PLATE XXX. 



Fig. ... 1. Radula [? Ctenoides] scabemiima, Sfol., p. 421 ; side- and front-views; the valves 

 are slightly shifted, and on the lunular region the striae and tubercles are some- 

 what worn oif; Olapaudy, Arrialoor group. 



Figs. 2 — 5. Radula [Acesta] obliqui-striata, Forhes, p. 421; specimens of different sizes; 

 in fig. 3 the spiny lamellae on the radiating ribs are much worn off; Comara- 

 polliam, Arrialoor group. 



Figs. 6 — 7. LiMEA Oldhamlana, Stol., p. 423, (see also pi. xxxvi, fig. 5) ; Stripermatur, Arria- 

 loor group. 



Fig. ... 8. Radula scABUictiLA, 5^0^., p. 419 ; ComarapoUiam, Arrialoor grovp. 



Fig. ... 9. Radula insignis, Stol., p. 418; the probable shape of the umbo is restored in 

 outline; Moraviatoor, Ootatoor group. 



Figs. 10 — 11. Radula interplicosa, Stol., p. 418; in fig. 11 the tubercles on the ribs are worn 

 off; Ninnyoor, Arrialoor group. 



Fig. ... 12. Radula [Ctenoides] tecta, Golclf., p. 420; side- and posterior-views; north of 

 Foodoo2wlUam, Arrialoor group. 



Fig. ... 13. Radula [Acesta] OBLiQuiSTRiATA, i^brie*, p. 421 ; the scales on the ribs are almost 

 entirely obsolete ; north of Poodoopolliam, Arrialoor group. 



Fig. ... 14. Radula [Ctenostreon] couplanata, iS/c/., p. 422 ; side- and front-views; Culla. 



paudy, Ootatoor group. 



