250 SCLEHODEKJII. 



Skin minutely granular. Adult specimens with the sides of the 

 tail covered with short, fine, setiform bristles, and with two pairs of 

 strong, straight, conical spines. Body oblong, its depth being one- 

 third of the total length (without caudal). Snout produced, with 

 the upper profile convex. Dorsal spine of moderate strength, 

 straight, much shorter than the snout, four-edged, each edge with a 

 series of barbs. Caudal fin rounded ; dorsal and anal fbis low. 

 Ventral spine none ; abdominal edge trenchant. Green, with blue 

 dots over the whole body ; the spots are replaced by blue oblique 

 and longitudinal lines on the side of the head and anterior part of 

 tlie trunk. The part of the tail which is armed with bristles and 

 spines is of an orange-colour. Fins green. 



Australia, 

 rt. Twelve inches long : stufi'ed. 



33. Monacanthus spilomelanurus. 



Balistes spilomelauurus, Quoy 6f Gaim. Voy. Uran. Zoul p. 217. 

 Aleuterius paragaudatus, Richards. Voy. Ereh. S; Terr. Fish. p. (Mi, 

 pi. 39. figs. 1-4 ; Hollard, Ann. Sc. Nat. 1854, ii. p. 357. 



D. 30-32. A. 28-32. 



Skin minutely granular. Adult specimens (males ?) with a tooth- 

 brush-like cluster of setiform spines on the side of the tail, between 

 the dorsal and anal fins. Body oblong, its depth being about one- 

 third of the total length (withoiit caudal). Snout long, pointed, the 

 up])er profile being much more oblique than the lower. Dorsal 

 spine of moderate strength, rather short, straight, four-edged, each 

 edge with a series of barbs ; the spine is inserted above the hinder 

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

 height. Ventral spine very small, and in young examples absent. 

 Brownish, with brown and light dots about the head and body ; 

 side of the body with dark undulated lines. Young examples with 

 a narrow light line, edged with black above and below, from the 

 snout through the lower part of the eye along the middle of the 

 side ; another brown line runs from one eye round the forehead to 

 the other. Caudal fin with a vertical intramarginal black band, 

 which also disappears in old examples. 



Australia. 

 a. Adult (S Laches long), not in good state. From the Haslar Col- 

 lection. 

 I. Young. Van Diemcn's Land. From the Haslar Collection. — 

 Type of A. parcujaiulatus. 



c. Young: stufi^ed. Swan River. 



d. Young. Port Lincoln. From the Collection of the Zoological 



Society. 



c, f-h. Half-grown and young. Sydney. From Mr. Krefit's Col- 

 lection. 



/. Younar : stufted. Australia. 



