COPEIA 47 



e. Gill rakers few and small ; ( about 6 ) , profile 

 before dorsal S-shaped; scales rather small; 

 tongue with small teeth (type Apogon aprion 

 Richardson) ; glossamia Gill. 



ee. Gill rakers numerous, slender (12 to 14) ; 

 profile nearly even from snout to dorsal. 



f. Scales small (about 45) ; (type Glossamia 

 pandionis Goode & Bean) ; xystramia 

 Jordan. 



ff. Scales large, about 25 (type Apogonichthys 

 perdix Bleeker) ; apogonichthys Bleeker. 



cc. Lateral line incomplete; scales large; caudal 

 rounded; (type Fotvleria brachy gramma 

 Jenkins) ; foa Jordan & Evermann. 



bb. Palatines without teeth; scales large; caudal 

 rounded; gill rakers few, short; opercle with 

 a large black spot; (type Apogon auritus 

 Cuv. & Val.) ; fowleria Jordan & Ever- 

 mann. 



One of the species hitherto referred to Amia or 

 Apogon, Apogon fuscus Quoy & Gaimard from 

 Guam and Samoa, differs from the type of the genus 

 in the long and rounded caudal fin, attached to a long 

 caudal peduncle as long as head. It has large scales 

 and six dorsal spines. It may be regarded as the type 

 of a distinct genus, nectamia Jordan, allied to 

 Apogonichthys. In Apogon (Amia) proper and in 

 the subgenus Ostorhynckus (seven dorsal spines) the 

 caudal fin is forked or at least lunate. The Japanese 

 species, niger marginatus, unicolor and lineatus have 

 the caudal subtruncate, but in other regards these 

 more nearly resemble Apogon, the caudal being short, 

 its peduncle much shorter than head. 



Apogon evermanni Jordan and Snyder from 

 Hawaii with very small scales (54) forked caudal 

 and six dorsal spines should be placed in the genus 

 Lepidamia Gill, type Apogon halosoma Bleeker. 



David Starr Jordan, 

 Stanford University, Cal. 



