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Memoir Sears Foundation for Marine Research 



Figure i8. Zapleryx brevirostris, immature male, about 345 mm long, from Rio de Janeiro, Brazil (Harv. Mus. 

 Comp. Zool., No. 536). A Ventral view of pelvics. B Lateral view of tail. C Mouth and nostrils, about i X. 

 D Eye and spiracle, about 1.5 X- E Upper teeth, about 18 X. 



Spiracles: length 2.8, 2.6; distance between 7.0, 6.5. 

 Mouth: breadth 7.2, 7.2. 



Nostrils: distance between inner ends 4.1, 3.7. 



Gill openings: lengths, ist 1.7, 1.9; 3rd 1.6, 1.7; 5th 1.3, 1.3; distance between 

 inner ends, ist 15.7, 15.2; 5th 12.2, 12.2. 



