44 Records of the S.A. Museum 



Fins. ( )ri,i;in of first dorsal aliout midway between the snout and tlie 

 hypural, and behind the insertion of the ventrals ; second and third spines longest : 

 origin of second dorsal behind that of the anal ; its anterior rays are longest, but 

 shorter than those of the anal: ventrals almost or quite reaching the vent: upper 

 pectoral rays reaching slightly beyond the \ertical of the ventral sjjine. 



Colour-markings. Bleached after long immersion in alcohol, but with 

 numerous minute dots on the back, which border the scales laterally: a silvery 

 lateral band covering a single row of scales extends from behind the pectoral to 

 the base of the tail : fins with dark dots. 



Described from several specimens selected from a series. 40-54 mm. long: 

 the figure represents the largest example. They diflfer somewhat in their propor- 

 tions from Steindachner's description of A. cyrcsii. but having been obtained at 

 Strangways Springs, in the vicinity of Lake liyre. they are almost certainly that 

 species. 



Two specimens bearing Zietz"s label "AtUcrina intcrioris, Strangways and 

 Coward Springs." are identical with those described above. 



This species is closely allied to C. ftuviatilis McCulloch, but differs in having 

 smaller scales, there being 13-14 in a transverse series instead of only 6-10. 



Loc. Strangways Springs, southern Central .Vustralia. 



Family CENTRARCHIDAE. 

 NANNOPERCA Gunther. 



Naiinoperca Gunther, Proc. Zool. Soc, 1861, p. 116 [aitstralis); Klunzinger, 



Sitzb. Akad. ^^'iss. Wien. Ixxx. i. 1879. p. 429. Macleay. Proc. Linn. Soc. 



N.S. Wales, v. 1881. p. 342. 

 Paradulcs Klunzinger. .\rch. \aturg. xxxviii. i. 1S72. p. 20 { ohsciiriis ) . Not 



Paradiilcs Bleeker. 1863. 

 Micropcrca Castelnau. Proc. Zool. Soc. \'ict. i. 1872. p. 48 (yarrac). Macleay, 



Proc. Linn. Soc. N.S. Wales, v, 18S1, p. 308. (Not Micropcrca Putnam. 



1863.) 

 £rf^/ia Ca.stelnau, Proc. Zool. Soc. \'ict, ii. 1873, p. 123 ivittata). Macleay. 



Proc. Linn. Soc. N.S. Wales, v, 1881. p. 340. Ugilby, Proc. Linn. Soc. N.S. 



Wales, xxiv, 1899, p. 175. Regan. .\nn. Mag. Nat. Hist. (7). xviii. ujo'k p. 



452. McCulloch, Rec. W. Aust. Mus. i, 1912, p. 85. 



Body oblong, compressed: scales large, ciliated: lateral line more or less 

 incomplete, usually interrupted, the anterior imrtion parallel to the back, the pos- 

 terior extending along the middle of the caudal peduncle : its tubes simple and 

 irregularly spaced, and crossing the whole length of the exposed portion of the 



