16 KECORDS OF THE AUSTRALIAN MUSEUM. 



living forms it is practically reduced to nothing in Melina cura- 

 ingi, and other species of that genus ; absent in Pinna ; present 

 in both valves of Fteria prasei, Dunker ; visible in the right 

 valve of Pteria morio, Leach, and in both valves of Pteria cum- 

 ingi, Reeve. The fossa is not developed in Meleagrina mar- 

 garitifera, Linn.; but to some extent in the right valve, at least, 

 of M. citrina, Dunker. It is not to be found either in Malleus 

 or Ostrea. 



Closely allied to C. pectiniformis externally, is Lima substriata 

 (Munster) Goldfuss,' and not unlike our shell either. Lima tuber- 

 culata, Terquem," also possesses a general resemblance. 



Log. — Hills on the Cue Railway, thirteen and a quarter miles 

 north-east of Geraldton, Western Australia (presented by Mr. A. 

 Gibb-Maitland, Government Geologist of Western Australia); and 

 Geraldton District^ (presented by Miss Fitzgerald). 



5 Goldfuss — Petrefacta Germaniae, ii., 1836, pi. ciii, figs. 1, la and b. 



6 Dumortier — Etudes Pal. Depots .Jurassiques Bassin Rbone, i., 1864, 

 p. 56, pi. viii., figs. 3-5. 



7 Precise locality unknown. 



