Studii'S on marine Ostracods 685 



tig. 27 of C. symmetrica). The e x o p o d i t e is the same as in this figure. The protopudite 

 and the first exopodite joint are partly furnished with long hairs. 



Sixth limb: — This is about the same as in iny fig. 29 of C symmetrica, but, as is 

 the case in most of the other species of this genus, the ventral bristle on the end joint is furnished 

 with long secondary bristles. 



The end joint of the seventh limb has spines. 



Penis: — This is of about the same type as in my fig. 32 of C. symmetrica, only being 

 perhaps somewhat less elongated. At about the middle it is furnislied with about six oblique 

 transverse muscles, distally of which there are no muscles. The copulatory appendage is rather 

 narrow, resembling in shape the t}^e reproduced for C. Haddoni, but without serrulation. 



F u r c a: — Behind the claws there is an unpaired, moderately long, long-haired bristle, 

 of about the type shown in pi. XIX, fig. 14, C. Clals, 1891 a. 



Rod-shaped organ: — The shaft reaches to about the proximal boundary of 

 the third joint of the first antenna or somewhat farther. The capitulum is of about the t}^e 

 reproduced by G. W. MttXER (see the accompanying fig. 3) and is not quite so long as the second 

 joint of the first antenna. 



Upper lip: — The part between the combs on the posterior ventral edge of this 

 lip is of about the type reproduced by me in my fig. 4 of C. Bdgicae. The p a r a g n a t e s 

 are about the same as in C. symmetrica. 



Female: — 



Shell: — Length: According to G. W. MtiLLER, 1,6 — 1,7 nmi.; two females from 

 the Indian Ocean that were investigated by this writer measured only 1,4 mm.; cf. p. 682 above. 

 The lengths of the specimens investigated by me varied between 1,2 and 1,65 mm. Seen 

 from the side the shell is of about the type reproduced by C. Claus, 1891 a, pi. XIX, 

 fig. 2, consequently somewhat more elongated than in the male. Seen from below it 

 is of about the type reproduced in fig. 3 of the plate just mentioned, i. e. with its shoulder vault 

 less strongly developed. In other respects it is about the same as in the male. 



First antenna: — This is of the type reproduced by C. Claus, 1891 a, pi. XIX, 

 fig. 6, but has a well developed dorsal bristle on the second joint; this bristle has short hairs 

 and is almost as long as the second joint. The e-bristle, which is not widened and sword-shaped 

 distally, has on the anterior side of the proximal half a moderate number of rather short hairs. 

 The second joint is partly furnished with short hairs; the distal part of this limb is fxirnished 

 more or less abundantly with rather short hairs. 



Second antenna: — The p r o t o p o d i t e is somewhat weaker than in the 

 male. The proportions of the e x o p o d i t e are about the same as in the male. E n d o- 

 p o d i t e: This has three joints; the third joint is, however, extremely small; cf. G. W. Mt'LLER, 

 1906 a, p. 98. The bristles on the first joint are the same as the male. Second joint: Theg-bristle 

 is either of about the same type and relative length as in the male or else it is slightly sh(.)rter. 

 The f-bristle is about a (|uarter or a fifth shorter than the g-bristle and is also of the same type 

 as in the maU>. The c- and d-bristU's arc often quite absent, sometimes one of them is developed; 

 see G. \V. Mi'l.LKK, 1906 a, pi. XXIII, tig. 33. Tliiril joint: The h-, i- and j-bristlcs are of some- 



