Jordan and Ever mann. Fishes of North America. 1561 



EUSCHISTODUS (eu, well; <TXWTO<>, split; oSovs, tooth) : 



aa. Preorbital broad, its least breadth not less than diameter of pupil, greater than 

 pupil in the adult; anterior profile of head more or less arched, the snout low 

 and blunt, projecting beyond the small mouth; anal rays II, 10; coloration dull, 

 c. Dorsal spines 13 ; scales 27 or 28. 



d. Color olivaceous with 5 to 7 broad darker bands ; a black spot on base of 



pectoral. DKCLIVIFRONS, 1974. 



dd. Color in adult brownish, witli green dots, not distinctly banded; teeth 



smaller, on each side. ANALOGUS, 1975. 



cc. Dorsal spines 12; body with 5 dark cross bands, fainter than in A. saxatilis; 



scales about 25. TAURUS, 1976. 



TI. Preopercle coarsely serrated; dorsal spines 13; scales very large, 25; body with dark 



cross bands. RUDIS, 1977. 



Subgenus GLYPHISODON, Lacepede. 

 1973. ABTDEFDUF SAXATILIS (Linnaeus). 



(PlNTANO; COW-PlLOT; COCKEYE PILOT; JAQUETA ; MAJARRA RAIADA ; DEMOISELLE; 

 SERGEANT MAJOR.) 



Head 3.1 ; depth If to 2. D. XIII, 12 or 13; A. II, 12 (11 to 13) ; eye 3 in 

 head; snout 4; highest dorsal spine 2; scales 4-28 to 32-12, 21 pores. 

 Body much compressed, back little arched, anterior profile nearly straight, 

 interorbital area slightly convex ; snout not very obtuse, the very narrow 

 preorbital not wide as pupil; mouth moderate, the maxillary reaching to 

 vertical from front of orbit; margin of preopercle and suborbital ring 

 entire ; cheeks and opercles scaly ; eye a little wider than length of snout; 

 snout not very blunt, the preorbital low, 2 in eye; fourth and fifth dorsal 

 spines longest, slightly more than - the length of the head ; from the 

 fifth to last dorsal spine there is :i slight decrease in length; median soft 

 dorsal and anal rays the longest, 1| to 1 in the head ; pectoral fins rather 

 long, about longer than head, reaching to tips of ventrals, which reach 

 front of anal; pectoral about as long as head; second anal spine 1 in 

 head; caudal forked, upper lobe the longer; teeth rather deeply notched. 

 Color in life, bright pale yellowish green ; sides with 5 or 6 deep indigo 

 bands which extend on the dorsal fin and which are rather narrower than 

 the interspaces, the first from the origin of the dorsal to the pectoral fin, 

 the second downward from fourth and fifth dorsal spines, the third from 

 the ninth and tenth dorsal spines toward the vent, the fourth from end of 

 spinous dorsal to middle of anal, the fifth below the end of the soft dorsal 

 and continued on the posterior rays of dorsal and anal; a faint sixth bar 

 at base of caudal; dark fins violet blue; each scale on lower part of body 

 with a pale blue spot, these forming faint longitudinal streaks on lower 

 part of body; some golden on upper part of the body; a black spot at 

 base of pectoral above. Length 6 inches. Tropical America, on both 

 coasts; abundant in tide pools and about coral reefs everywhere from 

 Guaymas to Peru and from Florida to Uruguay. We are unable to dis- 

 tinguish the Pacific form called troschelii from the common saxatilis. Here 

 described from specimens from Mazatlan, Havana, and Socorro Island. 

 (saxatilis, living among rocks.) 

 3030 21 



