68 



CARBONIFEROUS ENTOMOSTRACA. 



11. Oblong; sulcate 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, var. 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 : 



Cytherella valida, nov., PI. VI, f. 2. Oblong-ovate 



„ . . ( Pl.VI,f. 3,4,5,7;") _ . .. 



— Benniei,nov. ( pi vn f 12 j 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 



— nucif'ormis, Jones (Permian), PI. VII, f. 14. 



Subovate 



Surface 



smooth ; 

 , Group I, 



> profile more > 



or less 



cuneiform 



