34 

 32- 



3.0- 

 2.8- 

 26- 

 24- 



FISHERY BULLETIN: VOL. 78. NO. 3 



r 



0.2- 



0.0 



20 25 30 35 40 45 50 55 60 65 70 75 80 



STANDARD LENGTH (mm) 



Figure 2. — Relationships between standard length and lens diameter for 14 species of mesopelagic fishes designated by initials of 

 genus and species names. Lines for Lampanyctus steinbecki, L. nobilis, Ceratoscopelus warmingi, Benthosema suborbitale, 

 Diogenichthys atlanticus .Bolinichthys longipes ,Dixiphus schmidti ,D . perspicillatus ,D . trachops,Melamphaesdanae, and Bregmaceros 

 japonicus and dashed lines for Triphoturus nigrescens and D. fragilis are drawn from equations determined by least squares regression 

 on measurements from five or more specimens of each species over the size ranges plotted; coefficients of determination (r^) exceeded 

 0.80 for all except Diogenichthys atlanticus (r^ = 0.62). Notolychnus valdiviae ir^ = 0.23) is represented by the area enclosed by points 

 from five specimens. 



634 



