Jordan and Evermann. Fishes of North America. 1661 



ocellated spot in life, disappearing in spirits. Pelagic ; 1 specimen known, 

 taken off Provincetown, Massachusetts. Description from the original 

 type in the museum of the Boston Society of Natural History, (ocellatus, 

 ocellate.) 



Zeus ocellatus, STOKER, Proc. Bost. Soc. Nat. Hist., vi, 1858, 386, Provincetown, on Cape 



Cod. 

 Xenopsis ocellatus, JORDAN & GILBERT, Synopsis, 456, 1883; GOODE & BEAN, Oceanic 



Ichth., 224 with plate, 1896. 



652. ZENION, Jordan &. Evermann. 

 Zenion, JORDAN <fc EVERMANN, Check-List Fishes, 418, 1896 (hololepis). 



Body compressed and elevated, covered with very small scales ; mouth 

 protractile. Dorsal fins contiguous, the first with 6 or 7 low spines; a 

 short spine before the anal ; bony plates present along the bases of the 

 dorsal and anal fins. As in Zeus, ventral fins composed each of 1 spine 

 and 6 soft rays, not depressible in a groove. Very minute teeth in the 

 jaws and on the vomer, none on the palatine bones. Branchiostegals 8. 

 Deep seas. The single species described below seems to be the type of a 

 distinct genus, differing from the Australian genus Cyttus in the absence 

 of ventral groove and in the presence of bony plates along dorsal and 

 anal. (A diminutive of Zeus, evg, the John Dory.) 



2077. ZEMOX HOLOLEPIS (Goode & Bean). 



Head 2f; depth 24. D. VI or VII, 26; A. 23; V. I, 6; P. 16. Eye very 

 large, 4| in body or nearly 2 in head ; interorbital width 2. Premaxil- 

 laries protractile and, when drawn out, a deep horseshoe-shaped groove 

 is exposed between the orbits; premaxillary 2 in head without snout; 

 maxillary thin, broad, obtuse at the extremity, its length equaling that 

 of interorbital area; length of mandible nearly \ that of head; mouth 

 almost vertical when closed. Quadrate bone ending posteriorly in a 

 broad, obtuse spine, and with several ridges with minute cirri; supra- 

 orbital also with several minutely cirrated ridges. Teeth in jaws indis- 

 tinguishable, except to the touch. Nostrils placed close to front of eye 

 somewhat above its middle, the posterior, which is much the larger, a 

 pear-shaped slit about 3 times as long as anterior. Pseudobraiichiie well 

 developed; 14 or 15 very small lanceolate gill rakers below the angle. 

 Gill openings very wide, the membranes very deeply cleft and only nar- 

 rowly attached to the isthmus in front. Branchiostegals 8. Dorsal and 

 ventral origins in the same vertical ; distance of the spinous dorsal from 

 snout equaling greatest height of body; spiuous dorsal of 6 or 7 spines, 

 the first of which is minute, about f as long as second, which is as long 

 as eye; second spine finely serrated in the middle of its anterior margin 

 and dilated at the root so as to partly conceal base of third spine; rays 

 of soft dorsal increasing in si/e backward, the first being only \ as long 

 as last, which is about f as long as head, the longest rays about the 

 nineteenth to the twenty-fourth, these are slightly longer than the 

 last; caudal almost truncate or very slightly rounded when expanded, 



