168 Stewart— Mollusca of the Boulder Clay. 



comparison is possible: The four species added by me to the list published by 

 Bryce were obtained by close scrutiny of material collected by the late Mr 

 Hy ndman, the deposit being now inaccessible. 



WOODBURN, COUNTY ANTRIM. 



A deep bed of Boulder Clay is, for a considerable distance, cut through by 

 the Woodburn River, at rather more than a mile north-west of Carrickfergus. 

 This bed has yielded ten species of shells, and is notable for the occurrence of 

 three species of Leda, many of the specimens being in a perfect state. Trophon 

 lalericeus was also found here. 



FALLS PARK, BELFAST.. 



This locality is close to the town, opening to the Falls Road. The clay here 

 would be quite as rich in fossils as that of the Waterworks if sufficient material 

 were available. The beds are exposed only in the low banks of the small stream 

 that flows through the park, and, consequently, the search for fossils can only 

 be conducted by examining the surfaces of the sections. Seven species have 

 been collected here, all of northern types, including Astarte triangularis and 

 Trophon Gunneri, which are not recorded from any of the other localities. 

 Fragments of Balani are frequent here, as in all the fossil localities I have 

 examined, except Bovevagh. 



BANGOR, COUNTY DOWN. 



The Boulder Clay is seen in a high bank on the shore at Ballyholme, half a 

 mile north-east of Bangor. Six species of the usual northern forms have been 

 found in this spot. The rocks, where denuded of clay, are seen to be finely 

 glaciated. 



KNOCK, COUNTY DOWN. 



A small stream (Connswater) has exposed the Boulder Clay in the high 

 banks of Knock Glen, near the Knock railway station. Shells are not plentiful 

 at this plaee ; four species only have been found. Leda minuta and Leda 

 pygmcea are not rare ; they usually occur quite perfect. 



