68 



CARBONIFEROUS ENTOMOSTRACA. 



11. Oblong; silicate across. Cytherella subcylindrica, Sandberger, 1866 ; 



Giimbel, 1869 ..... Trias. 



12. Oblong (narrow) ; margined. Cytherella Raibliana, Giimbel, 1869 Trias. 



13. Oblong (narrow); with tubular spines. Cytherella ? tuberculifera, 



vel tubulifera, Giimbel, 1869 .... Trias. 



II. Surface uneven. B. Granulose. 



1. Oblong (broad). Cytherella Williamsoniana, v?iX. granulosa, Jones, 



1848 . . ' . . . . Cretaceous. 



II. Surface uneven. C. Punctate, 



1. Suboblong. Cytherella Jonesiana, Bosquet. 1852 ; Egger, 1858 . Tertiary. 



2. Suboblong. Cytherella nodosa, G. S. Brady, 1878 . . Tertiary. 



3. Suboblong. Cytherella cuneolus, G. S. Brady, 1870 . . Recent. 



4. Suboblong; with pit. Cytherella rugosa, G. S. Brady, 1866 . Recent. 



5. Suboblong. Cytherella latimarginata, G. S. Brady, 1880 . Recent. 



6. Oblong. Cytherella circumscripta, Blake, 1876 . . Lias. 



7. Oblong. Cytherella irregularis, G. S. Brady, 1880 . . Recent. 



8. Oblong (narrow). Cytherella ? paupercula, Blake, 1876 . Lias. 



The species now about to be described can be arranged according to the grouping 

 here adopted, as follows : 



1. Cytherella vaUda, nov., PI. VI, f. 2. Oblong-ovate 



^ „ .. C Pl.VI,f. 3,4,5,7;-) , 



2. - Benmei,nov.[p^_ 



3. 



4. 

 5. 

 6. 

 7. 



Pl.Vn,f.l2 ) suboblong 

 recta, nov., PI. VI, f. 6, 11. Oblong 

 concinna, nov., PI. VI, f. 9, 12. Long-oval 

 hibernica, nov., PI, VI, f. 13. Ovate-oblong 

 brevis, Jones, PI. VI, f, 8. Broad-ovate 

 obliquata, G. S. B., PI. VII, f. 5. Oblong 

 nuciformis, Jones (Permian), PI. VII, f. 14. 

 Subovate 



1 



Surface 

 smooth ; 

 > profile more 

 or less 

 cuneiform 



Group I, 

 A, § 1. 



