18 BULLETIN 189, UNITED STATES NATIONAL MUSEUM 



■pj>' . Teeth in jaws separate and dis- 

 tinct. 

 q' . Teeth on anterior part of jaws at 

 least compressed, more or less 

 incisorlike, sometimes notched; 

 no molars. 

 r'. Dorsal fin long, continuous, 

 the spines becoming pro- 

 gressively longer, or at least 

 not decreasing notably in 

 length, with about 10 to 15 

 spines and 15 to 18 soft 

 rays-.Kyphosidae (p. 315) 

 rr' . Dorsal fin deeply indented or 

 in 2 parts, posterior spines 

 decreasing greatly in length, 

 with about 15 to 17 spines 

 and 18 to 20 soft rays. 

 Aplodactylidae (p. 324) 

 qq' . Teeth in anterior part of jaws 

 not compressed or incisorlike 

 (in Peruvian species); molars 

 present or absent. 

 s'. Several of lower rays of pecto- 

 ral simple, with free tips; 

 dorsal fin single, deeply 

 notched, with about 16 to 

 19 spines and 20 or more 

 soft rays. 



Cheilodactylidae (p. 326) 

 ss' . Lower rays of pectoral not 

 simple or free at tips. 

 t' . Teeth on sides of lower jaw 

 consisting of low blunt 

 molars; maxillary slip- 

 ping under preorbital; 

 preopercle with smooth 

 margin. 



Sparidae (p. 312) 



tV . Teeth on sides of lower jaw 



not molarlike, all more or 



less pointed. 



u'. Maxillary not sheathed 



by preorbital; opercle 



ending in 1 or 2 flat 



spines. 



Serranidae (p. 159) 

 uu' . Maxillary sheathed in 

 large part by the pre- 

 orbital; opercle with- 

 out spines. 

 v' . Teeth in jaws usually 

 unequal, some of 

 them more or less 



