Jordan and Evermann. Fishes of North America. 63 



iiiterorbital width 3 in snout; spiracle with 2 folds. Body covered with 

 uniform shagreen; small spines on orbital ridges; a row of small spines 

 on back, a pair on each shoulder ; dorsal fins similar. Light olivaceous 

 brown, unspotted, the usual pale areas on snout. Panama and vicinity, 

 not rare. (AeuKof, white; jJuy^of, snout.) 



'lK-i'rhi/ii'.-hti*, GrNTHER, Proc. Zool. Soc. Lond., 604,1866, Panama. 

 Rhinobatus Icuwriujnchiis, GARMAN, Proc. U.S. Nat. Mus., 1880, 517. 



84. RHINOBATUS PRODUCT.US, Ayres. 

 (GUITAR FISH.) 



Snout rather long, rounded at the tip; rostral ridges armed with small 

 spines above and confluent about i their length ; spiracle with 2 folds ; 

 moderate, hooked spines along middle line of back; smaller spines on 

 shoulder and around eye; females with a small digitate flap, free behind, 

 above tip of snout. Color dull grayish, unspotted, a black blotch below 

 snout. San Francisco to San Diego, common southward, (productus, 

 produced.) 



Wtinolxitux p>r,,1nctns, AYRES MS., GIRARD, Proc. Ac. Nat. Sci. Phila., 1854, 196, Monterey. 

 RIiiix>l>(n*i>i-<ln<-t<,* t GARMAN, Proc. U. S. Nat. Mus., 1880, 517. 

 Rhinvbatus productus, JORDAN & GILBERT, Synopsis, 876, 1883. 



85. RHINOBATUS PERCELLENS, (Walbaum). 

 (FIDDLER FISH; PURA'QUE.) 



Rostral cartilages very narrow, confluent more than i their length; 

 snout long and narrow, about 4- times interorbital width; eye moderate ; 

 spiracles with 2 tubercles on hinder margin. Mouth nearly straight. 

 Skin covered above and below with shagreen ; a vertebral series of small 

 spines; a row of several near the middle of shoulder girdle on each side, 

 none on snout. Olivaceous, with a few round white spots on middle of 

 disk ; snout with translucent spaces ; adult sometimes unspotted. West 

 Indies to southern Brazil, generally common southward, north to Jamaica 

 (Cockerell). (percellens, smiting.) 



Raja percelleits, WALBAUM, Artedi Piscium, 525, 1792 (after Puraque of Marcgrave, 151). 

 Rhinobatus electricus, BLOCH & SCHNEIDER, Syst. Ichth., 356, 1801, Brazil, based on Puraque of 



Marcgrave. 



Rhinobafus undulatu*, OLFERS, Torpedo, 22, 1831, Brazil. 

 RlunobutHs inulttlttns, Gf'NTHEit, Cat., VIII, 444, 1870. 

 Rhinobatus glaucostic/iix, OiFEBS, I. c., 1831, Brazil. 

 Rhinobatus marcgrai-ii, HENLE, Ueber Narcine, 34, 1834, Brazil. 



86. RHINOBATUS SPINOSUS, GUnthcr. 



Snout much produced, the rostral ridges very narrow, largely confluent, 

 with a very small, short groove at base, their whole length armed with 

 spines ; mouth nearly straight ; compressed spines dilated at base along 

 median line of back, on shoulder, and above eye and spiracle. Color plain. 

 Mexico (probably the east coast). (Giinther.) (spinosus, spiny.) 



Rhinobaltis spinosus, GONTHER, Cat., vm, 518, 1870, Mexico ; not recorded by any other author. 



