102 CALIFOKNIA ACADEMY OF SCIENCES 



Tlio temporal lidj^Oij do not join tin- inodiaii frontal ritl,u;o, tlu)ii,u;li they are continued 

 woU forward and a|)|)r()ach it. 



In this paper we have useil the oldest name, IaU'kihus, for all AuKrican 

 species. 



184. Lutianus jordani {Gilberl). 



I'LATK XIV, Flli. 20. 



A'eo/ua-nis jofiAiiii GiLKimr QoRi^AN & Evermann, 1898, p. 1251). 



Head 2} to 3 in length; depth 2^ to 2^; eye ^\ in head; dorsal X, 14; anal III, y; scales 5! 

 alx)ve lateral line, 43 to 47 oMiijue series runninij downwards ami backwards. 



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

 rising up|)cr profile, 3J to 3J in head. Eye large, its diameter much greater than the widtli of the 

 preorhital at midille of length, where it is one-seventh length of head. Ma.xillary reaching slightly beyond 

 front of pu])il, its length equaling that of snout and half eye, 2g in head. Least width of preorbital half 

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

 metlian crest, but not confluent with either. Mandibular teeth in a villiform 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-shajied tract, rapidly reaching its greatest width, then 

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

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

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

 the notch, as it does in viridis and other species of the ' ' Genyorogc ' ' 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. 



Fi\e or si.x series of scales on cheeks, the band running upward to level of upper margin of 

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

 Top of head, snout, mandible, preopercle, ma.xillary, 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 tliiid 

 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, \\ in head. Pectorals very long, nearly reaching \ertical from vent, 

 \\ 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, jjroducing faint lengthwise stripes. 

 F"ins reddish-purple, the basal portions of soft dor.sal 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 occurreuce at Panama, but occasionally taken in considerable num- 

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



185. Lutianus novemfasciatus Gill. 

 Occasional; reaching a large size. 



