206 REMARKS ON FOSSILS OF PERMO-CARBONIFEROUS AGE, 



The portion of a shell figured by De Koninck under the above 

 name closely resembles the specimens from north-west Australia, 

 the form being very close indeed, and the appearance of the band 

 identical. 



Genus EUPHEMUS, McCoy. 



EuPHEMUS Orbignii, Povtlock, var. 



Bellerojyhon d'Orhignii, Portlock, Geol. Report, Londonderry, 



(tc, 1844, p. 401, t. 29, f. 12. 

 Euphemus d'Orhignii, de Koninck, Faune Calc. Carb. Belgique, 



1883, pt. 4, p. 156, t. 42, f. 10-12 ; t. 42^^ f. 5-7 ; t. 43, 



f. 9-12. 



Ql,s, — By far the commonest shell amongst the Ironstone 

 Ridge fossils is a Bellerophon of the group Eupherrius. In the 

 present altered state of the specimens I cannot distinguish it 

 from the above species. The shell is globular, with a reniform 

 aperture, devoid of a keel, covered with distinct and separate 

 spiral ridges, which are obliterated on the back of the youngest 

 portion of the body whorl, whilst the umbilicus is very small and 

 pit-like. 



Although to some extent resembling the allied species E. Urei, 

 Fleming, sp., the discernible characters are, on the whole, more 

 those of Portlock's shell. 



Associated with the individuals of this species are a few others 

 on which faint traces of transverse decussating striae are visible, 

 and one exhibits a tendency to a reflected callous inner lip. It 

 is possible that these may be distinct from those referred to 

 E. Orhignii. 



Mount Afarmion, with its Fossils. — The patch of which this 

 hill forms a portion is described by Mr. Hardman as formed of 

 " hard sandstone, ironstone, and grits,'' and is an elongated out- 

 crop of strata surrounded by Pindan beds, and the alluvial matter 

 of the above rivers. By the colouring of the map this is cer- 

 tainly a part of Hardman's Upper or Sandstone Series. The hill, 



