174 TBLEOSTEI. ACANTHOPTEBY<H1. 



938. (1.) Chorinemus sancti-petri. 



Chorinemus sancti-petri, Ciiv. Sf Val. H. N. Poiss. viii, p. 370, pi. 236 ; 



Day, Fish. India, p. 230, Suppl. p. 789 (see synon.). 

 Nga moozin, Arracan. 

 B. viii. D. 7 | 1/19-21. P. 17. A. 2 | 1/18-19. C. 15. 



Length of bead 5| to 5|, of pectoral 4, of caudal 4|, height 

 of body 4| to 4| in the total length. Eyes diameter 4 to 4| in 

 length of head, 1 to 1^ diara. from end of snout and also apart. 

 Profile above orbit slightly concave. Maxilla concealed by the pre- 

 orbital except in the last third of its course. Central longitudinal 

 crest on the skull scarcely elevated. Angle of preopercle slightly 

 produced. Teeth several villiform rows anteriorly in both jaws, 

 a single one in last f of premaxillaries ; two rows in lower jaw ; a 

 triangular patch, elongate posteriorly, on the vouier ; a pyriform 

 band, largest anteriorly, on the palatines, and also on the tongue. 

 Fins spines of first dorsal flattened, laterally expanded into a 

 lanceolate form, and keeled along their centre; in the adult each 

 spine does not extend so far as the base of the next before it, but 

 they slightly overlap in the young. First portion of second dorsal 

 elevated, f height of body, and higher than commencement of 

 anal. Caudal deeply lobed. Scales exposed portions of each 

 lanceolate and pointed, with a line along the middle and the 

 posterior part depressed, behind the exposed lanceolate portion each 

 scale ends in a narrow pedicle rather more than half its entire 

 length. In the young the scales are not quite so pointed, and when 

 removed appear much like a spoon. Lateral line makes an obtuse 

 angle opposite middle of pectoral fin, thence it gradually slopes 

 downwards, becoming straight beneath the first dorsal ray. Colour 

 a bluish-grey spot on the opercle, and a row of from six to eight 

 dark blotches above the lateral line; sometimes, more especially in 

 the adult, a second row beneath it. Summit of soft dorsal black. 



Hob. Eed Sea, east coast of Africa, seas of India, Malay Archi- 

 pelago and beyond ; attaining at least 20 inches in length.* 



939. (2.) Chorinemus moadetta. (Fig. 60.) 



Chorinemus moadetta, Cuv. $ Val H. N. Poiss. viii, p. 382 ; Day, 

 Fish. India, p. 230, pi. li B, fig. 1, Suppl. p. 789 (see synon.). 



B.viii. D. 7 | 1/21. P. 19. A. 2 | 1/18-19. C. 17. 

 Length of head 5| to 5f , of caudal 8|, height of body 5| in the 

 total length. Eyes diameter 4 to 5 in length of head, 1 J diam. 

 from end of snout and also apart. Dorsal profile rather concave 

 above the orbits, the central and lateral ridges on the summit of 

 the head well developed. The lower jaw somewhat the longer, 



maxilla uncovered from beneath first third of eyes. Teeth in the 



premaxillaries in a single row, the two anterior teeth large and 

 rather canine-like ; teeth in the lower jaw in two rows, the outer 



