308 Chapman and Gabriel : 



evev, been identified bv us in the Nat. Miis. eolleetion from 

 Beaumaris. 



In the Mallee borings the species is fairly abundant at the 

 Kalimnan horizon, associated with such typical fossils as Limopsin 

 henumarieiii^ist, Chapm. and BafhyactiK beauman'ensis, Dennant. 



A point Avorthy of special remark is the absence from the boring 

 material in the Mallee, of the allied form, Crassatellites catnurus, 

 Pritchard ^ ; a species which was described from the Western Dis- 

 trict of Victoria (Grange Burn and McDonald's, near Hamilton), 

 and. so far as we know, has not occurred elsewhere. This alliance 

 of the fauna with the Jemmy's Point facies of the Kalimnan, rather 

 than with that of the shallow-water facies of the Hamilton District 

 (Upper beds), is further borne out by the occurrence in the Mallee 

 of TurritelJa pagodula, a common Jemmy's Point fossil. 



Even in fragments it is tolerably easy to distinguish G. l-ingi- 

 coloid.es from 6'. camiirus by the relatively greater depth in the 

 former of the posterior adductor impression, and, what is even 

 more striking, the large, deep and broad lunule and its trans- 

 versely striated character as compared with C . camurus. 



Distribution.— Bore 1, 208-210 feet. Bore 2, 198-200 feet. Bore 

 3, 226 feet. Bore 4, 163-170 feet. Bore 5, 155-159 feetj 175-189 

 feet. Bore 6, 154-158 feet. Bore 8, 199-204 feet; 204-210 feet. 

 Bore 9, 263-273 feet; 315-325 feet. Bore 10, 254-296 feet; 3lO-320 

 feet. 



Genus CUNA. Hedley. 

 CuNA COXCENTRICA, H^edley. 



Cii/ia vonceiifricd, Hedley, 1902. Mem. Austr. Mus.. Mem. 

 iv. pt. 5, p. 315. woodcut, tig. 55. 



The above species, first described by Mr. Hedley from shells 

 found in dredgings off the coast of New South Wales, shows certain 

 variations within limits; but the chief characters are so distinct 

 that there is *no difficulty in matching it with our fossils from 

 the Mallee bores at the Kalimnan horizon (L. Pliocene). 



The living specimens have been recorded from Port Kembla, 

 63-75 fathoms, by (\ Hedley; and from Balmoral Beach, shore-line, 

 by one of us (C.J.(t.). Both localities are in N.S. Wales. 



Cuna edenfata, Verco,- living in the Gulf of St. Vincent, S 

 Australia, resembles the above species in both fossil and recent 



1. Loc. supra fit., 1902, p. 96, pi. .xiv., fljfs. .'. ',». 



2. Trans. Ro.v. Soc. S. Austr., vol. .\xxii., 1908, p. a.iT, pi. 



