328 T.ViiK SlvOGSBEHG 



distally; the tongue of tlie distal bell is also rather sharply cut off distally (about the same type 

 as is shown in fig. 25 of C. (Vargida) norvegica); proxinially of the bells these bristles are smooth. 

 The end comb consists of fiye narrow, bare, rather weak teeth, one central tooth and two teeth 

 placed symmetrically on each sidi» of this. The central tooth is long, not quite so long as the 

 height of the limb, and is rather pointed distally. The two proximal teeth are considerably 

 shorter; the one situated most proxinially is the shortest, being only about a quarter or a fifth 

 of the length of the central tooth; distally they are somewhat rounded. The concayity dorsally 

 near the end comb has on its dorsal edge a reduced verruciform process. 



Penis (fig. 14): — This is of the type that is characteristic of the sub-family. See the 

 accompanying figure for details. A yery large gland situated ventrally in the penis has its exit 

 on the ventral process of the pincers. 



F u r c a: — This is of the same type as in the type species. Tt differs in the two following 

 characters from this as it is represented by G. W. Muller, 1906 b, pi. Ill, fig. 5: all the claws 

 are furnished with teeth; the second to the fifth teeth on claws nos. 4 to 8 are considerably 

 coarser than the distal ones. 



The u p jj e r lip agrees with that of the type species. 



The r o d - s h a p e d o r g a n (fig. 5) of moderate length, rather thick, sliglitlv pointed 

 distally. 



The late r a 1 eyes are, as in the case of the type species, situated somewhat above 

 the middle of the sliell. 



Female: — 



Shell: — Length: 1,6 — 1,7 mm. Lenght : height, about 1,75:1. Seen from the side 

 (fig. 2) it shows fairly close agreement with the shape of the shell in the tvjje species, the prin- 

 cipal differences being that the ventral corner of the rostrum is somewhat more pointed and that 

 the posterior beak-shaped process is developed rather more powerfully; this process is only 

 slightly smaller tlian that of the male and has about the same shape. The surface of t h e 

 shell is similar to that of the male. Seen from inside (fig. 3): Medial bristles: These 

 seem to be somewhat fewer than in the type species; their number seems, however, to vary rather 

 considerably. From 14 to 26 were observed on the rostrum (the maximum number is shown 

 in the accompanying figure); these were arranged in two almost parallel rows, the posterior 

 of which, situated along the posterior edge of the rostrum, is very sparse dorsally, some- 

 times represented at this part by only a few solitary bristles. The bristles on the list behind 

 the rostral incisur are considerably more sparse than is shown in the figure of the type species. 

 On tlie right valve from 12 to 14 spines of the same type as in the male were observed posteriorly 

 on the list; of these from none to three of the ventral ones were very small. On the left valve 

 the spines may apjiarently be quite absent. The bristles on the part of the list that has spines 

 seem to be somewhat fewer than in the male. 



First antenna: — This, like that of the male, has seven joints; at least in some 

 cases, however, the fifth and sixth jc^ints seem to be less closely united than in the other sex. 

 The joints have a])out the same relative pro])(»rtions as in the male and the bristles on the third, 

 fourth and sixth joints and the a-bristle on the seventh joint also show a rather close agreement 



