OUO ^'EW YORK STATE MUSfeUM 



Group ZEOIDEA 

 Family zeidab 

 John Dories 

 Genus zenopsis Gill 

 Body ovate, mucli compressed, without scales, and without 

 warts or humps in the adult. Head deeper than long, its ante- 

 rior profile steep. Mouth rather large, upper jaw protractile; 

 teeth small on jaws and vomer, none on the palatines. Various 

 bones of the head and shoulder girdle armed with spines. 

 Series of bony plates along the sides of the belly and the bases 

 of both dorsal and anal, each plate armed with a strong spine. 

 Eye large, placed high. Gill rakers short. Dorsal spines very 

 strong, usually 10 in number, some of them filamentous; anal 

 spines three; ventral fins long, the rays I, six or I, seven. 

 Caudal peduncle slender, the fin not forked. Three species 

 known, differing from the European genus Zeus mainly in 

 the presence of three anal spines instead of four, and in the 

 greater development of the spinous armature. Pelagic. 



290 Zenopsis ocellatus (Storer) 

 John Dory 



Zeus ocellatus Stoker, Proc. Bost. Soc. Nat. Hist. VI, 385, 1858, Province- 

 town. Mass.; Putnam in Stoker, Hist. Fish. Mass. 279, 1867. 



Zenopsis ocellatus Gill, Proc. Ac. Nat. Sci. Phila. VI, 126, 1862; Jordan & 

 Gilbert, Bull. 16, U. S. Nat. Mus. 456, 1883; Goode & Bean, Oceanic 

 Ichth. 224, with plate, 1896; Jordan & Evermann, Bull. 47, U. S. Nat. 

 Mus. 1660, 1898, pi. CCXLVI, fig. 618, 1900. 



Body short, deep, compressed, its greatest depth one half of 

 total length including caudal; the caudal peduncle short and 

 very slender, its least depth scarcely more than one half diame- 

 ter of eye. Head subquadrangular, large, the mouth large and 

 very oblique, the maxillary one sixth of total length without 

 caudal, its width posteriorly nearly one half its length. A slight 

 concavity over the eyes. Eye two ninths as long as the head 

 and placed high. Snout two fifths as long as head. Top of head 

 with roughish ridgos, but without spines; a spine at the base 

 of each dentary bone; a supplemental maxillary bone; teeth 

 nearly obsolete. Gill rakers short. Skin naked except for the 



