FISHERY BULLETIN; VOL. 69, NO. I 

 90° 80"" 



Figure 7. — Distribution of larvae of the paralepidids, Macroparalepis macrurus Ege and Sudis atrox Rofen, of 

 Synodus spp., and of the gempylid Nealotus tripes Johnson on EASTROPAC I. Records of occurrence of larvae 

 of Macroparalepis macrurus are shown as an open circle, larvae of Sudis atrox as a diamond, larvae of S^m- 

 odus spp. as a triangle, and larvae of Nealotus tripes as a square; negative hauls are shown as small solid 

 circles. 



13. MYCTOPHIDAE 

 (472 occurrences, 44,913 larvae) 



Myctophids made up 47.2% of the fish larvae 

 taken on EASTROPAC I. Of the 482 oblique 

 hauls taken on EASTROPAC I, 472 contained 

 myctophid larvae. This dominant group oc- 

 curred almost everywhere. However, as is 

 shown in Table 14, larger numbers of myctophid 

 larvae were taken per haul between lat 10° N 

 and 5° S. 



The myctophid fauna is a large one in numbers 



of genera and species represented in the eastern 

 tropical Pacific. This diversity is shown in 

 Table 15, in which occurrence and abundance 

 of myctophid larvae are summarized by genus 

 or species; the number of genera listed is 19. 

 Even so, larvae of Diogenichthys latematus 

 made up over half of the total. 



The study of larval myctophids is aided by 

 the diversity of larval morphology found in this 

 family, and by the fact that the larvae of most 

 genera have a characteristic form that permits 



22 



