]68 MEMOIBS OF THE QVEENSLANI) MUSEUM. 



simple, and the others are bifid; tlie sixtli ray is longest and reaches almost half 

 its distance from the base of the last anal ray, and well beyond that of the 

 dorsal. Caudal forked. 



CoJoui'-nKirl'ing. — Greyish on the back, the sides and lower surface white. 

 Ill-defined grey markings form indefinite cross-bars and about eight imperfect 

 rings on the lateral line. Grey lines form narrow interrupted rows along each 

 series of scales on the upper half. Head witli grey spots on the opercles, and 

 the gill-membranes are ornamented Avith two large black spots on each side 

 above the operculum. Fins without markings. 



Described and figured from the holotype, 185 mm. long from the snout to 

 the end of the middle caudal rays. 



This species is apparently very similar to *S'. indicus Day, but its vertical 

 fins are without markings, and the gill-membranes are ornamented with a black 

 blotch which is not present in the Indian species. According to Day's descrip- 

 tion the ventral fins of S. indicvs are shorter than in /S». similis, the snout is as 

 long as broad instead of broader than long, and the adipose membranes around 

 the eye of S. similis are said to be wanting in S. indicus. S. similis differs from 

 S. kaianus Giinther in the num])er of dorsal and anal fin-rays, and in the 

 proportions of the snout. 



Locality. — Near the Capricorn Group, Queensland, 25-30 fathoms. 



Family APOGONID^. 



APOGON BREVICAUDATUS Weber. 

 Apogon hrevicaudatus Weber, Notes Leyden Mii.seum, xxxi, 2. 1909, p. 158, and Siboga Kept., 



Fische, Ivii, 1913, p. 232, pi. viii. fig. 3. 

 Amia berthce Ogilby, Ann. Qld. Mus. x, 1911, p. 47, pi. v. fig. 1, and Mem. Qld. Mug. i, 1912, 



p. 50. 



A fine example 112 mm. long, agrees in all details with Weber's figure of 

 this species, its markings being even better defined than in his illustration. A 

 comparison of it with a smaller example of A. herthcE, which was received by the 

 Australian Museum from Mr. J. D. Ogilby, proves the two to be synonymous; 

 the vertical bands shown in Ogilby 's figure disappear with age. 



Localities. — Capricorn Group, 25-30 fathoms; coll. Queensland State 

 trawler. 



Wide Bay, Queensland; Australian Museum, exch. J. D. Ogilby. 



Famu^y POMACENTRID.E. 



The following key to the genera of this family is submitted as tentative 

 only. It is largely a compilation derived from various smaller keys published 

 by Giinther, Jordan and Evermann, and others. 



a. Teeth fixed, extending along greater portion of free edge of each jaw. 

 b. Teeth conical or villifoim, not compressed. 



c. Preorbital with a strong t-.pine directed backwards. . .. .. .. Pkemnas. 



cc. Preorbital without a strong spine. 



