MUSEUM OF COMPAILVTIVE ZOOLOGY. 115 



EXrLAXATION OF PLATES. 



I'LATK 1. 



Fig. 1. Opisthoteuthis Agasstzii Verrill. Dursal view. Natural size. 



PLATE IL 



Fig. L Opisthoteuthis A/jnssi:ii Verrill. Ventral view, showing the arrangement of 

 the suckers and cirri. Natural size. 



PLATE in. 



Fig. 1. Nectoteuthis Pourtalpsii Verrill. Dorsal view. Enlarged two diameters. 



" 1 a. The same. Enlarged two diameters. 



" lb. The same. Left arm of the fourth pair. Side view. Enlarged four di- 

 ameters. 



" 2. Rossia hrachyura Verrill. Left arm of the second pair. Front view. En- 

 larged four diameters. 



" 3. Octoims pirtus YcrfiW. Dorsal view. Enlarged three diameters. 



" 4. Abralia ii)c(/aptcm Verrill. Ventral view of the type-specimen from Sta- 

 tion ll;]7, in 173 fathoms. Eularued two diameters. 



