208 RECORDS OK TIIK AUSrifALIAX MrsKr.M. 



Synoniiniii. — Vaemhtijohiitihin cilriiiiis lias beeu sepai-ated fi*om Uohiodnn 

 because it lias no canines. Tliougli its inner enlai-ped jnandibnlar teeth 

 are smaller and less caniniforiu than in tlie tyf)ic'al s{)ecie8 of (iohitidmi, 

 theV are nevertheless similai- in both structure and position, and we do not 

 i-egard them as sufficiently cliaracteristic to justify the maintenance of 

 the pfenns. Kllerya, Castelnan, is inaccunitely and superficially defined, 

 but is evidently based upon a species of (lohiodun (see notes under 

 (}. vertical is). 



Key to the Australian species. 



an. F'irst dorsul roundt'il. tlie tiftli spine highest. 



h. Colour li^litcr, usually witli tnices of five broad ilarker Kars across tlif head and 

 j)Hftoral base; body very docp, liead deeper than long verliculis. 



bb. Colour darker ; head uniform or witli narrow blue lines across the sides and 

 j)ectoral-l>ase ; body les.s elevated, head al>out as deep as long. 



c. Head and pectoral-base with five light dark-edged lines (piiiitiuestiigittits. 



cc. Head uniform or witli indistinct lines var. ceratneniiis. 



ua. First dorsal angular, the anterior spines highest. 



d. Head and pectoral liaso witli four ) due cross-Hues cHi-intn. 



(loiiioiMiN vKiMK'Ai.is, AJleijnt' is' Marleuij. 



(Plate x.x.vii., tig. 2.) 



.^ KUenju iiiii'-olor, Castelnan, I'roc. Zoo). Soc. Vict., ii., lS7;!, p. il5. 

 Gohioihm itiilrolnr, Macleay, Pi'oc. Ijinn. Soc. N.S.Wales, v., iSSl, p. 013. 

 (,'()f>indi)ii rrrtit'iills, Alleyne A' Macleay, Pi-oc. Linn. Soc. N.S.Wales, i., 



1S77, p. 83:i, pi. xii"., tig. I. /'/., Macleay, /-",•. c//., v., 18Sl, p. C>12. 

 Vseiiih>iii)hiodoii vertiralif, Jordan it Scale, Hull. l.S. Fish. HurcMU, xxv., 



1900, p. 410. 

 (Inhiii^ doinjhisi, Kcid, (Ircat Hiiiiicr Het'f, ISiKi, p. :!1(), p|. xvi., iig. 12. 



I), vill ; A. 10; V. i/5; P. li> ; ('. 17. Depth before the ventntls 

 •J"i in the length to the liypural joint ; liead :>-5-r}-(j in the same. Kye 

 4"(i-4"7 in the head, and subequal to its distance from the premaxillary 

 symjihysis; interocular space equal to the eye diameter. Caudal peduncle 

 as deep as long. Hreadtli before the pectorals 2"()-2-7 in the height. 



Head mucli deeper than long, greatly conipi-essed ; the profile of the 

 mu/zle is subvci-tical and the forehead and chin are veiy convex and 

 eqinilly J'ounded. Nostrils in low tubes, tlie posterior placed just befor*' 

 the eye, the anterioi- nearer the upper lip. .\ .series of seveial large 

 tubular pores extends around the preopercniar border to behind the eye; 

 two othei's ai"e on the intei-orbital space, and a pair between the postei-ior 

 nostrils. Microscopic papilla- are present on the lower preopercniar 

 border, and beneath the lower lip. Interocular space very convex. Mouth 

 a little oblique, the jaws equal ; maxilla extending backward to below tin- 

 anterior half or the middle of the eye. Kach jaw with a nan-ow band of 

 teeth, the outer row of which is strong, the otheis villiform ; an enlaigecl 

 curved canine on each side of the mandibulai- symphysis. (Jill-opening as 

 wide as the base of the pectoral. 



