REVIEW OF THE QUEENSLAND POMACANTHINJi.—OGILBY. Ill 



developed, 2-6 in the last, which is 1-33 in the soft fin and 4-25 in the body- 

 length; soft dorsal with obtusely angular outline, the anteromedian rays the 

 longest, extending to above the middle of the caudal fin ; procumbent spine, if 

 present, small and concealed. Caudal tin feebly rounded, the middle rays as 

 long as the outer and 4-8 in the length of the body. Anal with iii 21 rays, 

 originating below the 10th dorsal spine ; spines strong and graduated, the first 

 1-55 in the last, which is 1-15 in the longest and rather more than the last dorsal 

 spine; soft anal similar to, but slightly shorter, lower, and more rounded than 

 the soft dorsal. Pectoral with 19 rays, its length 34 in that of the body; 5th 

 ray longest, extending to below the 8th dorsal spine Ventral much longer than 

 the pectoral, the spine half as long as the outer ray. which is produced, 2-55 in 

 the body-length, and reaches to the 2nd anal spine. 



Violaceous blue, with numerous alternate pearly white and pale blue 

 narrow semicircular bauds on the trunk and tail, the points of the crescents 

 directed backwards and usually coalescent on the vertical fins; the bands on the 

 head, peduncle, and caudal fin are vertical or nearly so. but a rather broider 

 pearly band runs backward from the snout to the occiput and a slightly conver- 

 gent pair from behind the eyes. Cheeks, bases of pectorals, and outer half of 

 spinous dorsal yellowish; caudal with a broad terminal blue-gray band. 



Etymology : — Latin, Si micirculatus, semicircular. 



Beg. No. of Queensland Museum specimen: — I. 11/197. 



Measurements of the specimen described: — See p. 116. 



Range: — Seas of India and Malaysia eastward to New Ireland and Fiji. 

 Its occurrence at Yv'oodlark Island was mentioned by Montrouzier as long ago 

 as 1857, and some twenty years later Macleay obtained it from the Engineer 

 Croup, a short distance east from Moresby Island. Finally in the following year 

 de Vis recorded it from the "Coast of Queensland*' as //. semicircularis. 



Dimensions: — A small species, apparently not exceeding 120 millim. in 

 length. 



CELETODOXTOPLCS Bleeker. 



Chceiodontoplus Bleeker, Arch. Neerl. Sci. Nat., xi, pt. 2, 1876, p. 307 [mesoleucus). 



Body ovate or elevated, strongly compressed. Scales minute, adherent, 

 ctenoid, with the entire exposed surface densely spinulose. Lateral line complete 

 or incomplete, rarely interrupted, the tube simple. Head short and deep, with 

 subvertical profile, rather short rounded snout, deep preorbital, wholly scaly. 

 Mouth terminal, with narrow transverse cleft, the jaws equal ; maxillary mostly 

 concealed when the mouth is closed, the exposed portion scaly. Teeth in the 

 jaws in several series, small, slender, setiform ; roof of mouth and tongue tooth- 

 less. Nostrils superolateral and approximate, the anterior tubular, nearer to 

 the eye than to the tip of the snout. Eye moderate and anteromedian, high but 

 not encroaching upon the cranial profile. Preoperele with a strong pungent 



