5. 310NACANTUUS, 247 



armed with spikes. Caudal fin rounded, lirownish grey • bluisli- 

 green curved In.es on the sides of the snout; other stripes below 

 thcTO, ot a brown colour, and running towards the pectoral and the 

 abdomen Ui-own horizontal lines on the upper anterior part of the 

 trunk. Upper half of the body witli three broad, black lonj^itudinal 

 bands. Caudal hns with two blackish cross bands and wliite 

 marf,nn. {Steind.) 

 Cliina. 



26. Monacanthus gunnii. 

 D. 34. A. 33. 



Skin velvety, without distinct scales. Body somewhat elevated, 

 Its depth being a little more than one-half of the total length (with- 

 out caudal). Snout rather produced, with the upper profile very 

 sbgLtly concave. Gill-opening much advanced, its greater portion 

 being in front of the eye ; pectoral fin below the middle of the orbit. 

 Dorsal spine strong, above the middle of the orbit, with a double 

 row of barbs in front and behind, the anterior rows being much 

 closer together than the posterior. Caudal rounded ; dorsal and 

 anal hns low. Ventral spine small, fixed, with spikes pointing 

 forwards and backwards. Dark brown, mottled wth black. 



\ an Diemen's Land. 



a. Eleven inches long. Van Diemen's Land. Presented by R. 

 (junn, Esq. 



27. Monacanthus macrurus. 



Monacanthus macrurus, Sleek. Nat. Tyds. Ned. Ind xii 18o7 

 p. 226. ' ' 



Pseudomonacanthus macrurus, Bleeli. Atl Ichth. Balist. p 134 

 pi. 228. fig. 1. ^ ' 



D. 31. A. 29. 



Body covered with small spiny but very distinct scales, and with 

 scattered cutaneous filaments. Adidt examples with a series of 

 large, simple, or hooked spines on each side of the lower part of the 

 tail Body rather oblong, its depth being a little less than one-half 

 ot the total length (without caudal). Snout of moderate length 

 with the ujijyer profile concave. Gill-opening advanced, partly in' 

 front of the vertical from the anterior margin of the eye ; pectoral 

 fan below the middle of the orbit. Dorsal spine situated abore the 

 middle of the eye, rather strong, but much shorter than the head 

 armed m front with a double series of barbs which are closely set 

 and smaUer than tliose behind. Caudal fin rounded, as long as the 

 head ; dorsal and anal fins low. Ventral spine very small, fixed 

 not prominent. Olive-coloured, clouded with brownish; head' 

 body, and caudal fin willi numerous brown dots. ' 



East- Indian ardiipelago. 



«. Gne of the typical specimens, 7 inches long. From Dr. Bleeker's 

 Collection. 



