PROC. U.S. NAT. MUS. VOL. 123 



ROPER AND YOUNG — PLATE 1 



' III ) 



Sg§f\ 



A 



Chiroteuthis: A, "doratopsis" stage, 32 mm mantle length (ml) (modified from Pfeffer, 

 1912, pi. 46: fig. 4); b, "doratopsis"-type tentacle showing larval club distally and 

 developing adult club on stalk, 28 mm ml, Dana 1157 n. Valbyteuthis danae: c, ventral 

 view, 34 mm ml, Dana 1206 v; d, adult tentacular club, 47 mm ml, Elt. 34. Valbyteuthis 

 species: E, ventral view of larva, 15 mm ml, Scot 77; F, larval tentacular club, IS mm ml. 

 Scot 77. 



