BY W. X. BENSON. 379 



^^Phillipsastnea (jrandis, sp.nov. — A very large type of Phillip 

 sastrma, the centre of the coralHtes being 2 cm. apart" [2'5, 1*7, 

 and 1*6 cm. in three adjacent eorallites in the specimen illus- 

 trated in Plate xxx\-., figs. 4 and o.] ''The septa are variable in 

 length and number; there are 23-28 of the longer, and the shorter 

 reach to the limit of the central area. This species is quite distinct 

 from any of the Australian forms 1 have seen, and no closely allied 

 species from extra-Australian i-egions are known to me." [There 

 is a .species, P. gifias, occurring in the Lower and Upper ]\Iiddle 

 Devonian beds of North America, Onondaga and Hamilton Series, 

 in whicli the centres of adjacent eorallites are more tlian 2 cm. 

 apart (22); but further details concerning this form are not avail- 

 able liere. P. vernp/nilii, which was recognised by De Koninck(9) 

 in a specimen obtained l)y the Rev. AV. B. Clarke, from Cope's 

 Gully, near Hanging Rock, had from 28-32 septa, and the centres 

 of the adjacent eorallites are 10-12 mm. apart. It is extremely 

 pro])able tliat this form came from a flevelopmeut of the Loom- 

 herah limestone near the head of Cope's Creek, just outside the 

 limits of the area mai)ped in Plate xxxii.] 



''Favofiltes gotJilandica/' 



"Fuvosites^ sp. ind. (sj). nov. f). — Transverse sections of one 

 specimen oidy are available. Tliis form is distinct from any of the 

 types of the Au.stralian Devonian rocks, and is remarkal^le for the 

 very irregular form of the eorallites. (See Plate xxxv., fig. 7). 

 Additional material will probably prove it to be a new species." 



[In addition to the forms recognised by IVIr. Dun, mention may 

 be made of a very interesting slide, which, unfortunately, has been 

 mislaid, and cannot here be figured. It was cut from a form, 

 apparently F. gotldandica, but in whicli the wide spacing of the 

 tabulas was replaced for a distance of about fi mm., by closely 

 ])acked tabulae, as near together as in F. multitahulata. The 

 change occurred quite .sharply on one side, and more gradually on 

 the other, and at the same level in adjacent eorallites, as if brought 

 out by a rapid change and slower reversion in the local conditions.] 



^^Plasmopora sp. — A single specimen of a small Plasmopora is 

 contained in the collection. It is quite indeterminable specif!- 



