Gkabau — Faunas of the Hamilton Group. 305 



Lamellibranchiata : 



34 Aviculopecten princeps. 1 

 47 Modiomorpha subalata. r 



Brachiopoda ; 



100 Chonetes lepida. c 

 105 Spirifer mucronatus. c 



m. A bed of limestone, one foot. 



This bed is about thirty-two feet below the Encrinal limestone, and 

 wherever exposed forms a prominent band in the cliff. Its chief fossil is 

 Spirifer mucronatus. In general the fossils are of the same species as those 

 in the shales below. Fish remains have been found in it. . 



Above this limestone occur : 



n. Seven feet of fissile shale with occasional bands of limestone. 

 Fossils are not very abundant, the following having been found ; 



Crustacea ; 



1 Phacops rami, r 



2 Cryphseus Boothi. II 



6 Primitiopsis punctulifera. r 



Brachiopoda : 



99 Chonetes scitula. re 

 100 C. lepida. rc 

 105 Spirifer mucronatus. rc 

 131 Liorhynchus multicostus. r 



o. The Modiomorpha subalata bed. 



This is a thin but continuous limestone bed, found in all the exposures, 

 and contains an abundance of Modiomorpha subalata. 



The complete list of fossils found is as follows ; 



Crustacea : 



1 Phacops rana. rc 



2 Cryphaeus Boothi. r 



6 Primitiopsis punctulifera. r 



Caphalopoda : 



12 Orthoceras exile. (J) R 

 20 



