58 On Paluozoic Birahxd Entouiostraca. 



List of the Carboniferous Ostracoda of Russia. 



Bevrichirt pribbtrosn. D'Eichir. Sltiboda. 

 — '— colliculus, D'Eichw. Tschcrniscliiue. 



inttTiiu'dia, Joitvx cV //<»//. Tsrliorniscbine. 



Kirkbya uinbonata {D'Eichw.). Sloboda. 



striolata (7>'/iiW(»r. ). Sloboda. 



Priinitia Eicbwaldi, Joiua Sc Kirkbij. Phillineonowa. 

 Leporditia Okoni {Von Minister). Phillineonowa, Slobodn. 



, var. inoniata {M'Coi/). 'rsolu-rnischine. 



, var. oblifjiia, J. vS" A'. Phillineonowa. 



, var. niicrophthalnia, D'Euhic. Goroditz and Slobod.i. 



Cvthere (?) bilobata ( Von Miinster). Tschernischiue and Sloboda. 

 Bairdia excisa (!'), D'Eidnr. Ttjcheruischine and Slohoda. 



auipla, Reuss. Sloboda *. 



plebeia, Ecusx. var. rhonibica, /o/k'."!. Sloboda. 



, \m: nmnda, J. S- K. T.«;chemischine. 



seqnalis, UEirhtc. Sloboda. 



distracta, D'Eichw. ( = :- mucronata, Rciiss). Borowitschi and 



Goroditz, 



Qualeni, D'Eichw. Sterlitamak. 



Cytherella Murohisoniana, .7. S,- K. Near Bugulina. 



EXPLANATION OF PLATE VL 

 [All the figures, except fig. 12 6, are magnified 20 diameters.] 



Fig. 1. Leperditia Okeni (^'on Miin.ster) : right valve of small individual. 



Fi</. 2. Lcperditia Oheni, var. inornata (M'Coy) : left valve. 



Fig. 3. Leperditia Oheni, var. ohliqua, nov. : left valve. 



Fiff. 4. Bairdia (pqualis. D'Eichw. : o, right side; b, dorsal; c, ventral 

 edge ; d, end view. 



Fig. 5. Bairdia ampla, Keuss : a, right side ; b, ventral edge ; o, end 

 view. 



Fig. 6. Bairdia plebeia, Reuss, var. rhombica, Jones : left valve. 



Fig. 7. Bairdia plebeia, var. minida, no\. : left valve. 



I\gs. 8 a, b, c, 9 a, b, 10 a, b, c. Cythere (Patanion/pris ?) bilobata (Yon 

 Munster). Three individuals in variou^s aspects. 



Fig. 11. Bet/richia intermedia, Jones & Holl : left valve. 



Fig. 12. Primitia Eichicaldi, sp. nov. : a, left valve, with wrinkled orna- 

 ment ; b, ornament, from a reticulated portion, magnified 84 

 diameters. 



Fig. 13. Cytherella Murchisoniana, sp. nov. : a, left valve ; b, edge new. 



Fig. 14. Cytherella Murchisoniana (cast) : a, right valve ; b, edge view ; 

 c, end view. 



* Under the heading "Bairdia curia" in 'Lethfea Eossica,' loc. cit., 

 M. d'Eichwald gives Tschemischine, Goroditz, Borowitschi, and Sloboda 

 as localities for at least three varieties, and he quotes it also from the 

 'Old Red Sandstone with Fucoids." 



