08 BEY. A. M. NORMAN ON CYANEA IMRORCATA . 



Fig. 5. Cythereis Jonesii, Baird ; right valve, x 40. 



Fig. 6. „ ,, ,, seen from above, x 40. 



Fig. 7. „ „ ,j seen from below, x 40. 



Fig. 8. ,, „ ,, end view, x 40. 



Fig. 9. Unciola planipes, Norman; first gnatbopod, seen from one side, 



X 40. 

 Fig. 10. „ „ „ first gnatbopod, seen obliquely from 



above, x 40. 

 ,, ., ,, second gnatbopod, x 40. 



,, ,, „ pleon, seen from above, showing telson 



and uropods, x~40. 

 „ „ ,, last uropod, x 40. 



Cheirocratus mantis, Norman ; first gnathopod, x 16. 

 ,, ,, ,, second gnathopod, x 16. 



PLATE X. 



Fig. 1. Nymphon rubrum, Hodge. 

 Fig. 2. Tbyone flexus, Hodge ; slightly enlarged. 

 Figs. 3-9. ,, „ body spicules viewed flat and sideways. 



Figs. 10, 11. „ ,, body spicules in course of formation. 



Figs. 12, 13. ,, ,, foot spicules (from sides of foot). 



Fig. 14. „ „ terminal plate of foot (or sucking disc). 



(Figures 3-14 magnified 200 diameters.) 



Fig. 



11. 



Fig. 



12. 



Fig. 



13, 



Fig. 



14. 



Fig. 



15. 



II — On Cyanea hnporcata, an undescribed Medusa taken off the 

 Northumberland Coast. By the Rev. Alfred Merle Norman, 

 XL A. (Plate XI.) 



During the first dredging expedition, undertaken under the aus- 

 pices of the British Association, in 1862, a very fine and strikingly 

 beautiful Medusa was taken between seventy and eighty miles 

 off Tynemouth, as the steamer was returning from the Dogger 

 Bank. As far as I can ascertain it would seem to be an unde- 

 scribed species, and referable to the genus Cyanea, though the 

 tentacles remained very short during the time it was kept alive 

 in a bucket of water, and showed no signs of the extreme exten- 

 sibility which is generally so marked a feature in this genus. 

 Mr. Tuffen West, who was one of the party on board, made the 



