1872. J ETHEEIBGE QUEENSLAND FOSSILS. 347 



not three, species of Belemnites, all of them much broken. The 

 phragmocones in some cases are well preserved, and also the 

 alveolar cavities, with portions of the guard. These fragments 

 enable me to place them in the Middle or Upper Oolitic series. I 

 can hardly detect any dijQference between the Queensland specimen 

 and our B. ahbreviatus from the Oxford Clay and Coral Eag, &c. 

 There is another specimen with a more slender phragmocone ; but 

 the nature and size of the guard cannot be ascertained. We also 

 possess numerous broken fragments and longitudinal halves of 

 Belemnites which cannot be really determined. 



Pleurotomaeia Cliftoni, Etheridge. PI. XXV. fig. 4. 



Shell trochiform, spire elevated, apex acute, whorls 4—5, rapidly 

 increasing. Body-whorl large. Aperture large, and nearly round, 

 base convex. Columella thick, umbilicus apparently wanting or 

 very small. 



Ohs. The body-whorl is more than double the dimensions of the 

 preceding or fourth whorl, and proportionally much more globose, 

 and crossed diagonally by dehcate lines of growth at an angle of 

 45°. The rather broad sinus occupies the upper half of the body- 

 whorl. I find great difiiculty in referring this shell specifically to 

 any known British form. It, however, resembles Turbo (Pleuroto- 

 maria) Dunkeri, Goldf. from the Middle Lias. 



We have only two specimens, which are associated with Myacites, 

 Homomya, and Pholadomya from the Oolitic deposits of Gordon 

 Downs. 



I name this specimen after Mr. Clifton, who has thrown much 

 light upon the Mesozoic fossils of Australia. 



Loc. Gordon Downs. Form. Oolite. 



HOMOMTA, Ag. PI. XXV. fig. 5. 



We appear to possess two specimens of this subgenus of Phola- 

 domya. The absence of radiating costse, and the somewhat wrinkled 

 surface of the shell, as well as the position of the umbo and the gently 

 curved hinge-line, favour the view tha,t the two casts belong to the 

 genus Homomya ; neither to Myacites nor to Pholadomya can they be 

 referred. I therefore place them with the above genus, and wait 

 the opportunity of examining better specimens. 



These and the following specimens from Gordon Downs all occur 

 in a micaceous, sandy or arenaceo-calcareous Limestone. The matrix 

 resembles the Yorkshire deposits, and, like many of the organic re- 

 mains in that area, they possess no outer shell whatever ; fragments 

 of wood occur also. 



Loc. Gordon Downs. Form. Lower Oolite. 



Pholadomya. PI. XXV. fig. 6. 



Sufficient indications of the ribs remain on this single valve to 

 determine this cast to belong to the genus Pholad.omya. The 



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