DESCRIPTIONS UF NEW SOUTH WALES FOSSILS — ETHEHIhflE. 223 



Genus Mudioiiiorplia, ,/. Htdl (oul Whitfield, 1869. 



(Prelim. Notice Laiuellibraiic Shells, 1869, p. 72). 



Ohs. — This is chiefly a Devouiaii genus, but occurs to a 

 slight extent in the American Carboniferous. Mr. F. Chapman 

 has recognised it amongst Silurian fossils in Victoria, !•' and if 

 our respective determinations prove correct, the range of the 

 genus in time is much extended. 



Modiomorpha mytiliformis, Eth. jil. 



(Plate x1., fig 3). 



M. nu/tilifonnls, Eth. fil., Geol. Pal. Q'land, 1892, p. 273,1* pi. 

 U, fig. 5, pi. 38, figs. 12 and 13 (non pi. -11, fig 4). 



Obs. — 1 believe this to be the M. mytiliforvds of the Middle 

 Bowen Series of Queensland, and if so, strengthens the 

 separation already made from both the smaller figures of 

 McCoy's Modiula crassissima and M. (Cypricardia) inibricatu, 

 Dana. 



All I can differentiate between the specimen and my quoted 

 figures is that the anterior margin in the former is even 

 straighter than in the latter. 



The concentrically ribbed anterior adductor scar is visible. 



Genus Glyptodesma, /. Hall, 1883. 



(Pal. New York, v., pt. i.. Plates and Explanations, 1883). 



Glyptodesma (?) bundanoonensis, sp. noo. 



(Plate xl., figs. 4 and 5). 



S})- Chars. — Shell (left valve cast) large, sub-quadrangular, 

 slightly oblique ; cardinal margin straight, the ventral 



13 Chapman— Proc. E. Soc. Vict., xxi. (N.S.), pt. i., 1908, p. 224. 



1^ lu deserildng this species on page 273, I committed an eiTor in the 

 twenty-fourth line by using the word " latter," which should have read 

 "former." The corrected sentence will, therefore, be: — "This shell is 

 very like the smaller figure of McCoy's Modiola ciussissima, Imt not the 

 larger one, and may even be the former." 



