antenna 14-jointed. 
2. Cyclops nove-zealandie, G. M. Thomson. (Trans. N.Z. Inst., vol. xi., 
p. 258. 
Numerous speeimens (all males) were sent to me from Canterbury by 
Mr. Charles Chilton. 
i y.— Anterior antenna 12-jointed. 
3. Cyclops serrulatus, Fischer. Pl. XIL., figs. 19-22. 
Cephalothorax oval, not greatly exceeding in length the rather slender 
abdomen. Anterior antenne reaching to the middle of third body segment, 
tapering gradually to the extremity; the relative lengths of the joints being 
about as follows :— 
l, 2, 3, 4, 5, 6, 35 8, 9, 10, tl; 12, 
20 . T, 6: — I3. 6: 5. 10. 16. 13 IT í 
Fifth pair of feet very small, 1-jointed, subtriangular, dilated outwards, 
bearing 2 setæ and a ciliated lancet-shaped spine. Caudal segments much 
* Bee “ Trans. N.Z. Inst.," vol. xi., p. 258, ves 
