Mr Etheridge on Fossils from Bowen River Coalfield. 325 



mania. Coll. Brit. Museum. Natural size. Figs. 39 and 40, ventral and 

 dorsal valve of the most complete and concave species we have. Figs. 41 and 

 42, interior of the dorsal valve. (Compare the form of the reniform impres- 

 sions with those of figs. 21 and 23.) Fig. 43, side view of ventral valve of an- 

 other specimen — a, a, hinge and area ; h, spines on ventral valve ; c, close 

 concentric laminte of dorsal valve ; d, cardinal boss ; c, septum ; /, exterior 

 boundary of reniform impressions ; g^ remains of alar ridge ; h, bevelled front 

 edge. 



Figs. 44-49. Productm (?), sp. ind. (Compare P. hrachythcerus (Morris), in 

 Strzelecki's " Phys. Descrip. New South Wales," etc., 1845, t. 14, f. 4 « and h. ) 

 New South Wales. Strzelecki Collection, British Museum — a, long septum, 

 reaching to front margin ; h, reniform impressions ; c, beak of ventral valve ; 

 d, dendritic adductor impressions ; c, beak removed, showing cardinal process ; 

 /, alar ridges ; g, scarp-like casts of the depression for the cardinal muscles ; 

 h, septum dividing the adductors of the ventral valve; i, cardinal process; k, 

 channels of spine bases. 



Figs. 50 and 51. Produdus horridus (Sowerby). Permian, Humbleton 

 Hill. Coll. British Museum. Natural size. The same lettering applies 

 here. 



Fig. 52. Aviculopeden subquinquelineatus (M'Coy). Natural size. Bowen 

 River, Marine Series. 



Fig. 53. Pachydomus ? carinatus (Morris). Natural size. Coral Creek, 

 Marine Series. 



Fig. 54. SanguinoUtes, sp. ind. (Compare S. clava (M'Coy), Brit. Pal. 

 Foss., t. 3F, f. 12.) Natural size. Coral Creek, Marine Series. 



Figs. 55-57. Crioceras Jackii, sp. nov. Natural size. Tate River. Cre- 

 taceous. 



Fig. 58. Crioceras Jackii, var. Natural size. Tate River. Cretaceous — 

 a, large ribs with tubercles ; h, small plain ribs ; c, tubercles ; £?, continuation 

 of body whorl remaining attached to other portions of shell. 



PLANTS. 



Mr Carmthers has very kindly undertaken to afford me a 

 few notes on the fossil plants collected by Mr Jack in the 

 Bowen Elver coalfield. In connection with this branch of 

 the subject the following remarks may not be found out of 

 place. As before stated, in the introductory remarks, Mr 

 Jack's memoranda accompanying the collection inform us 

 that the latter is from two series of beds, a Marine (fossils 

 numbered 1 to 166 inclusive) and a Fresh-Water Series (fossils 

 numbered 167-221 inclusive). 



From the first, or Marine Series, the remains of plants are 

 only met with amongst the fossils collected from the concre- 

 tionarv ironstone of Coral Creek, below the Sonoma road- 



