436 Bulletin 47, United States National Museum. 



very slightly so posteriorly. Insertion of dorsal midway between end 

 of snout and root of caudal. Base of anal 3| in length ; ventrals longer 

 than eye. Coast of Surinam and Brazil. (Giinther.) (flavus, yellow; 

 pinna, fin.) 



Pristigaster .flavipinnis, VALENCIENNES, in D'Orbigny, Voy. Amer. Mer., Poiss., pi. x, fig. 2, 1839, 

 Buenos Ayres. 



Pellona orbignyana, CUVIER & VALENCIENNES, Hist. Nat. Poiss., xx, 302, 1847; same type. 



? Pellona castelnseana, CDVIEK & VALENCIENNES, Hist, Nat. Poiss., xx, 306, 1847, Mouth of Ama- 

 zon; (D. 19; A. 36 to 38). 



Pellona flavipinnis, GUNTHER, Cat., vn, 454, 1868. 



708. 1LISHA BLEEKEKIANA (Poey). 

 (ANCHOA PELADA.) 



Depth 5f in length with caudal ; eye 3$. D. 15 ; A. 43; scutes 25. Ven- 

 tral line strongly curved. Mouth wide, oblique. Anal placed behind 

 dorsal ; length of anal equal to its distance from posterior border of eye. 

 Scales very caducous. Silvery. Matanzas, Cuba; rare. (Poey.) Per- 

 haps not distinct from I. flavipinnis. (Named for Dr. Pieter van Bleeker, 

 surgeon in the Dutch Indies, the most indefatigable worker who has yet 

 appeared in ichthyology ; author of very many papers on East Indian 

 fishes.) 



Pellona Ueekeriana, POEY, Bepertorio, 11, 242, 1867, Matanzas. 



709. ILISHA PANAMENSIS (Steindachner). 



Head 3f; depth 3fc to 3| ; eye 3| to 3|. D. 16; A. 50; scales 58-21; 

 scutes 22+ 12. Ventral line very weakly curved. Mouth very oblique. 

 First ray of anal under last of dorsal, which is f of the eye's diameter 

 nearer snout than base of caudal. Silvery, with yellowish fins. Length 

 16 inches. Panama; not rare. 



Pellona panamensis, STEINDACHNER, Ichth. Beitr., i, 14, 1874, Panama. 

 710. ILISHA FURTHI (Steindachner). 



Head 3 to 4; depth 2f to 2f; eye 3 to 3|. D. 16; A. 50; Scales 55: 

 scutes 23 + 12. Ventral line very strongly curved. Mouth very oblique. 

 First 5 to 7 rays of anal below dorsal, which is inserted an eye's diameter 

 nearer snout than base of caudal. Silvery, fins yellow, more or less 

 punctate. Length a foot. Panama; not rare. (Named for Ignatius Fiirth, 

 Austrian Consul at Panama.) 

 Pellona furtU, STEINDACHNER, Icth. Beitr., i, 14, 1874, Panama. 



215. OPISTHOPTERUS, Gill. 



Opisthopterus, GILL, Proc. Ac. Nat. Sci. Phila., 1861, 31, (tartoor). 



Body elongate, very much compressed, with the abdomen prominent 

 and strongly serrated. Scales thin, deciduous, of moderate size. Lower 

 jaw projecting ; maxillary not produced ; teeth rather small, in villiform 

 bands on both jaws, palatines, pterygoids, and tongue; vomer tooth- 

 less. Dorsal fin small, inserted considerably behind middle of body; 

 behind front of anal; anal fin very long; ventrals wanting; caudal 



