New and Rare Fossils. 311 



Fain. LEPTONIDAE. 

 (iciius KOCHEFOKTIA. Velain. 



KoClfKFORTIA DON'ACIFDUMIS. An<,'a.S .sp. 



Mi/sella (/onacifor/nis, Angas. 1878, P)oc. Zool. Lond., p. 



86:3. pi. liv. fig. 1:3. 

 Roehefortm donaciformis, Angas. sp., Dall. 1900. Trans. 

 Wagner Inst., vol. iii. pt. 5. p. 1157. Hedley. 1902, 

 Proc. Linn. Soc. N.8. Wales, vol. xxviii. pt. i. p. 7, 

 pi. i. figs. 10-14. 

 This species is recorded as living on the coasts of Victoria, 

 Tasmania and N.S. Wales. Our specimens are identical in all 

 •essential points of shape, ornament and hingement. with the recent 

 specimens. 



Distrihution. — Bore 11. 542-544 feet; 544-546 feet. 



Genus ERYCINA, Lamarck. 

 Erycina micans, Tate sp. 



Kellia mica lis, Tate. 1887. Trans. Roy. Soc. Vict., vol. ix. 

 p. 148. pi. six. fig. 13. 



This common Kalimnan fossil is generically related to the living 

 Erycinas of the Australian coast. It closely approaches Kellia 

 ■angasmna, Tate,i a form which may eventually find its place in 

 the above genus, from which it differs in the stronger cardinal 

 dentition and usually present concentric ornament. 



In Kellia tlie hinge is lighter and the shell non-punctate. The 

 shell in Lepton is typically more depressed and the hingement is 

 slighter. 



The living Erycina parra, Deshayes,- has a similar shell, but 

 with a more convex ventral border; the valve-surface, moreover, 

 is conspicuously pitted instead of microscopically so, as in E. 

 micamt. The dentition is identical with that of E. inicans. 



The related E. porva has been fotind fossil in the Pliocene of 

 Wanganui. X. Zealand, by R. Murdoch, 3 and as a living species 

 is found in New Zealand, Victoiia and N.S. Wales. 



1. Ti-.aiis. Roy. Soc. S. Au!^r., vol. ix. (18S6), 1887, p. t>8, p). v., fijf. 7. 



1. Kellia parm, Deshayes, Proc. Zool. Soc. I.oiid., 1855, p. 182. Erycina acupuncta, Hedley, 

 Mem. Austr. Mus., No. iv., pt. 5, 1902, p. 321, woodcut fi^'. 60. h'ryciiia parva, Desh. sp., Hedley 

 Trans. N. Z. Inst., vol. xxxviii., 1905, p. 73. 



:i. See Hedley, loc. supra cit., p. 74. 



