475 



fin ; interorbital space flat and broad ; a few obscure bony 

 ridges on the hinder part of the cranium. Jaws of equal 

 length ; maxillary reaching to behind the posterior nostril, 

 its hinder margin obliquely truncate and exposed. Eye 

 rather small, a little shorter than the snout and much nar- 

 rower than the interorbital space. Nostrils separated by a 

 space slightly wider than their own diameter, with free 

 cutaneous margins. Preorbital bone denticulate posteriorly. 

 Preoperculum denticulate, the denticles largest on the rounded 

 angle. Operculum with two spines, the lower the larger and 

 not reaching the margin of the lobe. Suprascapular and 

 coracoid bones exposed and feebly serrated. 



Each jaw with a band of minute teeth, the outer ones a 

 little enlarged, subcardiform, and slightly depressible. Vomer 

 with three or four small teeth in the middle, the palate other- 

 wise toothless. Scales largest on the anterior portion of the 

 sides, smallest on the breast. 



Spinous dorsal arched, the fifth spine the longest, the 

 following decreasing evenly backward ; soft dorsal somewhat 

 rounded. Second anal spine a little longer than the third, 

 and almost as long as the anterior rays. Pectoral obtusely 

 pointed above, the fifth upper ray longest. Ventrals inserted 

 behind the vertical of the first dorsal spine, and reaching a 

 little more than half their distance from the vent. Caudal 

 emarginate. 



Described from a specimen 140 mm. long, which is com- 

 pletely bleached after long preservation in alcohol. It is 

 allied to T. hillii, from which it differs principally in its broad 

 form and in having only eight anal rays ; its scales also are 

 rather smaller than in that species. 



Loc. — Cooper Creek or "Barcoo," Central Australia. 



Old collection, S.A. Museum. 



(I) CRUSTACEA. 



By Charles Chilton, M.A., D.Sc, M.B., CM., LL.D., 

 F.L.S., C.M.Z.S., Professor of Biology, 



Canterbury College, New Zealand. 



In his expedition to the interior of Australia in 1916 

 Mr. Edgar R. Waite collected a few Crustacea, which he 

 has kindly handed over to me for examination. The col- 

 lection is small, both in species and individuals, containing 

 only two terrestrial Isopoda, two species of Phyllopocla, and 

 one Copjepod. 



