116 BULLETIN OF THE MUSEUM OF COMPARATIVE ZOOLOGY. 



Fig. 4. Eossia sublevis Yerr. Pen from ? (see Plate III. fig. 2), enlarged four di- 

 ameters. 



Fig. 5. Eossia Hyatti Verr. ? Suckers, enlarged fifteen diameters ; a, one of the 

 largest from third pair of arms, side view ; b, c, two forms of suckers from 

 tentacular club. 



Fig. 6. Itossia mcgaptcra Verr. ? Suckers, enlarged fifteen diameters ; a, front 

 view of one of the largest from third pair of arms ; b, c, d, three suckers from 

 the tentacular club. 



PLATE VIII. 



Fig. 1. Alloposus mollis Verr. d" Side view, showing the sac containing the hecto- 

 cotylized arm, cut open, so as to expose the partially developed arm. One 

 half natural size. 



Fig. 1*. The same. Hectocotylized arm removed from the sac, enlarged two diame- 

 ters. 



Fig. 2. The same. ? Ventral view, one half natural size. 



Fig. 2*. The same. 9 Dorsal view, one half natural size. 



March, 1881. 



