246 TAOK SKOGSBERG 



First antenna: — This is long and slender and eight-jointed. The sensory bristle 

 (^f the fifth joint has thirteen sensory filaments. The b- and c-bristles of the males are 

 generally characterized by quite the same modification as described above, p. 223. for the 

 siib-genus Dolor ia; in exceptional cases the former of these two bristles has only one filament 

 with a series of small distal suckers; see Cypridina meditenanea, G. W. MtJLLER, 1894, pi. 2. 

 fig. 20. The end bristles are sometimes rather slightly longer in the males than in the females, 

 sometimes in the former sex bristles f and g are considerably longer than in the latter. 



Second antenna: — The protopodite has a medial-distal bristle. The 

 bristle on the second joint of the exopodite is rather powerfully developed. The natatory 

 bristles on the third to the ninth joints have no trace of spines. The third to the ninth joints 

 have basal spines. The endopodite is similarly developed in males and females, being 

 either comparatively well developed, rather elongated and three-jointed or more or less reduced, 

 with a reduction in the number of joints. The bristle of the end joint is comparatively long. 



Mandible: — Protopodite: The endite on the coxale is weakly bifurcated 

 distally; some of its spines are rather strong, especially those situated mediaUy-distaUy; at 

 least some are arranged in rather distinct groups. Apart from the little bristle situated dorsally 

 on this process this joint has no bristles. Basale: Of the ventral bristles one d-bristle is very 

 long, has numerous long secondary bristles and is furnished with short hairs distally; the others 

 are of moderate length or short and have short, fine hairs or are naked. Dorsally this joint 

 has three bristles, Endopodite: The first joint has four bristles ventrally. The end 

 joint has seven bristles, of which the two middle ones are the most powerful, claw-like, and 

 of about the same length and strength as each other. 



Maxilla: — Protopodite: The coxale has a single bristle dorso-distally with 

 long, fine hairs. There is a single bristle proximally on the outside of the third endite. The 

 bristles on the boundary between the basale and the first endopodite joint vary somewhat; 

 sometimes three are developed, one close to the exopodite, one medially at about the middle 

 of the palp and one on the anterior edge of the palp; this last bristle is, however, sometimes 

 missing. There is a rather large lameUiforni e p i p o dial a p p e n d a g e dorso-distally 

 on the coxale. The exopodite is comparatively well developed, with close, fine, long 

 hairs and not displaced distally. The endopodite is broad and of moderate length. 



Sixth limb: — The second exopodite joint is rather short, somewhat rounded 

 and has numerous bristles. Its posterior bristles do not dominate strikingly over the other 

 bristles. (G. W. MtlLLER states, 1894, p. 68, that the e p i p o d i a 1 a p jj e n d a g e of the 

 protopodite in the genus Cypridina, s e n s u G. W. MCllerI, is always characterized by four 

 bristles; that this is not the case is shown by the descriptions of the species given below.) 



Seventh limb: — This is furnished with rather numerous cleaning bristles, a 

 large number of which are placed close together distally, the rest scattered irregularly along 

 the distal part of the limb. With regard to the position of these latter bristles it is to be noted 

 that only exceedingly seldom or perhaps never is there more than one bristle on the same side 

 of the same joint. The end comb consists of a moderate number of rather strong teeth, some 

 nitlioi- long, distally loundetl or more or less pointed distal teeth, smooth except for a little 



