GENUS ENTOMACRODUS — SPRESTGER 



39 



anteriorly on the sides. Specimens from the other locahties have 

 numerous dark spots in that region. 



The upper Hp varies from imiformly dusky to having three broad, 

 dark bands separated by pale interspaces. 



At least the soft portion of the dorsal fin, and sometimes the caudal 

 fin, bear a number of discrete dark pinstripes and dashes in specimens 

 from the New Hebrides, Tau, Tutuila, Samoa, Tongatapu, and 

 Niuafou Islands (the latter five islands are closely associated geo- 

 graphically). Specimens examined from the other localities have the 

 dorsal and caudal fins marked with diffuse dark spots which may or 

 may not appear as enlargements of portions of what might have been 

 a basic pinstripe pattern. The spots are usually restricted to posi- 

 tions over the rays while the pinstripes and dashes are continuous 



TABLE 8. — Frequency distribution of number of pseudobranchial filaments 

 of specimens of Entomacrodus decussatus arranged by SL classes (in mm) 



Classes 



7 8 



Pseudobranchial filaments 

 9 10 11 12 13 U 



15 16 



17 



15-19,9 



20 



25 



30 



35 



AO 



45 



50 



55 



60 



65 



70 



75 



80 



85 



90 



95 



100-109.9 



110 



120 



130 



UO 



150 



12--- -------- 



l----_---___ 



1-51-------- 



142-------- 



133-------- 



1521------ 



1222------ 



- 2543----- 



2421---- 

 12132---- 



- 222321--- 



lll_--__ 

 ----- 2 - 3 1 



1 1 - - _ - _ 

 2 1 - - - - 



1-221--1- 

 1--12-1-11 



