ARCHITEUTHIS. 183 



[Genus ARCHITEUTHIS, Steeiistrup.] 



A nuinlxM- of gigaDtic coi)lial()])0(ls allied to Ommastrephes or 

 Loligo have been described and referred, upon eonsiderations of 

 size principall}', to the genera Architeuthis^ Megaloteuthis. Dino- 

 teuthis, Mouchezia, etc. The three latter names have not been 

 maintained, and are generally allowed to be synonymous with 

 the tirst or with Orti'inastrephes. With regard to Architeuthis, 

 it is said to be insufficiently characterized in a proof copy with 

 plates, of a paper entitled " Spolia Atlautica," and intended to 

 be published in the Memoirs of the Copenhagen Academy, 5tli 

 ser., vol. iv, 1856. I have examined this journal, but do nut 

 find the paper included in it, and therefore suppose that the 

 l)ublication was suppressed. So vague have been the views 

 regarding this genus among those who have described the spe- 

 cies, that each one has a different idea of its characters. Mr. 

 A. E. Verrill, who has more carefully studied these immense 

 cephalopods than any of his contemporaries, has himself been 

 mislead into describing and figuring a portion of the mouth 

 lining for the tongue (see pi. fi, fig. 6), but afterwards discovered 

 his mistake by finding the real odontophore, which has the essen- 

 tial characters of Omviastrephes. It is quite probable that some 

 of the vague characters given in the descriptions of these 

 immense animals are sexual or only individual, and that future 

 investigation will reduce the number of species. I prefer for 

 the present to treat them all as a section of Ommastrephea, and 

 will here enumerate the distinctive characters as far as ascer- 

 tained : the popular descriptions of them may be found in the 

 first part of this woi'k (yi. 74. H xeq.). 



O. ROBUSTUS. Dall. 



Three sitecimens discovered on the coast of Alaska, by Mr. 

 W. H. Dall, in 1872. He preserved portions of one of them. 

 The largest specimen had a total length of 14 feet, but the ends 

 of the tentacles had been destroyed ; length from tail to root 

 of arms, 102 inches; to front edge of mantle, 91'5 inches; 

 width across fins, 42 inches ; diameter of body, 18 inches ; 

 slender portion of tentacular arms remaining, (il inches; diame- 

 ter, 2-5 inches ; shorter arms (ends and suckers gone), 30 to 40 

 inches; diameter of eyes, ]'25 inches ; length of pen, 89 inches. 



