50. CEPHALACANTHTJS. 223 



shorter one halfway between tlie former and the dorsal fin ; the first 

 dorsal spine detached from the others. The distance between the 

 eyes is one-third the length of the head, and nearly equal to that 

 of the proeopercular spine ; the distance between the two scapidar 

 spines is rather less than the depth of the notch between. Pectorals 

 spotted with brown and dotted with bluish-white. 

 Indian Ocean and Archipelago. 



a. Half-grown : not good state. Japan. Purchased of Mr. Frank. 



b. Half-grown. China. Presented by Sir J. Richardson. 



c. d. Young. China. Presented by Captain Sir E. Belcher. 

 e. Half-grown. Araboyna. Purchased of Mr. Frank. 



/. Young. Ambojna. Purchased of Mr. Frank. 



fj. Adult : stuftcd. Cape Seas. Presented by Sir A. Smith. 



h. Adult : bad state. Old Collection, as Triyla dissimilis. 



?'. Half-grown. 



k; I. Young. Presented by the Zoological Society. 



3. Dactylopterus macracanthus. 



Blcekcr, Celebes, vi. p. 449. 



D. 1 I 1 I 6 I 8. A. 6. 



A long, isolated, ray-like filament behind the occiput ; the distance 

 between the two scapular spines is 1| to If in the depth of the 

 notch between, which equals the length of the praeopcrcular spine ; 

 the scapulary spines reach to the vertical from the second spine of 

 the continuous first dorsal fin. Pectoral with a large, round, black 

 blotch, spotted with yellow. 



Molucca Sea. 



a. Dried : bad state. 



4. Dactylopterus chirophthalmus. 



Bleeker, Natmirk. Ti/dscJir. Ncderl. Ind. 18o4, iv. p. 494. 

 D. 1 I 1 I G I 8. A. 6. 



A long, isolated, ray-like filament behind the occiput. The distance 

 between the two sca])ular spines is 1| to If in the depth of the notch 

 between, which equals the length of the praeopercular spine. The 

 scapulary spines reach to the vertical from the middle of the con- 

 tinuous first dorsal fin. Pectoral with a large, roimd, black, white- 

 edged spot. (-B?.) 



Sea of Banda-Neira. 



50. CEPHALACANTHUS. 



Cephalacautlius, Laccp. iii. p. 323 ; Cuv. iif Vol, iv. p. 138. 



Head parallelepiped, with the upper surface and the sides entirely 

 bony ; scapula and angle of the praeoperculum produced into long 



