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to the sub-section C. dactylopoda, which has already been treated of. I am now of 

 opinion, however, that the structure of the 1st pair of legs, being subjected to 

 great variation even in nearly-related forms, cannot properly be taken as a more 

 general systematic character. 



Gen. 58. CletOdeS, Brady, 1872. 



Generic Characters. Body more or less slender, cylindrical or tapering 

 behind, with the segments sharply marked off from each other and armed at the 

 hind edge with scattered, somewhat scale-like denticles. Integuments rather coarse. 

 Cephalic segment produced in front to a broadly triangular rostral plate. Caudal 

 rami more or less produced, each carrying outside, in front of the middle, 2 closely 

 juxtaposed bristles, apical setse comparatively short. Eye distinct. Anterior an- 

 tennse (in female) 5-articulate, and clothed with strong, partly ciliated setae, terminal 

 part bi articulate., with the last joint much the larger. Posterior antennas rather 

 strongly built, but with the outer ramus rudimentary, being replaced by a single 

 ciliated seta. Mandibles well developed, palp uniarticulate, resembling that in 

 Laophonte. Maxillae with the masticatory part divided into 3 very coarse teeth, 

 exopodal and epipodal lobes generally distinct. Anterior maxillipeds very strongly 

 built; the posterior ones, on the other hand, rather feeble. 1st pair of legs only 

 slightly differing in structure from the succeeding ones, inner ramus shorter than 

 the outer, and biarticulate, distal joint much the longer. Last pair of legs with 

 the distal joint long and narrow, inner expansion of proximal joint, however, as 

 a rule quite short, setaa of both joints generally long and plumose. Ovisac single. 



Remarks. This genus was established by Prof. Brady in the year 1872, 

 to include a species, C. limicola, found by him off the British coast. In recent 

 time several new species have been added, but some of these in my opinion ought 

 to be discarded and referred to other nearly-allied genera. In the restriction here 

 adopted, the genus is chiefly characterised by the rudimentary condition of the 

 outer ramus of the posterior antenna;, by the strong development of the oral parts, 

 and partly also by the structure of the legs. 5 distinct species referable to this 

 genus will be described below. 



