197 



BRITISH CEPHALOPODA: THEIR NOMENCLATURE 

 AND IDENTIFICATION. 



By WILLIAM E. HOYLE. 



(Read before the Society, April, olh, 1902). 



The revised list of British marine moUusca, drawn up under the 

 auspices of this Society, has now been pubhslied, and has been 

 authorised by the Society at its last annual meeting. As the reponsi- 

 bility for the names adopted for the Cephalopoda has rested mostly 

 upon myself, I think it may be worth while to offer a brief explana- 

 tion of the cases in which the nomenclature adopted by Jeffreys ['69], 

 has been departed from. This is the more necessary as but few of our 

 members have leisure to devote to studying mere questions of priority, 

 and the history of some of the names in the present list is rather in- 

 volved. 



Jeffreys' list contained only fourteen species, whereas the one just 

 published by the Society, includes twenty-one. Seven names used by 

 Jeffreys do not now appear, whilst seven species have been added. 

 Referring for a moment to the latest revision by the Rev. Canon 

 Norman ['90], we find the present list is practically the same as his, 

 with the exception of two or three changes of name. The differences 

 between the three lists may best be shown by placing them side by side. 



Comparative Lists of British Cephalopoda. 



CONCHOLOGICAL 

 SOCIETY, 1902. 



Ommastrephes sagittatiis . 



Sthenotetithis pteropiis 



lUex comdeti 



Todaropsis eblaiUE ... 



Architetithus \_monachiis] . 



Spirilla perotii 



Onycholettthis [I'anksi] 



Loligo Jorbesi 



L. media 



L. inarmoicc 



Sepia officinalis 



S. orbignyana 



S. elcgaiis ... 



Sepiola scandica 



S. atlantica 



Rossia viacrosoiiia... 



R. glaitcopis 



Taoniiis hyperboreus 

 Polypus vulgaris ... 

 P. ardiciis 

 Mosc kites cirrosa ... 



NORMAN, 1890. 

 O. ( Todarodes) sagiltafus 



O. {Illex) coindeti ... 

 O. eblance ... 

 A. numachiis 

 S. peronii ... 

 0. banksii ... 

 L. forbesii ... 

 L. media 

 L. iiiarinoric 

 S. officinalis 

 S. elegans .. 

 S. rtipellaria 

 S. scandica 

 S- atlantica 

 R. niacrosoina 

 f R. glaiicopis 

 yP. sttblevis... 

 T. hyperboreus 

 Octopus vulgaris .. 

 O. arcticiis 

 Eledone cirrosa 



JEFFREYS, 1869. 



0. todariis 



0. sapitiatus 



S. peronii 

 O. banksii 

 L. vulgaris 



\L. media 



S. officinalis 

 S. elegans 

 S. biserialis 



VS. rondeldii 



R. macrosoma 



R. papillifera 



O. vulgaris 

 E. cirrosa 



Ommastrephes sagittatus.— The question of the right name to 

 be adopted for this species has given rise to a prolonged controversy. 



