ENTOMOSTRACA OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 341 



Fam. Halocypkid^. 



The Halocypridse being for the most part pelagic in their habits, are widely 

 dispersed throughout the Atlantic, Pacific, and Indian Oceans, but appear to be more 

 frequent in tropical regions. The species recorded here are chiefly from these regions, 

 and were collected by the s.Y. Scotia on the outward voyage to the Antarctic ; no 

 Halocypridse were observed in the collections from the South Orkneys. 



Genus Halocypris, Dana, 1852. 



IIalocyj)ris iriflata, Dana. (PI. XII 1. figs. 20-'M.) 



1852, Halocypris iiiflala, Dana, U.S. Kxplor. Exped., 18.37-1842, vol. siii. p. 1301, \A. xoi. fig. 8. 



1852, ,, brevirosiris, Dana, op. cit., p. 1.-.03, \A. xei. tig. 9. 



1906, „ inflata, G. W. Miiller, " Ostracoda," " Sihoga" JExped., p. 2. 



This species was obtained in gatherings from Stations 21, 26, and 59, the first 

 in 18° 28' N., 24° 28' W., the last in 2° 30' S., 32° 42' W. The specimen 

 represented by the drawing measures 1'65 mm. The species is widely distributed 

 in the Atlantic, the Pacific, and Indian Oceans, and appears to be subject to some 

 amount of variation, and has been described under several names (cf. G. W. Muller, 

 op. cit.). 



Halocypris globosa, Claus. (PI. XIII. fig. 82.) 



1874, Halocypris ylohosa, Clau.s, " Die Fam. Halocypriden," Schrifteu Zool. Inhalt, Heft i. (Wieu, 



1874), p. 7, Taf. 3, figs. 36 and 39. 

 1906, Halocypris globosa, G. W. Miiller, op. cit., p. 2. 



H. globosa was obtained in a gathering from Station 16, 20° 29' N., 

 23° 16' W., collected 29th November 1902. In this species the shell has a short 

 rotund form ; seen from the side, the dorsal margin is flattened, but the lower is 

 boldly arched in the form of a semicircle, the depth across the middle being equal to 

 about four-fifths of the length. The specimen represented by the drawing (fig. 32) 

 measured 'So mm. 



Genus Conchcecia, Dana, 1852. 



Conchcecia spinirostris, Claus. (PI. XIII. fig. 26.) 



1874, Conchcecia spinirostris, Claus, "Die Fam. Halocypriden," p. 6, Taf. 1, tigs. 1, 6(/, 8; Taf. 2, figs. 



11, 14, 15. 

 1890, Conchcecia p)on-ecta, Claus, Arbeit. Zool. Institut Wien, vol. i.x., Heft i., p. 12; Heft iii. (1891), 



p. 61, Taf. 7. 

 1896, Conchcecia spinirostris, Brady & Norman, Trans. Roy. Dublin Soc. (N.S.), vol. v. p. 689, 



pi. Ix. fig. 22. 

 1906, Conehaecia spinirostris, G. W. Miiller, "Ostracoda," " Siboga" Exped., p. 7. 



This widely distributed species occurred in surface gatherings from Stations 14, IG, 

 and 59 ; the first in 21° 28' N., 22° 40' W., the last in 2° 30' S., 32° 42' \V., collected 



(ROY. SOC. EDIN. TRANS., VOL. XLVIII., 587.) 



