264 SCLEltODERJlI. 



d-e. Adult and half-grown : skins. Australia. Presented by the 



Earl of Derby. 

 /. Half-grown : skin. North-west Australia. Turchased of Mr. 



Buboulay. 



Ill, Carapace foiir-rkhjcd, with .y)ines. 

 15. Ostracion diapliamis. 



POatracion, sp., Gronor. Zaophi/l. p. 4o. no. 176. 



Ostracion diapbanus, Bl. Sclm. p. 501 ; Blcvk. Act. Soc. Sc. Indo-Ncerl. 



iii. Japan, iv. p.;58 ; IlolIanJ, Ann. 8c. Nat. IS-")?, vii. p. 157. 



brevicornis, Schley. Faun. Japan. Poiss. p. 297, tab. 1(30. fig. 3. 



undeciiii-aculeatus, SmitJi, III Zool. S. Afr. pi. 17; Custeln. Mem. 



Puiss. Afr. Avstr. p. 78. 



pentacornis, Bennett, Whalhu/ Vai/ai/c, p. 200. 



La3topbrys diapbanus, Kaup, Arch. Ktn/esch. 1855, p. 217. 

 Ostracion (Acaiitbostracion) cornutus, Bleek. Atl. Ichth. Ostrac. p. 33, 



pi. 2. tig. 2, and pi. 4. bg. 3 (not L., see Peters, Munatsher. Ak. Wiss. 



^er/. 1808, p. 401). 



Carapace fonr-ridgcd ; the broad bridge across the back of the 

 tail is formed by four transverse series of scutes. A pair of short 

 conical spines divergent, and pointing forwards in front of the orbits. 

 A triangular compressed spine in the middle of the back ; generally 

 a small spine on each dorsal ridge, opposite to the central spine. 

 Ventral ridge terminating behind in a strong flat spine, and fre- 

 quently with two other smaller spines on the side. Interorbital 

 space deeply concave. Caudal fin of moderate length. Sometimes 

 uf uniform coloration, sometimes A^dtli bluish, sometimes with black 

 spots. 



From the Cape of Good Hope to Japan and Australia. 



o-c. Adult (8| inches), half-grown, and young: skins. Cape of 

 Good Hope. — Types of 0. undccim-acaleatus. 



d. Adult. Japan. Purchased of Mr. Jamrach. 



e. Young. Jajian. 

 f-h. Young. Pacific. 

 i-m. Adult : skins. 



■a. Young. Presented by G. Bennett, Esq. 



16. Ostracion fornasiiii. 



Ostracion loruasini, Bianc. in Mem. Accad. Sc. Bulm/n. vi. p. 151, pi. 1. 



fig. 1; Gihith.inFish. Zaiiz.]).l-2i). 



cornutus, var., Peters, Wiee/ni. Arch. 1855, p. 278. 



Lastophrys foiuasini, Kaup, If'ief/in. Arch. 1855, p. 217. 



Ostracion pentacantbus, Blcek. Act. Soc. Sc. Indo-Xeerl. ii. Aniboi/na, 



viii.p. 98. 

 ( Acantbostracion) foniasini, Bleek. Atl. Ichth. Ostrac. p. 34, pi. 3. 



fia'. 4. 



Carapace four-ridged, the bridge across the back of the tail 

 formed by three transverse series of scutes only. A pair of short 

 conical spines pointing forwards, jMvcdlcl or slighthj coHvcrf/ent in 

 front of the orbits. A large triangular compressed spine in the 



