374 



MR. G. S. BRADY'S MONOGRAPH OF 



19. Cypris l^vis, Miiller. (Plate XXIV. figs. 21-26, and Plate XXXVI. fig. 5.) 

 Cypris Icevis, Miiller, Entomostraca, p. 52, tab. iii. figs. 7-9. 



Cypria ovum, Zenker, Anatom.-syst. Studien, p. 79, taf. iii. b. 



Cypris ovum, Jones, Tertiary Entomostraca, p. 14, pi. i. figs. 4a, 4b ; LUljeborg, De Crust, ex ord. tribus, 



p. 113, tab. X. fig. 13-15. 

 ?pantherina, Fisclier, Ueber das Genus Cypris, p. 163, tab. xi. figs. 6-8. 



Carapace ovate, subglobose ; greatest height equal to nearly three-fourths of the length. 

 Dorsal margin very strongly arched, or even angular, highest in the middle; ventral 

 margin straight or slightly convex. Extremities rounded and nearly equal. The dorsal 

 aspect of the carapace is very broad, subglobose, pointed in front and very broadly 

 rounded behind, broadest near the middle : length about one-third greater than the 

 breadth. End view subcircular. Lucid spots four, quadrangular, crowded : three set 

 transversely in front, and one behind. The shell is smooth and shining, distantly punc- 

 tate ; colour a transparent yellowish or olive-brown, clouded with patches of darker hue, 

 which often form faint strise (fig. 21) arranged as in C. vidua. These striae, however, are 

 mostly absent or reduced to one or two faint dorsal patches. The filaments of the upper 

 antennae are eight or nine in number. The lower antenna3 have three excessively long 

 setae (Plate XXXVI. fig. 5), measuring more than twice the length of the apical portion 

 of the antennae, reckoning from the origin of the setae to the extremity of the ungues. 

 The postabdominal rami are rather stout, their claws sharply curved at the apices. The 

 setse of the second feet as in C. compressa. 



Length in., height in. . ^- ^ ^ 3 o4 ^i'--. 



20. Cypris cinerea, n. sp. (Plate XXIV. figs. 89-42, and Plate XXXVI. fig. 7.) 



Carapace oval, tumid, higher in front than behind ; greatest height equal to nearly 

 two-thirds of the length. Anterior margin broad and well rounded, posterior narrowed 

 and rather obliquely rounded. Ventral margin straight or very slightly incurved, dorsal 

 forming a flattened arch and sloping more steeply behind than in front. Seen from 

 above, the outline is rhomboidal or lozenge-shaped, the greatest breadth in the middle, and 

 equal to more than half the length ; from the middle the sides taper evenly toward the 

 extremities, the anterior of which is acutely, the posterior obtusely pointed. End view 

 very broadly oval, pointed above and below. The right valve considerably overlaps the 

 left. Surface of the shell very finely and closely punctate, slightly pubescent ; colour 

 ash-grey. The second antenna has three setae very long, the rest short ; its claws, as 

 also those of the first foot, are long, slender, and destitute of serratures. The terminal 

 setae of the second foot (Plate XXXVI. fig. 7) are very stout from the base to the middle, 

 then suddenly constricted and tapering to the points. Postabdominal rami very stout ; 

 their claws short and stout ; the lateral seta and that on the inner border of the ramus 

 very short and slender. 



Length in., height -^5- in. ^ '* 



Cypris cinerea has hitherto occurred to me only in one locality, a pool not far from the 

 summit of Mickle EeU in Yorkshire, at an elevation of about 2000 feet. In the same 

 gathering were G. compressa, striolata, and other species. It is very distinct from any 



