/. OSTRACION. . 2;)-^ 



6. ANACANTHUS. 



Anacfinthus, Gray, Zoul. Migc. JS31, p. 8. 

 Pof^ouofinathus, BIcck. Verh. Bat. Gen. xxiv. Balist. p. 2^5. 

 Psilocephalus, [Swains.) Bleeh. Ned. Tyds. Dicrk. 18()(>, iii. p. 14. 



13ody coinjn'csscd, elongate, covered with, minute asperities. Den 

 tition as in Mon acanthus. The first dorsal fiu reduced to o single 

 feeble spine. Ventral fins none. Lower jaw with a fleshy bai'bel. 

 Vertebrfe 29-30. 



East-Indian archipelag<"> 



1. Anacanthus barbatus. 



Balistes (Anacanthus) barbatus, Gray, Ind. Zool. c. fig., sua Zonl. 



Misc. 1831, p. 8. 

 Alutarius barbatus, Cant. Mai. Rept. p. 357, pi. 8. fig. 1. 

 Pogonognatlms barbatus, Bleek. Verh. Bat. Gen. xxiv. Balist. \\ 24, 



pi. 5. fig. 11. 

 Aluteriis barbatus, Hollard, Ann. Sc. Nat. 1855, iv. p. 17, pi. 1. iig. A. 

 Psilocephalus barbatus, i^Swrins.) ^- Bleek. Atl. Ichth. Balist. p. 1 4;i, 



pi. 226. fig. 1. 



D. 1 I 44-51. A. 59-65. 



The height of the body is two-fifths of the length of the head, whicb 

 is two-fifths of the total (without caudal). Caudal fin nuich elongate. 

 longer than the head. Dorsal spine very feeble, setiform, above th(^ 

 hind margin of the orbit. 



East-Indian archipelago. 



a. Several specimens : skins. Pinang. From Dr. Cantor's Col- 

 lection. 

 h, c. Adult and young. 



Third Group. OSTRACIONTINA. 



7. OSTRACION. 



Ostracion, Artedi, Genera, p. 55; Hollard, Ann. Sc. Nat. 1857, vii. 

 p. 121 et seqq. 



The integuments of the body are modified into a carapace com]>ofceti 

 of juxtaposed hexagonal osseous scutes, the snout, bases of the tins, 

 and hind part of the tail being covered by soft skin. !Month small, 

 maxillary and intermaxillary bones coalcscent, each jaw^ with n 

 single series of small slender teeth. One short dorsal fin (without 

 spine) opposite to the short anal. Ventral fins none. Vertebra? 14, 

 the five last extremely short, the anterior elongate ; ribs none. 



The species may be referred to two subgenera : — 

 «. Carapace closed behind the anal fin : Ostracion, p. 250. 

 3. Carapace open behind the annl fin : Aracana, p. 20(5. 



