206 Mr. W. E. ('ollinge on a neic Species 



Pi/cnolepas scalaris, Withers. 

 Cenomanian. Clialk Marl: near Cambridge. 



Fi<f. 7. Rostrum. <t, outer view; (^, inner view. 



Fu/. 8. Rostrum. A sma]l<!r example in which the longitudinal ridges 



are not so pronounced. 

 Fiff. 9. Upper latus. a, outer view ; I, inner view. 

 Fi(/. 10. Scutum, a, outer view ; b, inner view. 

 Figures X 8 diam. 



Cnlcmtica {ScilhrJepas) valida, Steenstrup, sp. 

 Upper Senouian : Ciply, Belgium. 



i^/9. 11. Rostrum. Outer view, x 2 diam, Brit. Mus. (Nat. Ilist.), 

 38460. 



Calantica {Scill<elepas) dorsata, Steenstrup, sp. 

 Danian, Bryozoa Limestone : Faxe, Denmark. 



Fifj. 12. Carina. (With apex broken.) "^ 



Fig. 13. Tergum. Right valve. >■ Outer views. X lo diam. 



FItj. 14. Scutum. Large right valve, j 



Fit/. 15. Scutum. Young left valve. "^ 



Fir/. 16. Carinal latus. 



Fin. 17. Rostral latus. Left valve. . . 



r- 1 o T> i [ f> outer view ; b. inner view. 



Fi'/. 18. Rostrum. )> ' , ,. 



J'/V/. 19. Rostral latus. Right valve. x 4: aiam. 



Fi(/. 20. Median latus. | 



Fif/. 21. Subcariua. j 



Fiffs. 22, 23. Peduncular plates, a, outer view ; b, inner view. X 8 diam. 



XXVI. — Descripfion of a nein Species of Terrestrial laopoda 

 from India. By WALTER E. COLLINGE, M.Sc, F.L.S., 



F.E.S. 



[Plate IX.] 



I AM indebted to tlie kindness of Dr. A. D. Imms, of tlie 

 Univer.sity of Manchester, for a tube of terrestrial Isopoda 

 containino; three specimens, two adult and one young', 

 referable to the genus PorceU'w, Latreille, collected by him 

 at Allahabad. 



During the past few years I have examined a considerable 

 number of terrestrial Isopoda from this region^ including 

 many species of Porcellio ; I cannot, liowever, find that the 

 ])resent Sj)ecies agrees with any of these or with any that 

 have been previously described. 



