132 



in 3rd and 4th pairs with only a single natatory seta inside. Last pair of legs 

 poorly developed, distal joint very small, with some of the marginal setae spiniform. 

 RemarTcs. This new genus is founded upon the form recorded by Glaus 

 as Dactylopus flavns, which on a closer examination has proved to differ in some 

 of the anatomical details rather conspicuously from the other species of the old 

 genus Dactylopus, so that it more properly ought to be generically separated. 



84. Daetylopodella flava (Glaus). 



(PI. LXXXI). 

 Dactylopus flavus, Clans, Die Copepoden-Fauna von Nizza, p. 28, PI. Ill, figs. 13 16. 



Specific Characters, Female. Body short, pyriform in outline, with rather 

 strongly chitinized integuments. Cephalic segment very large and broad, fully 

 twice as long as the 3 succeeding segment combined, dorsal face evenly vaulted; 

 rostrum rather strong, pointing straight below, tip blunted. Epimeral plates of 

 the 3 succeeding segments small, rounded behind. Last segment of metasome 

 considerably narrower than the preceding ones. Urosome scarcely attaining half 

 the length of the anterior division and slightly tapered behind; posterior edge of 

 the segments finely spinulose ventrally. Caudal rami broader than they are long, 

 middle apical setse rather elongated, innermost seta small and simple. Anterior 

 antennae composed of 6 joints only, 2 of which belong to the distal part. 1st 

 pair of legs with the outer ramus shorter than the proximal joint of the inner, 

 terminal joint lamellar, with the apical claws very slender and gradually increas- 

 ing in length inwards, seta attached inside the claws much elongated; inner ramus 

 with the seta of the proximal joint attached beyond the middle, distal joint short, 

 slightly widening towards the tip, apical claws very strong, falciform, and distinctly 

 denticulated on the concave edge. Spines of the outer ramus in all the legs densely 

 pectinate outside. Last pair of legs with the distal joint very small, subcordate, 

 with 5 very unequal and partly spiniform marginal seta?; inner expansion of 

 proximal joint rather broad and likewise provided with 5 marginal setse, the outer- 

 most but one much longer than the others. Ovisac comparatively small. 



Male agreeing with the female both in general form and structure, though 

 exhibiting the usual sexual differences. Anterior antennae very stout and appa- 

 rently only composed of 4 joints, the penultimate much dilated, vesicular, the last 

 hamiform and very mobile. Inner ramus of 2nd pair of legs tipped with a strong 

 spine. Last pair of legs resembling those in female, but having the inner expansion 

 of the proximal joint much less prominent and only provided with 2 marginal setse. 



