CLETODES. 89 
Genus 20. CietopEs, Brady (1872). 
(Cletodes, Brady, Nat. Hist. Trans. Northumberland and Durham, 
1872; Boeck, Nye Slegter og Arter af Saltvands-Copepoder, 
1872. Lilljeborgia, Claus, Die Copepoden-Fauna von Nizza, 
1866. Orthopsyllus, Brady & Robertson, Ann.and Mag. Nat. 
Hist., 1873.) 
Animal resembling Laophonte in general appearance; 
abdomen as broad as the cephalothorax, and not 
distinctly separated from it. Anterior antenne short, 
4. to 6-jointed ; secondary branch of posterior antennze 
1-jointed, very small, or reduced to a few setz ; mouth- 
organs like those of Laophonte. First pair of feet 
small, non-prehensile ; inner branches of all the four 
pairs of swimming feet composed of two joints, the 
first of which is very short. [Fifth pair narrow, 
foliaceous. 
The characters which I formerly supposed to sepa- 
rate this genus from Lilljeborgia (Claus), do not, on 
further examination, hold good. There is mostly, if not 
always, a small branch attached to the lower antenna; 
and the inner branches of the swimming feet, though 
stated by Claus, in the generic definition of Lvillje- 
| are yet described in the 
text as 2-jointed; there is, therefore, scarcely any 
difference between it and Cletodes. The name Lillje- 
borgia, however, having been previously used for a 
genus of Amphipoda, must be discarded, as has already 
been done by M. Boeck, in favour of Cletodes, the term 
Orthopsyllus, which, in a previous memoir, was pro- 
33 
borgia, to be “ rudimentary, 
