434 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [92] 



longueur de la t6te. Bouche placee sous le museau, l'extreinite du max- 

 illaire ne d^passant pas verticalement le bord posterieur de l'orbite. 

 Quatre pores sous la nmchoire inierieure; entre les deux premiers on 

 apercoit un petit barbillon multifide touchant a la symphyse, et il y en 

 a dix d'une grande termite places sur chacune des branches de la ma- 

 choire inferieure. Preopercule arrondi; une cre'nelure meinbraneuse 

 existe sur son bord posterieur. Ligne laterale inflechie au-dessus de 

 l'anale. Pectorales tres developpees. Dorsale profon dement 6chancree 

 et a rayons epineux faibles ; le premier, ties court, prend naissance au- 

 dessus de l'origine des pectorales; le quatrieme, le plus long, 6gale la 

 largeur de Fespace interorbitaire. Ventrales attachees au meme niveau 

 que les precedentes. Anale petite, et a cpines inediocres. Caudale 

 poiutue, sa longueur 6gale celle de la tete. Anus pins eloigne, de l'ex- 

 tremite de la queue que du bout du museau. Yessie a^rienne dpaisse, 

 argeutee et prolougee en une pointe tres deltee. Ecailles cycloides. 



"Un seal exemplaire a etc" rapporte de La Union, Eepublique du Sal- 

 vador. 



" Longueur totale, m 256." 



Genus XXIIL— LONCHURUS. 



Lonchurus Blooh, Syst. Ichth., plate 360, 1793 (barbatus — lanceolatus). 



Type : Lonchurus barbatus Bloch. 



This genus contains apparently but a single species, a rather rare in- 

 habitant of the Caribbean waters. This species we have not been able 

 to examine. ^ 



The genus seems to be one of the most remarkable of the family. Ex- 

 cept its analogue, Paralonchurus, it seems to have no very near rela- 

 tives. 



ANALYSIS OF SPECIES OF LONCHURUS. 



a. [Body long and low ; the profile straightish, depressed over the eyes ; interorbital 

 area as broad as eye, which is as long as snout ; snout small. 10 in head ; snont 

 soft, depressed, with conspicuous pore at tip; mouth oblique, subinferior; maxil- 

 lary reaching a little beyond eye ; teeth in fine bands; barbels 2, not longer than 

 eye ; preoporcle with crenulate, membranaceous margin ; upper ray of pectoral 

 much elongate, ~>i in body; caudal elongate lanceolate, 4 in body ; first ray of 

 ventral reaching front of anal; anal short and high, its spines weak, inserted 

 before middle of soft dorsal; scales mostly cycloid ; lateral line becoming straight 

 above anal; color brownish; pectoral and caudal tins black, other fins dusky. 

 Depth 4 in length. D. X orXI-I, 33 to 40 ; A. II, 7 or 8 ; lateral line GO to 70.] 

 ( Cuvier cj- Valenciennes. ) Lanceolatus, 106. 



106. LONCHURUS LANCEOLATUS. 



Perca lanceolata Bloch, Nov. Act. Sc. Copenh., iii, 383. 



Lonchurus lanceolatus Giinther, Cat. Fish. Brit. Mus., ii, 317, 1860 (copied). 



Lonchurus barbatus Bloch, Ichthyol., plate 360, 17'J3. Bloch & Schneider, Syst. 

 Ichthyol., 102, 1801 (Surinam). Cuv. &Val., Hist. Nat. Poiss.,v, 193, 1830 (de- 

 scribed from Bloch's type). 



