(520 . TAGE SKOGSBERG 



proportion between the length of the longest natatory bristles and tliat of the exopodite is about 

 4 : 3. The first joint is furnished proximo-distally with a dense longitudinal row of short, fine 

 spines along about a f[uarter or a third of its length and close to this row there is a larger or 

 smaller number of scattered spines of the same type (about the same as in figs. 12 and 13 of 

 ('. ftymmetrica). E n d o p o d i t e: First joint: The processus mammillaris has no distal verruca. 

 The a- and b-bristles have no long hairs, in most cases they are quite bare. Second joint: The 

 c- and d-bristles are most often somewhat shorter than this joint and have short fine hairs or 

 are almost quite bare. The e-bristle is exceedingly short. The g-bristle is about as long as or 

 slightly shorter than the protopodite; it grows gradually narrow distally and is furnished with 

 rather sparse short fine hairs. The f-bristle is about a quarter or a third shorter than the g-bristle 

 and, like it, is not widened distally and is bare. Third joint: The clasping organs are of about 

 the same types as are reproduced by (t. W. Mi'l.hKH, 1906 a, pi. IX, figs. 22 and 23 (see the 

 adjoining fig. 6). The h-, i- and j-l)ristles are suh('([ual, in most cases somewhat less than half 

 the length of the g-bristle; along the greater part of their length they are about as wide as the 

 proximal part of the f-bristle; they are only slightly widened proximally and have only indic- 

 ations of shafts; they are bare. 



Mandible: — Protopodite: Coxale: The number of teeth on the toothed 

 edge of the pars incisiva varied between seven and ten in the specimens investigated by me. 

 Distal tooth-list: This is rather slightly narrower than the toothed edge of the pars incisiva and 

 is of about the type reproduced by me in fig. 17 of C. symmetrica, but somewhat variable. It 

 is armed with a simple row of about 14 — 18 teeth. The two posterior ones of these teeth are 

 rather high and powerful, the posterior one of them is in most cases smooth, the other is most 

 fre([uently furnished with a few small secondary teeth. The others, 12 — 16, are somewhat 

 lower than the former ones and are smooth; they are either sube(pial and somewhat rounded 

 distally (about the same as the middle teeth in the figure just mentioned) or else the anterior 

 ones are somewhat larger and wider than the others (about the same as in the figure just men- 

 tioned). Proximal tooth-list: This is rather slightly narrower than the distal one and is armed 

 with a somewhat varying number (about 14 — 20) of teeth, arranged in a simple row. As in 

 the case of the distal tooth-list, the two posterior of these are rather high and powerful, like 

 tusks, the others vary rather as to their development, being sometimes of about the same type 

 as the corresponding teeth on the distal tooth-list, sometimes of other types, as, for instance, those 

 shown in the adjoining fig. 7. This tooth-list is furnished on the inside with numerous fine, 

 short spines, situated close together. The masticatory pad is simple or at any rate without any 

 distinct division into lobes; it is comparatively wide, about as wide as the tooth-lists; it is square 

 distally and is armed with exceedingly numerous rather small spines. The lancet-bristles are, 

 as C. Glaus pointed out, 1891 a, p. 63 ,,in dem dichten Borstensaum mehr oder minder ver- 

 steckt". Basale: The six teeth on the distal edge of the endite are furnished with exceedingly 

 fine serrulation. The single tooth on the outside of this process is of about the same size and 

 type as in my fig. 19 oi C. symmetrica, finely serrated only along the distal half of the anterior 

 edge. Tlie c p i p o d i a 1 a p p e n d a g e is represented only by an exceedingly small 

 (scarcely observable with REICHEirr's ocular 4, LElTZ's immersion Vj,) verruciform process. 



