832 DESCRIPTION OF A NEW SPECIES OF TIIERAPON, 



distance from the snout to the centre of the orbit, and five times in 

 the head ; the space between the orbits is one-third greater 

 than the diameter of the eye ; the head is four times in the 

 total length ; the caudal fin emarginate ; height of body from 

 between the first dorsal spine and the base of ventral is three 

 times and a half in the total length ; the fifth dorsal spine 

 is the longest, nearly three times as long as the first, which is 

 short and stout ; the third anal spine is very strong and thick, 

 twice the length of the first and as long as the fifth dorsal ; 

 scales small, about 94 rows along the lateral line, preoperculum 

 strongly serrated at its lower angle and hinder margin ; oper- 

 culum with two spines, the lower one often double ; preorbital 

 and coracoid serrated, the maxillary reaches to the perpendicular 

 from the first nostril, no scales on the snout or upper part of 

 head. General colour blackish, the belly silvery, fins opalescent 

 when alive. 



I found this species spawning in the Macquarie Elver in the 

 month of November, and at the same time the following species 

 were also taken. 



Therapon Eichardsoni, Casteln. 

 The Silver Perch. 



Ctenolates flavescens, Gimth. 



The Yellow Belly. 



The colour when alive is of a beautiful pale olive-green, the 

 belly silvery, tinged with golden-yellow, in full grown specimens 

 the back becomes of a darker olive-green, fins opalescent, the eye 

 black with a narrow white ring, head like the back. They 

 spawn in October and November, young fry apparently of this 

 species were taken about half an inch in length. 



Oligorus macquariensis, Cuv. et Vol. 



Fine specimens of this beautiful fish were taken, from two or 

 three ounces in weight up to six pounds ; they vary considerably 



