176 



As seen from the figure given, they differ conspicuously from those of the 

 other species in the shape of the terminal part. 



Distribution. British Isles, Holland, Bay of Biscay. 



Fossil. Scotland. 



80. Leptocyihere crispata (Brady). 



(PI. LXXX, fig. 3.) 

 Cythere crispata, Brady, Ann. Mag. Nat. Hist., ser. IV, Vol. II, p. 221, PI. XIV, figs. 1415. 



Syn: Cythere cicatricosa, G. O. Sars (not Reuss). 

 badia, Brady (not Norman). 



Specific Characters. Female. Shell, seen laterally, oval subreniform in 

 shape, higher in front than behind, greatest height exceeding somewhal half 

 the length, dorsal margin gibbously arched in the ocular region and sloping 

 gently behind, ventral margin slightly sinuated in the middle, anterior extremity 

 broadly rounded, posterior much narrower and obtusely truncated, with the 

 upper corner but little projecting; seen dorsally, narrow oblong in outline, 

 with the greatest width behind and rather less than Va of the length, side- 

 margins irregula'ly flexuous, both extremities obtuse at the tip; the anterior 

 narrower than the posterior. Valves of rather firm consistency, with the sur- 

 face very uneven, exhibiting irregular depressions or grooves defined by more 

 or less distinct elevated ridges. Anterior antennae with the terminal part som 

 what longer than the distal segment of the basal one; spine of the proximal 

 joint much reduced, last joint shorter than the middle one. Legs less rapidly 

 increasing in length posteriorly than in the other species. 



Colour of shell light chestnut brown. 



Length of adult female 0.40 mm. 



Remarks. This small Ostracod was described by the present author 

 the year 1865 under the name of Cythere cicatricosa. As however this nam 

 had been preoccupied by Reuss for a different species, the specific name w 

 replaced by Brady in the year 1868 with that of crispata. The said autho 

 had previously identified this form with Cythere badia of Norman, whic 

 however is specifically different, though nearly allied. Some of the species 

 Cythere described by G. W. Muller from the Gulf of Naples look very like th 

 present form, and it is not improbable that one or other of them might tur 

 out to be identical with the northern species. 



Occurrence. I have taken this form occasionally in the upper part o 

 Christiania Fjord, as also in some other places on our southern and western 



