AHLSTROM: KIND AND ABUNDANCE OF FISH LARVAE 



Table 19. — Frequency of occurrence and relative abundance of the kinds of myctophid larvae on EASTROPAC II, 



and for equivalent coverage on EASTROPAC I. 



'^ Not 'Separately tabulated. 



to ETP I (comparable coverage, identical num- 

 ber of samples). 



Genus or species of myctophid ^'^^ / 



Hygophum atratum,-reinhardti 0.83 



Notolynchus valdiviae 0.88 



Symbolophoms evermanni 0.91 



Lampanyctus spp. 1.01 



Benthosema panatnense 1.10 



Ceratoscopelus iownsendt-complex 1.11 



Diaphus spp. 1.26 



Myctophum aurolaternatum 1.27 



Gonichthys tenuiculus 1.30 



Hygophum proximum 1.39 

 Myctophiim spp. (other than 



M. aurolaternatum) 1.45 



Notoscopetus resplendens 1.66 



Diogenichthys laternatus 1.93 



Triphoturus spp. 2.31 



No. in 

 ETP I 



Benthosema panamense (Taning) 

 (13 occurrences, 1,131 larvae) 



Although larvae of this species ranked fifth 

 in abundance among myctophid larvae, they 

 were collected in a relatively narrow coastal 

 band, no wider than 200 miles (Figure 11). 

 A similar pattern of inshore, clumped distribu- 

 tion was encountered on ETP I (Moser and Ahl- 

 strom, 1970, Figure 45). 



Benthosema suhorhitale (Gilbert) 

 (2 occurrences, 2 larvae) 



Only two specimens of the larvae of Bentho- 

 sema suhorhitale were taken on ETP II. Larvae 

 of this species only recently have been positively 

 identified. The larval series was initially estab- 

 lished by Dr. H. G. Moser from Dana material. 

 Larvae are strikingly similar to Electrona 



1185 



