PLATE XXIV. 



PAGE 



Figs. 1-6. LOLIGO ELLIPSURA, n. sp., . . .160 



Fig. 1. The specimen, seen from the ventral aspect ; natural size. 



Fig. 2. The dorsal surface of the head ; natural size. 



Fig. 3. Part of the horny ring and papillary area, from a large tentacular sucker ; 

 magnified 450 diameters. 



Fig. 4. Side view of a sucker, from one of the sessile arms ; magnified 60 diameters. 



Fig. 5. Front view of a similar sucker; magnified 60 diameters. 



Fig. 6. A lateral tentacular sucker ; magnified 100 diameters. 



Figs. 7-15. LoLiGO JAPONiCA, Steenstrup, . .157 



Fig. 7. The specimen, seen from the ventral aspect ; natural size. 



Fig. 8. Side view of a sucker, from one of the sessile arms ; magnified 10 

 diameters. 



Fig. 9. A terminal tentacular sucker ; magnified 50 diameters. 



Fig. 10. The hectocotylised arm of a specimen in the Copenhagen Museum ; 

 magnified 2 diameters. Drawn by Mr. Thornam. 



a. A small portion, still more enlarged, to show the form of the papilte. 



Fig. 1 1 . Inner aspect of the tentacular club ; magnified 2 diameters. 

 Fig. 12. Lateral aspect of the tentacular club ; magnified 2 diameters. 

 Fig. 13. A lateral tentacular sucker ; magnified 20 diameters. 

 Fig. 14. A median tentacular sucker; magnified 10 diameters. 

 Fig. 15. The gladius ; natural size. 



