900 Bulletin 4y, United States National Museum. 



412. NAUCRATES, Rafiuesque. 



(PlLOT-l'ISIIES.) 



CenhojiOtHS, Lac£p£de, H'st. Nat. Poiss., 111, 311, 1802, (i;i>ndv.t:ior)\ not 'V»(ro»(y(Ms of ISloch k 



SciiNKiiiEK, 1801, which is Pliolis. 

 Naiicralcs^ IvAiiNKSiii'K, Caratteri di Alcuni Nuovi Generi, &c., 1810, 41, {toiidudor). 

 Pumphihis, Minding, Lflirb. Nat. Fische, 108, 1832, (duclor). 



Naudenis, CuviER & Valenciennes, Hist. Nat. Poiss., 247, 1833, (aompresxus ; yuuug). 

 Xi/slvxjhonis, KlcHARDSON, Voyage Erebus and Terror, 52, 1844 ; very young. 



This geuus difters from Scriola only iu the reduction of the spinous 

 dorsal to a few (4 or 5) low, unconnected spines. The young, called 

 I\auderus and Xystophorns, have the spines of the dorsals connected by 

 membrane, and a more or less distinct strong spine at the angle of the 

 operculum. A single pelagic species widely distributed in the open seas. 

 {vavKpar?]^, ruler of the ships, i. e., holding ships fast— a name applied by 

 the ancients to Echciuin and other fishes.) 



1287. NAUCRATES DUCTOB, Liunseus. 

 (Pilot-fish ; Romero.) 



Head 4; depth 4. D. IV-I, 26; A. II-I, 16. Body rather elongate, 



little compressed. Snout rather blunt; mouth terminal, oblique, small ; 



maxillary scarcely reaching orbit. Caudal keel large, fleshy ; pectorals 



short and broad; ventrals rather large. Bluish, with 5 to 7 liroad dark 



vertical bars, extending on the fins. Length 2 feet. A pelagic fish found 



in all warm seas ; occasional on our Atlantic Coast from Cape Cod to the 



West Indies; not common in markets or in collections, (dnctor, leader.) 



(Eu.) 



Gasterosleus duclor, Linn.eus, Syst. Nat., Ed. x, 295, 1758, "inTelago." 



Afaucrate (hictor, GiiNTHER, Cat., II, 374, 1860 : Jordan & Gjlisert, Synopsis, 443, 1883; Gill, 



Proc. U. S. Nat. Mus., 1882,490. 

 Gasterosteiis antecessor, Paldokf, Skriv. Nat. Selsliab. Kjob., 11, 166, 1800. 

 Scomber loirexderi. Block & Schneidkr, Syst. Ichth., 570, 1801. 

 Cenlronolus conductor, Lacepede, Hist. Nat. Poiss., iii, 311, 1802, no locality. 

 Naucrales fnnfarus, Rafinesqub, Caratteri, 1810, 45, Sicily. 

 NaucnUes indicus, Lesson, Voy. Coquillo, 157, 1829, India. 



Naucrales 7iovehoracensis, Cuvier & Valenciennes, Hist. Nat. Poiss., viii, 325, IMil, New York. 

 Seriola dussumieri, Cuvikr ife Valenciennes, I. c, ix, 217, 1833, Gulf of Bengal. 

 Seriohi succincta, CuviER & Valenciennes, I. c,, ix, 218, 1833, south of St. Helena. 

 Nauclerus compressus, Cuvier & Valenciennes, I. c, ix, 249, 1833, Molucca. 

 Nauclerus abbreviutus, Cuvier & Valenciennes, I. c, ix, 251, 1833, Atlantic Ocean. 

 Nauclenis brachycenlrus, Cuvier & Valencienne.s, I. c, ix, 253, 183-5, Indian Ocean. 

 Nauclerus triacanthus, Cuvier & Valenciennes, I. c., ix, 253, 1833, Atlantic Ocean. 

 Nauclerus annularis, Cuvier & A'alenciennes, I. <■., ix, 254, 1833, south of St. Helena. 

 Nauclerus leucurus, Cuvier it Valenciennes, /. <-., ix, 2'i5, 1833, south of St. Helena. 

 Naucrales cijanoplmjs, Swainson, Classu. Fishes, 11, 412, 1839, Palermo. 

 Naucrales serralus, SwAiNSON, I. c, 413, 1839, Palermo. 

 Thiinnus jtompihis, Gronow, Cat. Fisht's, 123, 1851, Palermo. 

 Xynlvphorus, Richardson, A^oy. Erebus and Terror, 52, 1844, Palermo. 



