CANDONA. 135 



4. Candona compressa {Koch). Plate II, figs. 10, 11. 



Cypbis compkessa, Koch. Deutschland's Crastaceen, h. 21, pi. xvii {fide 



Lilljeborg). 

 1853. Candona — Lilljeborg. De Crustaceis ex ord. trib., p. 129, tab. xxvi, 



figs. 1—3. 

 1868. — — Brady. Monog. Eecent Brit. Ostrac, p. 382, pi. xxvi, figs. 



22—27. 

 1856. Cypris setigeka, Jones. Tertiary Entomostraca, p. 12, pi. i, figs. 6a — 6rf. 



Carapace, as seen from the side, compressed, subreniform, higher behind than in 

 front, greatest height equal to more than half the length. Anterior extremity obliquely 

 rounded, sloping steeply above to join the short and straight superior margin ; posterior 

 broad and well rounded; inferior margin very shghtly sinuated, almost straight; seen 

 from above, compressed, ovate, tapering and pointed in front, rounded behind ; greatest 

 width in the middle, and equal to less than half the length. Surface smooth (in recent 

 specimens milk-white and thickly covered with short fine hairs), and mostly marked with 

 a reticulated pattern. 



Length, -^th of an inch. 



Distribution. Becent. — Great Britain, Sweden, Holland. 



Fossil. — England : Whittlesea (Berkshire and Cambridgeshire, Prof. T. Rupert Jones). 



5. Candona Candida {Milller). Plate II, figs. 29, 30. 



1785. Cypris Candida, Muller. Entomostraca, p. 62, tab. vi, figs. 7 — 9. 



1820. MoNOCULUs CANDiDUS, Jurine. Hist, des Monocles, p. 176, pi. xix, figs. 7, 8. 



1850. Candona lucens, Baird. Brit. Entom., p. 160, tab. xix, fig. 1. 



1853. — CANDIDA, Lilljeborg. De Crustaceis; Jones, Tertiary Entomo- 



straca, p. 19, pi. i, figs. 8a — Sf, 5a, Lb ; 

 Brady, Monog. Recent Brit. Ostr., p. 383, 

 pi. XXV, figs. 1 — 9, pi. xxxvi, fig. 13, and 

 pi. XXX vii, fig. 1. 



Carapace, as seen from the side, oblong, lower in front than behind, reniform in the 

 male, subtriangular in the female, greatest height equal to more than half the length. 

 Anterior extremity rounded and rather narrow ; posterior obliquely rounded, and produced 

 below into a more or less prominent angle ; superior margin highest behind the middle, 

 thence sloping with a flattened arcuate sweep to the front ; inferior slightly sinuated 

 in the young and in adult female specimens, but in old examples and in the adult male 

 deeply sinuated in front and prominently convex behind ; seen from above, oblong ovate, 

 pointed in front and rounded behind, widest in the middle, greatest width equal to half 



