444 Canadian Record of Science. 



There is an obscure ocular tubercle situated at the 

 upper front angle of the valve ; and an obscure, short and 

 weak furrow behind it ; about the middle of the cardinal 

 line is a low, faintly marked tubercule. There is a trace 

 of a marginal furrow along the posterior margin. 



Sculpture. Corrosion of the surface has obscured the usual 

 markings, leaving a rough surface, which is crossed in 

 several directions by broken ridges, without regularity ; 

 except towards the lower margin of the valve, where 

 there are several sub-parallel to the margin. 



Size. This is the largest Ostracod obtained from the 

 Etcheminian Group — Length 6| mm, width 5 mm, depth 

 about 1^ mm. 



Horizon and locality. Assise E. 3. f. Upper Etcheminian, 

 at Gillis', Indian Brook, Escasonie N. S. Scarce. 



The flat form and wrinkled surface of this valve indi- 

 cates a thin chitinous test. It may have distant aliinities 

 with Isoxi/s, Walcott, but is entirely different in form. It 

 also approaches in outline Aristozoe rotunclata Walcott,* but 

 is of different relief. 



BRADORONA, n. sub-gen. 



The description of the genus Bradoria applies more par- 

 ticularly to the smaller elongate forms, described in the 

 Bulletin of the Natural History Society of New Bruns- 

 wick, j- But beside these the Etcheminian beds contain a 

 group of larger forms, with similar ocular tubercle and 

 muscle scar, but broader and more triangular in form ; 

 most of them belong to the Lower Etcheminian Fauna but 

 there are stragglers in the upper. With their more angu- 

 lated form they have the front marginal curve straighten- 

 ed. These we propose to distinguish as a subgenus under 

 the name Bradorona. 



Bradorona perspicator, n, sp. PI. I„ fig. 8a to d. 

 This is one of the largest Ostracods, found in the Cape 



* Fauna of the Olenellus zone p. 627 pi. i. xxx figf. 3. 



t Bull Nat. Hist. Soc. N. B. Vol. iv. p. 204 St John 1899. 



