BY CHARLES W, DE VIS, M.A. 395 



Apogon RUDIS. 



D. 7, 1/9. A. 2/8. Lat. 24. Tr. 2/6. 



The height of the body and length of the head are each 3£ of 

 the total length ; the orbit is 2§, interorbit 4. 1 ,, and snout 5, of 

 the length of the head. The hind limb and half of the lower 

 limb of the preopercle" denticulated ; the maxillary reaches the 

 hinder third of the orbit. The first dorsal is nearly as high as 

 the second. 



Colour uniform yellowish brown. A broad black band at the 

 base of the second dorsal ; the first dorsal faint dusky. 



Length, 5 inches. Locality, Cardwell. 



Apogonicthys longicauda. 



D. 6, 1/9. A. 2/9. Lat. 38. Tr. 3/13. 



Height of the body, 3f , and length of the head 3^ in the total 

 length, or 2| and 2? respectively in the length, s.c. Orbit 4, 

 snout 3J, inter-orbit 5, in the length of the head. The length of 

 the caudal peduncle equals the height of the 2nd dorsal spine, and 

 is one-half greater than its own height. The 1st dorsal spine is 

 more than half the height of the body. The upper maxillary reaches 

 nearly to the vertical from the hinder edge of the orbit, 2nd dorsal 

 spine shorter than the 1st. Uniform brownish (dry.) Cheeks 

 and opercle finely brown-sprinkled ; edge of the first dorsal, second 

 dorsal and anal finely black dotted. A few brown dots on the 

 body and fins. 



Length, 4 inches. Locality, Queensland. 



Homodemus. Nov. gen. 



Six Branchiostegals, one dorsal with eleven spines, anal with 

 three. No canines. Teeth on vomer, palatines and jaws. Outer 

 row of jaw teeth larger, all villiform. No teeth on the tongue. 

 Operculum with an obtuse point, entire. Pre-operculum entire. 

 Scales small. Lower jaw the longer. 



