Fossil Fish Reviains. 65 



The Tasnianian specimen, collected from Table Cape, was pre- 

 sented to the Tasmaniam Museum, Hobart, by Chas. Mackenzie, 

 Esq. We owe the opportunity of dealing: with this specimen to 

 the courtesy of Prof. W. B. Spencer, C.M.G., who received it 

 from Mr. Morton, the curator, after wliom we have much plea- 

 sure in nauiin«i' it.^ 



Order .\CT1N0PTERYGII. 



Family Labridae. 



Genus Labrodon, Gervais. 



Labpodon confertidens, sp. nov. (Plate V., Fig. 7.) 



Description. — Lower phaiyngeal dentition subtriangular, with 

 a very broad base, and apparently produced in front to a broadly 

 rounded j)oint, but otu* s.pecimen is unfortunately imperfect in 

 this res)tect. Surface strongly convex in the median area and 

 tumid towards the front. Teeth very demsely crowded, normally 

 circular in section, excepting where so closely packed as to be- 

 come compressed into polygonal form, both laterally, aaid from 

 back to front along the lines of gi-eatest convexity. Posteriorly 

 the teeth become distinctly triangular. The largest teeth are 

 situated in the median area, and form aibout 4 rows ; the}^ 

 measure up to 3 mm. in diameter. The smallest teeth are 

 situated anteriorly, and principally along the lateral extremi- 

 ties ; they average about .75 mm. in diaimeter. By the fractured 

 anterior of this pharyngeal, it may be noted that there are five 

 successional series of teeth in addition to the functional layer. 

 The unworn teeth are seen to have perfectly spherical and 

 highly enamelled crowns. 



Dimensions. — Width of completed specimen, 54 mm. ; width 

 at the base of beak-like projection, about lU mm. ; amtero- 

 posterior diameter, probably about 31 mm. 



Locality and Horizon. — Grange Burn near Hamilton, Western 

 Victoria. Base of the Kaiimnan. National Museum Collection 

 (presented by A. A. Kelley, Esq.). 



1 Since this was written we have heard with the deepest regret of the death of the 

 distinguished curator of the Tasmanian Museum. 



