Number 92 January 21, 192 1 



OCCASIONAL PAPERS OF THE MUSEUM OF 

 ZOOLOGY 



UNIVERSITY OF MICHIGAN 



Ann Arbor, Michigan Published by the University 



DESCRIPTION OF A NEW SCIAENOID FISH FROM 

 SANTA CATALINA ISLAND, CALIFORNIA 



By Carl L. Hubbs 

 Sciae.na thompsoni, new species 



Relationships: This new species is intermediate between the 

 groups called Ophioscion and Sciaena. It appears to be most 

 similar to three Panamaic species, simula, sclera, and vermicularis. 

 From Simula it differs in the weaker armature of the preopercle, 

 the stronger canines, the shorter pectoral, the slightly fewer 

 dorsal rays, the shorter second anal spine, the sharper predorsal 

 ridge, the longer caudal peduncle, the longer anal base, the less 

 curved ventral contour, the shorter interspace between anus and 

 anal fin (5.25 instead of 2.1 in head), the flat preorbital, etc. 

 It differs from sciera in the longer caudal peduncle (1.05 instead 

 of 1.3 in head), the weaker and much more numerous serrations 

 on the preopercular margin, the shorter pectoral (1.8 rather than 

 1.2 to 1.5 in head), the less robust and shorter anal spine (2.5, 

 not 1.9 in head), the very short pelvic filament, the more slender 

 body (depth 3.52 instead of 3 . o to 3 . ^t,), the less strongly elevated 



