68 



Rissoia (Sabanasa) Tastnanica, Ten.- Woods. 



Calliostoma Allporti, Ten.- Woods. 



Trochocochlea constricta, Latnarck. 

 *Bankivia fasciata, Menhe. Also to 244 ft. 



Adelactteon casta, A. Adams. 



Volvulella rostrata, A. Adams. 



Corbula tunicata, Hinds. 



Corbula scaphoides, Hinds. At 180-200 ft. 

 *Mactra rufescens, Lamarck. 



Mesodesma elongata, DesTiayes. 



Mesodesma erycinsea, Lamarck. 



Strigillasp., . Also 145-154 ft. 



Rupellaria mitis, Deshayes ? Also 145-154 ft. 



Chione undulosa, Lamarck ? 

 *Gen. et sp. Erycinidse (not determined). Also 220-244 ft. 



Carditella infans, E. A. Smith? 

 *Nuculana crassa, Hinds. Also to 244 ft. 



Liniopsis Forskali, A. Adams. 



Magasella Cumingi, Davidson. At 154-160 ft. 



PORT PIRIE BORE. 



Operations at this bore were suspended at the date of prepara- 

 tion of this communication, after having passed through to a 

 depth of 574 ft. of incoherent deposits, and a further depth of 

 61 ft. in siliceous clay-shales and limestones of Cambrian age. 

 At the date of the reading of this paper the boring had been re- 

 sumed, but with what object one is at a loss to understand, as 

 previously a finality had been secured both from geological and 

 economical standpoints. Samples of the beds passed through and 

 a statement of their respective thicknesses have been obligingly 

 placed in my hands by the Conservator of Water. From these 

 data the following descriptive tabular schedule of the boring has 

 been drawn up : — 



Surface-level 14 ft. above low water-mark. 

 Newer Pleistocene. 



Marine shells 90 — 110 



Light grey calcareous silt, slightly s^rgWlsiCQ- 



ous, with Plecotrema ciliat2im... ... 110 — 136 



Brown clay with included subangular silice- 

 ous and calcareous grit. Marine shells 136 — 150 



Mottled (red and gray) gritty clay. Salt 



water ^ ... 150 — 178 



Red-yellow sand or sandrock, consisting of 



coarse moderately abraded grains ... 178 — 180 



Light red and cream colored mottled clay 180 — 276 



