BY W. MACLEAY, F.L.8. 51 



small, without spine, or rudimentary, abdominal. Branchiostegals 

 three or four ; air-bladder large, four gills, pseudobranchire. 

 Pyloric appendages none ; intestinal tract rather short. Vertebras 

 in small number. 



Genus Centriscus, Cuv, 

 Body scaly or covered with prickles. 

 All Seas. 



646, Centriscus humerosus, Eichards. 



Voy. Erebus and Terror, p. 56, pi. 34.— Gunth., Cat. III., p. 522. 

 D. 7/15. A. 17. C. 4x4x5x5. 



The height of the body is somewhat less than the distance of 

 the operculum from the base of the caudal. The second dorsal 

 spine is exceeding long and strong, its length being a little more 

 than one-half the distance of the opercle from the caudal. The 

 bodji is strongly compressed and elevated, covered with very 

 small scales each terminating in a spine, and with two series of 

 bony plates on the side of the back. The first dorsal fin is 

 situated far back and immediately above the second. 



South Australia (Eichardson). 



Genus Amphisile, Cuv. 



Body elongate, strongly compressed, provided with a dorsal 

 cuirass formed by portions of the skeleton ; the longitudinal axis 

 of the tail is not in the same line with that of the trunk. Scales 

 none. Teeth none. Two dorsal fins situated on the hindmost 

 part of the back ; ventrals rudimentary. 



Indian and Chinese Seas. 



647. Amphisile strigata, Gunth. 



Gunth., Cat. Fishes III., p. 528. 



D. 3/10. A. 12. C. 10. P. 12. V. 4. 



