36 



-Triton textilis 



tortirostris 

 Fusus craspedotus 

 Dennantia Ino 

 Nassa Tatei 

 Voluta antiscalaris 

 McCoyii 

 strophodon 

 Weldii 

 polita 

 sarissa 

 Lyria harpularia 

 Maro-inella Woodsii 

 propinqua 

 inermis 

 Winteri 

 Wentworthi 

 Ancillaria pseudaustralis 

 Entalis Mantelli 

 Cylichna exigua 

 Terebratula vitreoides 

 Waldheimia Garibaldiana 

 Dimya dissimilis 

 Pecten Murray anus 



Yahlensis 

 Lima Jeftreysiana 

 Spondylus pseudoradula 

 Leda vao-ans 



Pleurotoma Clarse 

 Mangelia bidens 

 Clavatula fusilla 

 Daphnella gracillima 

 Conus Ralphii 



pullulescens 

 Cypraea contusa 



Murraviana 

 Trivia avellanoides 

 Cassis exigua 

 Semicassis transenna 

 Natica gibbosa 



polita 

 Solarium acutum 

 Cerithium apheles 

 Liotia Roblini 

 Minolia strigata 

 Entalis annulatum 

 Limopsis Belcheri 

 Pectunculus cainozoicus 



McCoyii 

 Cucullaea Corioensis 

 Trigonia semiundulata 



Crassatella Dennanti 

 Cardita gracilicostata 

 Corbula ephamilla 

 Placotrochus deltoideus 

 elongatus 



It is important to note the relative elevation of these outcroiDS,. 

 By aneroid observations, I make Clifton bank 385 feet, and 

 Forsyth's bank 420 feet, above sea level, giving a difference of 

 35 feet in the heights of the two places. 



From a comparison of the fauna in the two beds, and from 

 other evidence to be adduced directly, I conclude that the deposit 

 at Forsyth's belongs to a later epoch than that at Clifton. The 

 two zones, which are now generally recognised, in the Muddy- 

 Creek shell beds are, in fact, well typified in these localities, viz., 

 the upper or younger at the first, and the lower or older at the 

 second. 



It was on the Grange Burn that I first became convinced of 

 the distinction between the two sets of shell beds, but the evi- 

 dence at Muddy Creek is, in reality, far more conclusive, for 

 there we are enabled to see their actual junction. At the 

 Clifton section, only the lower beds are visible, but a few chains 

 higher up the stream, the upper beds crop out just under the- 

 basalt, on the face of a steep bank. The upper half of this banky 



