Jordan and Evermann, — Fishes of North America. 441 



aaan. Anal rays about 30, (25 to 36). 



t. Silvery lateral band diffuse or obsolete ; body much compreBsed ; eye 3 to 3J^ iu head. 

 I. Gill rakers shorter than eye ; lateral band narrow. 



m. Belly slightly serrulate ; gill rakers % eye ; scales caducous; anal rays 25 or 26. 



MITCHILLI, 731. 

 mm. Belly not serrulate ; Rill rakers half eye ; scales not caducous; anal rays 27. 



LuciDUs, 732. 

 ;;. Gill rakers long und slenilor, longer than eye ; belly trenchant, not serrate ; scales 

 40 ; lateral band broad and diffuse or obsolete ; snout much projecting, 

 n. Snout moderately pointed ; minute teeth in both jaws ; lateral band diffuse. 



CLUPPMIDE.S, 733. 

 nil. Snout pointed ; minute teeth in upper jaw only ; lateral baud obsolete. 



PKODUCTUS, 734. 

 H-. Silvery lateral band well defined ; snout short, little projecting. 



0. Maxillary reaching little behind root of mandible ; scales 40 ; silvery lateral band 

 as broad as eye ; gill rakers nearly as long as eye ; anal rays 31. 



COMPRESSUS, 735. 



00. Maxillary reaching gill opening ; scales 35 ; lateral band silver gray ; anal rays 



31 to 36. PANAMEN8IS, 736. 



aaaaa. Anal fin extremely long, its rays 37 or 38. 



^. Lateral band ill defined or obsolete ; snout pointed, much projecting ; insertion of 

 dorsal nearer snout than base of caudal ; subopercle with a flat triangular 

 prominence. spinifer, 737. 



717. STOLEPHORUS MI-iRCHUS, Jordan k Gilbert. 

 Head 4| ; depth 6. D. 11 to 13 ; A. 12 to U. Very slender, little com- 

 pressed, the belly not trenchant; snout subconical, projecting. Teeth 

 evident in both jaws ; maxillary short, reaching edge of preopercle. Eye 

 not very large. Insertion of dorsal midway between snout and caudal ; 

 anal very short, its first ray under last of dorsal. Scales caducous. 

 Perfectly transparent in life, with some black dots; a diffuse lateral 

 silvery shade, but no stripe. Length 2 inches. Mazatlan to Panama; 

 abundant. At Mazatlan it is not taken in the Estuary with other Stole- 

 l)hori, but is taken with dynamite in deep water, where it swims near the 

 surface. It is probable that the types are immature and are possibly the 

 young of S. exigiiiis. Very young specimens taken at Key West and called 

 the same by Jordan, are not this species ; they are either new or the 

 ■young of Stolephorus 2}erfasciatus. {/lecbo), to reduce; apxoc, anus.) 



Slolephoriis miarchm, Jordan & Gilbert, Proc. U. S. Nat. Mus., 1881, 344, Mazatlan. (Type, 

 No. 28119. Coll. Gilbert.) Jordan & Gilbert, Proc. U. S. Nat. Mus., 1882, 622. 



718. STOLEPHORUS PERFASCIATUS (Poey). 



Head 4i; depth 6; eye 3^. D. 12; A. 14 to 16. Body rather elongate; 

 snout compressed and pointed, shorter than eye. Top of head with a 

 slight keel. Maxillary and lower jaw finely toothed ; maxillary unusually 

 short, its posterior end rounded, not extending quite to margin of pre- 

 opercle ; gill rakers numerous ; pectoral If in head, not reaching ventrals ; 

 insertion of anal below last rays of dorsal, the fin short ; origin of dorsal 

 midway between root of caudal and pupil. Color of S. brownii, the lateral 

 band rather narrower, well defined, its width about f eye ; no dark punc- 

 tulations except on base of caudal and sometimes on anal. Length 2 to 

 3 inches. Florida Keys to Cuba ; common, but much less abundant than 

 Stolephorus hrotvnii. {perfaaciatus, well-banded.) 



