SHORE FISHES OF GALAPAGOS ISLANDS 



409 



Family MONOCANTHID^. 



142. CANTHERINES SANDWICHIENSIS ( Quoy & Gaimard). 



Balistes sandwicJiiensis QuoY & Gaimard, Voyage Uranie, Zool., 214, 1824. 

 Cant/wrines nasutus Swaixson, Fishes, Amphibians and Reptiles, 11, 327, 



1839. 

 Monocanthus pardalis, in part, Gunther, Cat., vili, 230, 1870. 

 Cantherines carola Jordan «& McGregor, Rep. U. S. Fish Comm. for 1898 



(1899), 281, Socorro Island. — Jordan & Evermann, Fishes North and 

 Mid. Amer., 11, 1713, 1898. 



Range. — Polynesia, Hawaiian Islands, Revillagigedo Islands. 



There is i specimen of this species in the Stanford University 

 collection, taken by Mr. R. C. McGregor at Socorro Island. It is the 

 type of Cant her ifzes carolce of Jordan and McGregor. We have 

 compared this Revillagigedo specimen with i adult and several young 

 of C. sandzvichiensis from the Hawaiian Islands, and we find no speci- 

 fic character separating it from the latter species. 



MEASUREMENTS AND FIN RAYS OF Cantheriues sandivichiensis . 



Locality. 



Length in mm 



Depth 



Head 



Eye 



Dorsal spine 



Longest soft dorsal raj. 



Longest anal raj 



Median caudal rajs 



Pectoral , 



Number of dorsal rajs. 

 Number of anal rajs.... 



The discrepancy between the number of fin rays in the Revillagigedo 

 and Hawaiian specimens shown by the above table has no significance, 

 for the rays of the dorsal fin in the other smaller Hawaiian specimens 

 vary from 33 to 36, All of the young have the posterior rays of the 

 soft dorsal proportionally higher than in the adults. In the young also 

 the teeth are slenderer and more pointed than in the large specimens 

 and the vertical dusky bars, present on the sides of the posterior half 

 of the body in the adults, are entirely lacking. Both of the larger 

 specimens have 2 pairs of anteriorly-curved spines on each side of 

 the caudal peduncle, but no trace of these is present on any of the 

 smaller specimens, which are about 140 mm. long. 



In the Stanford University collection there are 2 small specimens 

 of a Cantherines from Jamaica labelled C. pullus. These specimens 

 are of the same size as the small Hawaiian specimens, and they differ 



