FILEFISHES ( MONACANTHIDAE ) OF THE WESTERN NORTH ATLANTIC 



77 



ANQLt Of SILL OPENlNC 



Sfephanolepis 



Stephanolepis 

 hispidus 



"LINE OF ARTICULATION 



Amanses 

 pullus 



LINE OF FUSION 



^Sa Alutera 

 <;#\ heudelotii 



A heudelotit 



37inm 5 L. 



Figure 4. — Outlines of Stephanolepis, Amanses, and 

 Alutera, illustrating location of the pelvic spine, posi- 

 tional relation of the first dorsal spine to the eye, and 

 angle of the gill opening to the horizontal body axis. 



Figure 5. — Pelvic spines: Stephanolepis hispidus, 38 mm. 

 S.L.; Amanses pullus, 36.5 mm. S.L.; and Alutera 

 heudelotii, 37 mm. S.L. The ratio of magnification of the 

 drawings is 1.0, 1.33, and 4.0. 



