580 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



Tliis species is uot rare at Mazatlan, where it is known as Baia. It 

 is also occasionally taken at Panama. 



Three females and one male specimen, from 12 to 16 inches in length, 

 were brought from Mazatlan, and one young male from Panama. 



Specimens in United States National Museum. 



28204. Mazatlan, Gilbert. 

 29524. " " 



29542. " " 



29580. " " 



29318. Panama, " 



The species of Urolophus thus far known from the Pacitic coast of 

 tropical America may be distinguished by the following analysis: 



a. Anterior margins of disk nearly straight ; insertion of caudal spine in front of the 



middle of the tail; the spine longer than snout. 



h. Disk everywhere perfectly smooth; no spines or prickles ; disk broader tlian 



long, considerably longer than tail, teeth obtuse in both sexes; length of 



snout less than one-fourth disk; brown above, with many yellowish 



spots HALLEKI * 



66. Disk smooth, or with a few minute prickles ; upper part of tail with a few {'Z 

 to 8) large buckler-like spines on the median line; disk slightly longer than 

 broad, slightly shorter than tail; teeth in malesacute; lengthof snout, about 

 one-third disk ; brown above, nearly plain aspidurus t 



666. Disk covered with small stellate prickles ; a series of small spines along 

 median lino from shoulder to caudal spine; disk a little broader than long, 

 as long as tail; length of snout, about one-fourth disk; teeth iu males acute; 



brown above, nearly plain asterias 



aa. Anterior margins of disk convex; insertion of caudal spine iu front of middle of 

 tail ; the spine not longer than snout ; tail rather longer than body ; teeth 

 sharp in both sexes; skin beset with stellate tubercles mundusI 



IVOTES OIV A COf.IiECTIOIV OF FI!4IIE:8 FRO.U t^HARI.KSTO-V, .SOITTH 

 CAKOIillVA, WITH DEMCKIPTIO.'V.'i) OF THRBE I\EW iSiPKCIEM. 



By DAVIO S. JORDA.^ A^D CIIAKILES 31. GILBERT. 



Four weeks during the UK^nlhs of -htly and August, 188'-', were spent 

 by Mr. Gilbert in collecting and studying the tishes of Charleston and 

 vicinity in the interests of the United States National Museum. One 

 hundred and twcntj-three species of marine tishes were observed; of 

 these twenty one had not been previously recorded froiu our South At- 

 lantic coast, nineteen being additions from the West Indies and the 

 Gulf of Mexico. 



* Urolophus lialleri. Cooper, Proc. Cal. Acad. Nat. Sci., 1863, III, 95. Point Concepcion 

 to Panama (Santa Barbara, San Pedro, San Diego, Mazatlan, Panama.) 



t UrolopluiH aspidnnis Jor. & Gilb., Bull. U. S. Fish Com., 1881, :)07. Panama. 



t Urotrygo)) muiulus Gill. Proc. Acad. Nat. Sci., Phila., 1863, 173. Panama. (Dow 

 collection; the type now lost.) 



