102 LABEIDJE. 



distinctly serrated ; operculum produced into a membranaceous flap 

 reaching behind the level of the base of the pectoral ; the first ventral 

 ray twdce as long as the second. Light reddish : a large black ocellus 

 edged with yellow on the operculum and behind each of the two first 

 dorsal spines ; cheeks, sides of the body, the upper part of the caudal 

 and the base of the anal dotted. {Pet.) 

 Mozambique. 



2. Pteragogus tseniops. 

 Cossyphus taeniops, Peters in Wiepn. Arch. 1855, p. 262. 

 D. 1^. A. ■^. L. lat. 25. L. transv. ^^■ 



The upper profUe of the head concave above the eyes ; prajoperculum 

 distinctly serrated ; operculum produced into a membranaceous flap 

 reaching behind the level of the base of the pectoral ; the first ventral 

 ray twice as long as the second. No ocellus on the operculum ; a 

 single one behind the first dorsal spine ; a vertical brown band over 

 the head, through the eye towards the throat ; caudal with transverse 

 series of dark spots. (Pet.) 



Mozambique. 



15. COSSYPHUS *. 



Cossyphus, sp., Ctw. fy Val. xiii. p. 102. 



Cossj^hus, (jriinth. Ann. Sf Mag. Nat. Hist. 1861, vol. viii. p. 384. 



Hai-pe et Lepidaplois, Gill, Proc. Acad. Nat. Sc. Philad. 1862, p. 140. 



Body compressed, oblong, with scales of moderate size ; snout more 

 or less pointed ; imbricate scales on the cheeks and operclcs ; vertical 

 fins scaly on their basal portion. Lateral line not interrupted. Teeth 

 in the jaws in a single series ; fom- canine teeth in each jaw ante- 

 riorly; a posterior canine tooth (except in C. gouldii). Formula of the 



Inhabitants of nearly aU the seas between the tropics and of the 

 parts adjoining them. 



The genus as at present circumscribed forms a very natural group, 

 with the exception of C. gouldii, which has eleven dorsal spines only 

 and no posterior canine tooth ; this species, however, is known only 

 from a very large stufi'ed specimen. 



Our knowledge of C. tredecimspinosus is not much more perfect ; 

 it is so nearly allied to the other species of this genus, that the 

 occiu'rence of thirteen dorsal spines in the single specimen known 

 does not appear sufficient to justify a generic separation. 



* 1. Cossyphus vulpinus, Richards. Proc. Zool. Soc. 1850, p.71, and Ann. 8f Mat/. 



Nat. Hist. 1851, vii. p. 287.— Australia, (j). ~. A. j|.~) 



2. Julis (?) rubecula, Richards. Ann. 8f Mag. Nat. Hist. 1843, xi. p. 423.— 

 Queen Charlotte's Sound. 



