BY W. MACXEAY, F.L.S. 5 



blotches ; the dorsal fin is brown, with transverse whitish lines 

 formed of oval or rounded blotches ; a series of minute black 

 blotches near the edge of the fin ; caudal rounded, with three 

 transverse series of black dots ; anal brown, marked with whitish 

 round blotches ; pectorals grey, variegated with brown. 



Cape York (Castelnau). Length three inches. 



549. Blennius tjxicorxis, Casteln. 



Proc. Linn. Soc. N.S. Wales, Vol. III., p. 3S4. 

 Port Jackson. Length two inches. 



550. Blexxius castaxeus, n. sp. 

 D. 12/13. A. 19. 



Height of body about one fourth of the length. Head rounded 

 and nearly vertical in front, the eyes about half their diameter 

 apart ; the tentacle above each orbit short, broad, and three or 

 four-pointed ; a lateral line consisting of skinny threads extending 

 from the upper angle of the operculum in a curve to the middle 

 of the sides where it seems to terminate. Colour yellowish, with 

 reddish-brown spots along the back and sides, disposed in pairs, 

 and some brownish bars on the head. Fins yellowish, the dorsal 

 with a black spot between the first and second spines, and a few 

 faint brownish marks throughout ; anal with a slight blackish 

 margin. 



Port Jackson (Macl. Mus.) 



Genus Pethosctrtes, Piipp. 



Body moderately elongate, naked. Snout generally short, or 

 of moderate extent. A single dorsal fin, (sometimes with a 

 semidetached portion), ventrals jugular, composed of two or three 

 rays. Cleft of the mouth narrow ; a single series of immovable 

 teeth in the jaws ; a strong curved canine tooth behind the 

 others, much longer and stronger in the lower jaw. Head some- 

 times with tentacles. Gill-opening closed beneath, and reduced 



