44 G Mr. E. S. Russell on the Ceph<dopoda 



White, and differs from the other genera of the family ia the 

 character of the pleopods in the female sex. 



(2) The remaining species assigned to Puerulus, P. pelluct- 

 dus, Ortra., P. spiniger, Ortm., and P. atlanticas, Bouvier 

 ( = PanuHrus inermis, Pocock), are founded on specimens in 

 a stage of development intermediate between the Phyllosoma 

 and the adult form, called by Boas the " Natant-stage." 



(3) Puerulus spiniger, Ortmann, is the Natant-stage of 

 PanuUrus versicolor (Latreille), and it passes into the adult 

 form without any perceptible increase of size, while preserving 

 unchanged the general pattern of coloration. 



(4) Jasus passes through a Natant-stage differing from 

 those which have been referred to Puerulus in possessing a 

 median rostral tooth. 



LIX. — Preliminary Notice of the Cephalopoda collected hi/ 

 the Fishery Cruiser ' Goldseeker; 1903-1908. By E. S. 

 Russell, M.A., Research Student, University of Glasgow. 



The collection of Cuttlefish made by the * Goldseeker' under 

 the International Committee for the Investigation of the 

 North Sea (Scotland), and entrusted to me by Professor 

 D'Arcy W. Thompson for description, contains representatives 

 of sixteen species, of which three are new. The collections 

 were made on the east and north coasts of Scotland, round the 

 Shetlands, and between the Shetlands and the Faeroes. 



OCTOPODA. 



Polypus arcticus (Prosch). 



pi:jcatorum ( Verrill). 



faeroensis, sp. n. 



Moscliites cirrosa {Lamarck). 



Decapoda. 



Loligo forbesii, Steenstrup, 



Sepiola rondeletii, Leach, var. 



scandica, Stp. ( = S. oweniana, 



Pfeffer, 1908). 



atlantica, TJ'Orbignt/. 



aurantiaca, Jatta. 



Calliteuthis reversa, Verrill. 

 Brachioteuthis bowmani, sp. n. 

 Tracheloteuthis riisei, Steenstrup 



(including T. behnii, Stp.). 



media (i.). ' Desmoteuthis hyperborea (Steen- 

 Rossia macrosoma {Delia Chiaje). i stmp). 

 glaucopis, Loven. I Taonidium pfefferi, sp. n. 



Polypus faeroensis J sp. n. 



The body is very plump and is much larger than the head. 

 There is a distinct constriction between head and body. 

 The breadth of the head is about three-quarters that of the 

 body, its depth about three-fifths. 



The colour is a fine reddish purple, of a deep shade on the 



