studies on marinu Ostracods 483 



Sixth 1 i 111 1) (fig. 13) : — The posterior edge is in most cases almost straight; the poste- 

 rior ventral corner is, however, well rounded; 23 — 28 postero-ventral bristles, six antero-ventral 

 l)ristles; the anterior edge has two bristles. 



The seventh limb (fig. 14) is practically of quite the same type as in the preceding 

 species. From seventeen to twenty cleaning bristles, from eight to ten on each side, were 

 observed. On one specimen only two bells were found on one cleaning bristle. Each end comb 

 consists of from sixteen to eighteen teeth. 



F u r c a : — This has ten claws, of which the eight anterior ones may be denoted as 

 main claws. The two anterior main claws have no basal teeth ventrally. The secondary claws 

 are annulated. 



The lateral eyes are well developed. The median eye is smooth. 



Male unknown. 



Remark: — This species resembles very closely with regard to the shape of its shell 

 A. australis, Ct. S. Bhady, 1890, p. 515, pi. IV, figs. 1 and 2, G. S. Brady, 1898, p. 431, 

 pi. XLIII, figs. 1—8 and Th. Scott, 1912 a, p. 586, pi. XIII, figs. 18, 19. This species of Brady's 

 is certainly not a real unit, as is shown, among other things, by the length of the shell, 2,1 mm., 

 Brady, 1890, 1,4 mm., Brady, 1898, 2,75 mm., Scott, 1912a. It is quite impossible to decide 

 the relation of the species described by me above to the specimens on which these three 

 accounts are based, on accoimt of the deficiency of the descriptions given by the above writers. 



Habitat: — South Georgia: S. A. E., Station 34, off the mouth of Cumberland 

 Bay, lat. 54" 11' S., long. 36" 18' W., (t y p e - 1 o c a 1 i t y); 5. VI. 1902; depth 252—310 m.; 

 greyish clay with scattered stones; temperature at the bottom, + 1,45" C: 7 mature females 

 and 1 male juvenis; R. M. S. 163. 



Tierra del F u e g o: S. M. E., Straits of Magellan, Puerto Condor; 26. 11. 1896; 

 depth., 70 m. : one female larva; R. M. S., on slides. 



Type-specimen on slides in the collections of R. M. S. 



Asterope Mulleri''^ n. sp. 



Ci/lindroleberis teres, G. W. MULLER, 1894, p. 220, pi. 4, figs. 13, 30, 43. pi V, figs. 15, 

 24, 25, pi. VIII, fig. 5. 



Description: — F e m ale: — 



Shell: — Length, 1,37 — 1,41 mm.; length : height about 1,42:1; length : breadth 

 about 2:1. Seen from the side (fig. 1) it is somewhat pear-shaped, with its greatest 

 height just behind the middle and the back part strikingly larger than the front. The dorsal 

 and ventral margins are almost of the same shape, moderately and uniformly curved, somewhat 

 flattened anteriorly; they pass evenly into the anterior and posterior margins. The posterior 

 parts of the dorsal and ventral margins form, together with the posterior margin, almost a semi- 



* This species is caiied alti.T Professor G. W. MCller, our foremost investigator of the Ostracod group. 



