1904.] NATURAL SCIENCES OF PHILADELPHIA. 225 



HOLOCENTHRUS Scopoli. 

 The original orthography, though erroneous, cannot altogether be 

 considered an unintentional misprint, as its occurrence is but twice in 

 the entire work and in each case it is spelled exactly as above. 



Subgenus HOLOCENTHRUS Scopoli. 

 ]\largin of opercle finely serrated. 

 Holocentlirus adscensionis (Osbeck). 



Perca adscensionis Osbeck, Reis, Ostind. Chin., 1765, p. 388. Ascen- 

 sionsinsul. 



An adult example from Rio Janeiro, Brazil, agrees with others from 

 the Bahamas. In former preopercular spine reaches a trifle beyond 

 gill-opening, and its upper free margin is about equal to half of orbit. 

 Pectoral If in head, from tip of snout to tip of opercular spine. Third 

 anal spine, from scales, 2^-^. Soft dorsal 1^. Ventrals falling well 

 short of vent. Length \1\ inches. 



Three smaller examples from San Domingo differ in a larger eye, 

 longer pointed fins, and long opercular spine reaching base of pectoral. 

 They also have a more slender caudal peduncle. Prof. W. M. Gabb 

 collection. 



The form called riifus by Drs. Jordan and Evermann is evidently 

 the same. 



Mr. W. J. Fox has called attention^ to the original spelling of the 



specific name of this species which has been ignored b}^ writers. 



Holocentlirus xantherythrus (Jordan and Evermann). 



Holocentrus xantherythrus Jordan and Evermann, Bull. U. S. Fish Comm., 

 1902 (1903), p. 175. Honolulu. Kailua. 



Co-type of Holocentrus xantherythrus Jordan and Evermann. 



Holocenthrus gladispinis sp. nov. Fig. l. 



Holocentrus diploxiphns Fowler, Proc. Acad. Nat. Sci. Phila., 1900, p. 520. 

 Tahiti. (Dr. J. K. Townsend.) (Not of Gunther.) 



Head 3; depth 3; D. XI, 13; A. IV, 9; P. I, 14; V. I, 7; scales 44 

 in lateral line to base of caudal, and 4 more on latter; 3^ scales obhquely 

 back from origin of spinous dorsal to lateral line, and 3 in vertical 

 series between last dorsal spine and lateral line; 7 scales obhquely 

 back from lateral line to middle of belly; width of head 2 in its 

 length; depth of head at posterior margin of orbit 1^; snout 4f ; orbit 

 2fV; maxillary 2f'-o ; mandible 2y^-; interorbital space 3^; first dorsal 

 spine 3^; third 2; second dorsal ray 2; third anal spine If; second 

 anal ray 2; least depth of caudal peduncle 3f ; upper caudal lobe 

 1^; pectoral 1^; ventral If. 



« Science, 1900, p. 717. 

 15 



