102 CALIFORNIA ACADEMY OF SCIENCES 



The temporal ridges do not join the median frontal ridge, though they are continued 

 well forward and approach it. 



In this pai)er we have used the oldest name, Lutlanus, for all American 

 species. 



184. Lutianus jordani {Gilbert). 



Plate XIV, Fig. 29. 

 JVeomam's Jordani Gilbert (Jordan & Evermann, 1898, p. 1251). 



Head 2| to 3 in length; depth 2| to 2f ; eye 4^ in head; dorsal X, 14; anal III, 9; scales 54 

 above lateral line, 43 to 47 oblique series running downwards and backwards. 



Body deep, with regular curves, the two profiles nearly equal. Snout short, with gently 

 rising up[jer profile, 3^f to 3-J in head. Eye large, its diameter much greater than the width of the 

 preorbital at middle of length, where it is one-seventh length of head. Maxillary reaching slightly beyond 

 front of pupil, its length equaling that of snout and half eye, 2| in head. Least width of preorbital half 

 the diameter of the eye. Temporal ridge ceasing about middle of orbit, much nearer orbital rim than 

 median crest, but not confluent with either. Mandibular teeth in a vllliforni band, which is of moderate 

 width anteriorly and tapers rapidly on sides. An outer series of distantly placed moderate canines. 

 Teeth in premaxillaries similar to those below, the canines small, a pair on each side enlarged, but 

 small for this genus. Vomerine teeth in a kite-shaped tract, rapidly reaching its greatest width, then 

 tapering slowly backward for twice the distance. The anterior margins are gently concave, the 

 posterior deeply so. Preopercular margin with a rather deep emargination above the angle. The 

 interopercle forms a slight protuberance opposite the preopercular notch, the prominence failing to fill 

 the notch, as it does in viridis and other species of the " Geiiyoroge " group. Above the emargination, 

 the edge is very minutely and finely serrulate, at the angle provided with a few short slender rather 

 distant teeth. Gill-rakers strong, those above angle short, all but one tubercular, the one at angle 

 abruptly lengthened, about half diameter of eye; seven developed on horizontal limb of arch. Posterior 

 nostril elliptical. 



Five or six series of scales on cheeks, the band running upward to level of upper margin of 

 orbit. A single narrow band of scales on occiput, separated by a naked space from those on nape. 

 Top of head, snout, mandible, preopercle, maxillary, and inferior half of interopercle naked. Scales 

 above lateral line in series parallel with the lateral line; those below lateral line in horizontal series. 

 Scales on the breast not much reduced, as large as those on opercle. Basal half of dorsal and anal 

 with series of scales which form a sheath at base; basal three-fourths of caudal densely scaled. 



Dorsal spines heavy, not flexible, the fourth the longest, 2i to 2| in head. Second and third 

 anal spines about equal, half the length of snout and eye. Soft dorsal and anal low, rounded, the 

 longest ray (measured from free edge of sheath) about one-third head. Caudal lunate, the middle 

 rays three-fourths the outer, i| in head. Pectorals very long, nearly reaching vertical from vent, 

 1 1 in head. Ventrals i| in head. 



Color: Back and top of head deep olive; lower half of sides and below dark reddish-purple. 

 Many of the scales on sides with a silvery spot near the margin, producing faint lengthwise stripes. 

 Fins reddish-purple, the basal portions of soft dorsal and caudal tinged with olive. Iris silvery, with 

 an inner and an outer orange circle. No blue lines on the head. Inner lining of gill-membranes and 

 the shoulder girdle largely orange-red. Pectoral fins orange-brown. 



Of rare occurrence at Panama, but occasionally taken in considerable num- 

 bers. It is a small species, reaching a length of about 40 cm. 



185. Lutianus novemfasciatus QUI. 

 Occasional; reaching a large size. 



