ZONE OF AEGOCERAS JAMESONI. 



77 



Brachiopoda. 



Waldheimia indentata, Sow. 



— numismalis, Lamh. 



— Waterhousei, David. 



— cornuta. Sow. 

 Terebratula punctata, Sow. 



— Edwardsi, David. 



— subovoides, Rom. 



Spiriferina rostrata, Schloth. 

 Rhynchonella furcillata, von Buck. 



— rimosa, von Buch. 



— variabilis, Schloth. 

 Thecidea Boucbardi, David. 

 Leptsena rostrata, David. 



— Boucbardi, David. 



The Hehridean Jura. — More than twenty years ago my friend Professor A. Geikie,^ 

 E.R.S., made a collection of Lias fossils from the islands of Skye, Scalpa, Pabba, 

 Raasay, &c., which he sent to me to examine and determine. Most of the specimens 

 were collected from the dark brown micaceous shales of Pabba, beyond Corry, and 

 around the syenite of Beinn Bhindh, as far as the entrance to Scalpa Sound. These 

 specimens were carefully studied and compared with the same species obtained out of the 

 Middle Lias of Yorkshire, Dorsetshire, and Gloucestershire ; and this comparative study 

 led me to determine the series to belong to the zone Aegoceras Jamesoni. This 

 collection formed the subject of the notes appended to Professor Geikie^s paper communi- 

 cated to the Geological Society,^ and of which the following is a resume revised : 



Lias Fossils from Pabba, Scaljxi, and Skye, Hebrides. 



Cephalopoda. 



Aegoceras armatum. Sow. 



— Jamesoni, Sow. 



— Milleri, Wright, n. sp. 



— polymorpbuni, Quenst. 

 - — brevispina, Sow. 



— Davcei, Sow. 



Arietites tardecrescens, von Haiaer. 

 Belemnites elongatus, Sow. 



— paxillosus, Schloth. 



— elegans. Simp. 



— breviformis, Voltz. 



— clavfttus, Blainv. 



Gasteropoda. 



Cbemnitzia Blainvillei, Miinst. 

 Cerithium Slatteri, Tate. 



Tectaria imbricata. Sow. 

 Trochus limbatus, Schloth. 



' Geikie, ' Quart. Journ. Geol. Soc.,' vol. xiv, p. 5, 1858. 



2 "Wrigbt, " Notes on the Fossils collected by Mr. Geikie from the Lias of the Isles of Pabba, Scalpa, 

 and Skye," ' Quart. Journ.,' vol. xiv, p. 24, 1858. 



