283 



186. Cletodes limieola, Brady. 



(PL CXCV). 

 Cletodes limieola, Brady. Monogr. of British Copepoda, Vol. II, p. 90, PI. LXXIX. figs. 1 12. 



Specific Characters. Female. Body not very slender, but gradually taper- 

 ing behind, with the segments somewhat raised dorsally. Cephalic segment rather 

 large and deep, with the lower edges abruptly curved in the middle; rostral plate 

 broadly triangular, with the tip slightly bilobed. Urosome nearly as long as the 

 anterior division, and having the anterior segments acutely produced at the lateral 

 corners; last segment about the length of the preceding one, anal opercle distinctly 

 denticulate. Caudal rami scarcely longer than the anal segment, and exhibiting 

 a somewhat peculiar shape, being considerably thickened at the base, with a 

 rounded dorsal elevation, extremity narrowly exserted, middle apical seta only 

 slightly exceeding the length of the ramus itself, dorsal seta issuing from about 

 the middle. Anterior antennae of moderate size, with the 3rd joint about the 

 length of the 2nd. terminal part half as long as the proximal. Posterior an- 

 tennse of the structure characteristic of the genus. Anterior maxillipeds exceed- 

 ingly strong, and armed with 3 claw-like spines in addition to the bristles. Pos- 

 terior maxillipeds feeble in structure, with the hand narrow oblong in form, and 

 clothed inside with delicate cilia, dactylus thin and likewise ciliated inside. 1st 

 pair of legs only differing from the succeeding ones in the presence of a slender 

 spine inside the 2nd basal joint, and in the absence of a seta inside the middle joint 

 of the outer ramus. Inner ramus of 2nd pair of legs with only 2 setae on the 

 tip, in the 2 succeeding pairs with an additional spine outside. Last pair of legs 

 rather fully developed, distal joint narrow, sub-linear in shape, and densely ciliated 

 on both edges, with 5 slender plumose seta3, 2 issuing from the tip, 2 from the 

 outer edge, and 1 from the inner edge; inner expansion of proximal joint rather 

 short, with 5 similar setse. Ovisac comparatively small, rounded, with a very 

 limited number of ova. 



Colour whitish grey. 



Length of adult female 0.62 mm. 



Remarks. This is the type of the present genus, having already been 

 recorded by Prof. Brady under the above name in the year 1872. The compara- 

 tively stout form of the body and, the peculiar shape of the caudal rami will 

 serve for easily recognising this species. 



Occurrence. I have met with this form occasionally at Grimstad and 

 Farsund, south coast of Norway, in a depth of about 20 fathoms, muddy bottom. 

 Only female specimens were found. 



Distribution. British Isles (Brady). 



