BY W. MACLEAY, F.L.S. 9 



557. Petbosctrtes guttatus, n. sp. 



J). 12/18. A. 21. 



Height of body about equal to tbe length of the head, and 

 one-fifth of the total length. Snout slightly pointed, the profile 

 oblique, rather longer than the diameter of the eye, which is 

 about equal to the interorbital space ; a low skinny ridge from 

 between the eyes to the occiput ; the latter part of the dorsal fin 

 elevated, as high as the body and extending to the tail ; ventral 

 fins two-rayed, the inner much longer than the other. Eeddish, 

 with four irregular rows of deep blue small spots along the 

 sides, and a few more minute ones on the thorax ; the fins are 

 immaculate ; the rays dusty-yellow, the membranes transparent. 



Port Jackson (Macl. Mus.) Length two to three inches. 



558. Petrosctetes eothndiceps, n. sp. 



D. 34. A. 24. 



Height of body one-seventh, and length of head one-sixth of the 

 total length. Head very round and obtuse above, below and in 

 front. Diameter of eye rather more than the width of the inter- 

 orbital space, and less than its distance from the extremity of the 

 snout. Some of the rays of the vertical fins have a slight tendency 

 to run into filaments. Colour reddish-3-ellow, with a broad 

 longitudinal line of reddish-brown blotches along the middle of 

 the body from the eye to the tail, a black spot behind the eye 

 and another above the pectoral fin. The fins yellow, the anterior 

 part of the dorsal, and the base of the entire dorsal faintly 

 spotted with brown. 



Port Jackson (Macl. Mus.) Length two and a-half inches. 



559. Peteoscietes ceisticeps, n. sp. 

 D. 30. A. 21. 



Height of body about equal to the length of the head, and one 

 sixth of the total length. Head almost vertical in front and 



