1910.] BRITISn SPECIES OF OSTRACODA. 207 



1900. Candona lobipes Hartwig, Zool. Anzeiger, xxiii. no. 628, 



p. 570. 



1901. Candona lobipes Hartwig, (3) p. 94. 



Female. — Shell seen from the side (fig. 6) subreniform, greatest 

 height near the posterior extremity and equal to nearly two- 

 thirds of the length ; anterior extremity well rounded, posterior 

 gently rounded, almost subtruncate ; dorsal margin forming 

 a flattened arch, sloping with a gentle curve to the front, 

 much more abruptly backwards, ventral almost straight : seen 

 from above (fig. 7) the outline is regularly ovate, greatest 

 width equal to much more than half the length. Shell-surface 

 smooth but beset, especially at the ends, with numerous rather 

 long hairs and bearing a few scattered circular papilla?; colour 

 white, but seen by transmitted light, dark brown, almost 

 opaque, with indistinct and irregular areolations which become 

 very evident when the colour-matter is removed by a dilute alkali 

 (fig. 12) ; ventral border of the valves produced in the middle into 

 a broad flange bearing a pattern composed of a series of strongly 

 marked rectangular tongue-like areas. Length - 85 mm. Male 

 unknown in Britain. 



Anterior antenna? slender and bearing very long, slender 

 seta? ; posterior antenna? (fig. 8) nearly devoid of seta? except at 

 the apex which bears three or four setiform claws ; first foot 

 having an unusually long terminal claw (fig. 9) ; second pair of 

 feet not forcipate, bearing three unequal terminal seta? (fig. 10) ; 

 post-abdominal rami (fig. 11) rather short and stout, with two 

 apical claws and a very small marginal seta situated on the distal 

 third of the limb. 



I am greatly indebted to Mr. R. Gurney for several gatherings 

 of Ostracoda from the Norfolk Fen -district, and in one of these 

 — the exact locality not noted — occurred a few examples of this 

 interesting species. 



Candona pubescens Koch. 



1837. Cypris pubescens Koch, Deutschlands Crustaceen, H. 11 



1838. (Jypris compressa idem, ibidem, H. 21, p. 17. 



1866. Candona compressa Brady, (1) p. 382, pi. xxvi. figs. 22-27. 

 1889. Candona ptibescens B. & N., (2) Part i. p. 101, pi. xii. 

 figs. 32-37; Part ii. p. 729, pi. lxiii. fig. 24: pi. lxiv. 

 figs. 20, 21 ; pi. Ixviii. figs. 7-9. 

 1891. Candona pubescens Vavra, (6) p. 43, fig. 11. 

 1900. „ „ G. W. Midler, (5) p. 26, pi. iv. figs. 3, 



4, 6, 16, 18, 19, 21,22. 

 A widely distributed species both in England and Scotland. 

 I am unable to recognize any specific difference between the two 

 forms C. pubescens Koch and C. compressa Koch. Yavra (loc. cit.) 

 has adopted this view, but by some authors the two species are 

 held to be distinct. 



The species is too well known to need further description. 



