200 



HELLER AND SNODGRASS 



MEASUREMENTS OF Azuriiia cufalama. 



Catalogue No. I,eland Stanford Jr. 

 University Museum. 



Length in mm 



Depth 



Head 



Pectoral 



Ventral 



Vertical Diameter of Eye : Head . 



Interorbital : Head 



Preorbital : Head 



Dorsal Spines 



Second Dorsal Rajs 



Second Anal Rajs 



Scale Rows 



12300. 



83 



26 

 29 



22 



18 

 30 

 30 

 10 



XIII 

 II 



12 



32 



80 

 29 



30 

 24 

 18 



33 

 33 

 10 

 XIII 

 II 

 12 

 32 



POMACENTRUS REDEMPTUS sp. nov. 



pi. VI. 



Eitpo7nacentriis rectifrcenum, Jordan & McGregor, Rep. U. S. Fish Com- 

 mission, for 1898, p. 282, 1899 (Clarion and Socorro Islands). 

 Eupomacentrus fiavilatiis, Jordan & McGregor, Rep. U. S. Fish Com- 

 mission for 1898, p. 282, 1899 (Socorro, Clarion and San Benedicto 

 Islands). 



Type. — Cat. No. 6358, Leland Stanford Jr. University Musetim. 

 Clarion Island, Revillagigedo Archipelago. (Collector : R. C. Mc- 

 Gregor.) 



Diagnosis. — Forehead very evenly retreating from snout to front 

 of dorsal ; preopercle narrow, about tw^o thirds of eye in adult ; inter- 

 orbital space about equal to eye ; preopercle more strongly serrated 

 than in P. leucorus ; lips dark ; young with posterior part of the body, 

 caudal peduncle and posterior half of soft dorsal orange ; color other- 

 wise brown, with diffusion of orange posteriorly in adults. 



Description of the Type. — Length no mm. Profile from snout 

 to first dorsal straight, inclined backward at angle of about 45° with 

 longitudinal axis of body. Dorsal spines gradually increasing in 

 length posteriorly. Median rays of soft dorsal longest, reaching a 

 little past base of caudal fin ; last rays very short ; profile of dorsal fin 

 straight and horizontal from fourth spine to longest soft ray, so that 

 both spines and soft rays successively more inclined backward pos- 

 teriorly, the posterior longer ones being no higher than the anterior 

 shorter ones in unelevated fin. Last soft rays horizontal. Anal 

 similar to soft dorsal. Lobes of caudal rounded, upper lobe the larger. 

 Upper rays of pectoral longest. 



Depth two; head a little less than three; D. XII, 15; A. II, 13; 

 eye three and four sevenths in head ; least depth of preorbital one and 

 one half in eye. 



