PROC, U, S, NAT, MUS, VOL. 105 



LACHNER. PLATE 1 



Sexual dimorphism in coloration in specimens of Polymixia lowei from Cuba, collected 

 by William C. Schroeder on Atlantis Expedition. Top, male, 137 mm. in standard length, 

 from Station 3439j bottom, female, 143 mm., from Station 2981c. 



