224 Frederick CItapymtn : 



<y. ^^fr/«we//o«w.s, var. densilineata was found both in the 

 Glenbumie and Cemetery Hill Road sections, and it will prob- 

 ably prove to be a good zone fossil. 



Actiiiopteria hoycli, Conrad sp. 



Avicula. boydi, Conrad, 1842, Journ. Acad. Nat. Sci. Philad., 

 vol. VIII., p. 237, pi. XII., fifr. 4. 



This species is already known from the Hamilton Group of 

 N. America and the Upper Ludlow of Britain. It is widely 

 distributed in our Yeringian series, having been found at Croydon 

 and at various points in the neighbourhood of Lilydale, in addi- 

 tion to the present occurrence at Glenburnie Road, Cemetery Hill 

 Road and Barber's Creek. 



Modiomorpha sp. 

 Three examples of a modioliform shell occur on one slab from 

 the Cemetery Hill Road section. They are bivalves having a 

 strong umbonal ridge, ooncentric lamellae, and expanded posterior 

 cardinal area. A fairly close comparison may be made with M. 

 concentrica, Conrad sp.i from the Hamilton Group of N. 



America. 



Proetus rattei, Eth. fil. and Mitch. 



P. rattei, Eth. fil. and Mitch., 1892, Proc. Linn. Soc, N.S.W.. 

 vol. VI., p. 3 16, pi. XXV., figs, 2, 2a-d. 



Two examples of the pygidium of the above species are found 

 in the series of fossils from Glenburnie Road. They show the 

 characters of the described form in the relatively long axis with 

 eight rings and rapid contraction towards the' pygidial margin. 

 It is interesting to note the first occurrence of this trilobite in 

 Victoria, the species having been described from the Lower 

 Trilobite Bed of the Bowning Series, of Bowning Creek, Bowu- 

 ing, Co. Harden, New South Wales. The above authors ascribe 

 the horizon doubtfully to the Wenlock. 



Pliacops s})., ef. sweeti, Etli. fil. and Mitch. 



A few pygidia of a small variety of Pliarojis allied to the 



above speciesi occur in the Glenburnie Road material. They 



have a well-marked and narrow axis and a rounded pygidial 



border. These fossils may represent a neat variety of the 



1 See Hall and Clarke, Pal. N. York, vol. v., pt. 1 (ii.), 1885, p. 275, pi. xxxvi., figs. 1-18. 



2 Phacops fecundus, McCoy, non Barr:nido, Proc. Pal. N'ict., dec. iii., 1876, p. 15, pi. 

 xxii., figs. 8, 9, pi. xxiii., figs. 1-6. 



