234 SCLEEODEHMI. 



ing beyond the abdominal flap. Brown, marbled with darker ; a 

 largo black blotch below the anterior part of the dorsal fin ; caudal 

 fin with three dark cross bands. 



Celebes; Amboyna. 

 a. Type of the species, 3^ inches long. Amboyna. From Dr. 

 Bleeker's CoUection. 



5. Monacanthus curtorhynchus. 



Monacanthus cui-torhynchus, Bleek. Nat. Tych. Ned. Ind. viii. 1855, 



p. 430. 

 Paramonacanthus curtorhynchus, Bleek. All. Ichth. Balist. p. 130, 



pi. 227. fig. 2. 



D. 28. A. 27. 



Skin finely velvety. Body oblong, its depth being two-fifths of 

 the total length (without caudal). Pectoral fin situated behind the 

 vertical from the orbit. Snout produced, with the upper profile 

 convex. Dorsal spine rather feeble, rough, but without barbs, 

 three-fifths as long as the head, situated above the hinder part of 

 the orbit. Caudal fin rounded, sometimes the upper ray produced 

 into a short filament; anterior part of the dorsal and anal fins 

 elevated. Ventral sjune tapering, moveable, without spinclets pro- 

 jecting beyond the abdominal flap. Brown, clouded and spotted 

 with darker ; caudal fin with two blackish cross bands. 



Amboyna. 

 a. One of the typical specimens, 4 inches long. From Dr. Bleeker's 

 Collection. 



3. Ventrcd serine none. 

 6. Monacanthus prionurus. 



Alutarius priouurus, Blevk. Vcrh. Bat. Gen. xxiv. Balist. p. 20, pi. 3. 



fig. 6 ; Jlollard, Ann. So. Nat. 1854, ii. pi. 14. fig. 10 ; 1855, iv. 



p. 21. 

 Paraluteres priomirus, Bleek. Atl. Ichth. v. p. 1.38, pi. 227. fig. 1. 



D. 25. A. 24. 



Skin finely granulated ; sides of the tail with fine bristles and 

 two pairs of spines pointing forwards. Body moderately elevated, 

 its depth beiag one-half of the total length (without caudal). Snout 

 moderately produced, with the upper profile slightly concave. 

 Dorsal spine of moderate strength, curved, shorter than the snout, 

 without barbs, inserted behind the orbit. Gill-opening below the 

 hind part of the orbit. Caudal fin rounded ; dorsal and anal fins 

 low. Ventral spine none. Three broad black bands across the 

 back ; head and anterior part of the trunk with black dots, confluent 

 into undulated lines on the throat. (BlJir.) 



Eas1.-Indian archipelago ; New Guinea. 



7. Monacanthus trossulus. 



Aleuterius trossulus, IxicJunrh. Voy. Erch. &,■ Terr. Fish. p. 68, pi. 40. 

 figs. 5 & (5; Hollard, Ann. Sc. Nat. 1855, iv. p. 0, pi. 1. fig. 1. 



