AHLSTROM: FISH LARVAE IN EASTERN TROPICAL PACIFIC 



identification to genus, even for genera in which 

 the species composition has not been fully 

 worked out. This point was stressed in two 

 recent papers dealing with identification of 

 myctophid larvae (Pertseva-Ostroumova, 1964; 

 Moser and Ahlstrom, 1970). 



Because of the importance of this group in 

 the tropical ichthyoplankton, I will discuss its 

 composition in more detail than for any other 

 family except the Gonostomatidae. 



Moser and Ahlstrom (1970) described devel- 

 opmental series for 14 species of lanternfishes 

 with narrow-eyed larvae in the California Cur- 

 rent. The following species also occur in the 

 EASTROPAC area: Electrona rissoi, Diogeiv- 

 ichthys atlantictis, D. latematus, Benthosema 

 panameiise, Hygopkum atratum, H. reinhardti, 

 Myctophiim nitidulum, Loweina rara, Gonich- 

 thys tenuiculus, and Centrobranchus choero- 

 cephalus. 



Table 14. — Areal occurrence and relative abundance of larvae of Myctophidae on EASTROPAC I. 



Table 15. — Summary, by genus or species, of occurrences and relative abundance of myctophid larvae in the four 



vessel patterns occupied on EASTROPAC I.' 



1 The table summarizes the data presented by individual station in Appendix Table 2. 



» Centrobranchus larvae ore included under unidentified myctophid larvae in Appendix Table 2. 



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