of British Mollusca. Alb 



10. Onychoteuthis Banhsii (Leach). 



Lolic/o Banhsii, Leach, Zool. Miscell. iii. (1817), p. 141. 



Onychoteuthis Bergii, Liechtenstein, Naturgesch. Brasiliens, 1818, p. 15!>2. 



Onychia angulata, Lesueur, Journ. Acad. Nat. Sci. Philad. ii. (1821), 



p. 99, pi. ix. fig. 3, and p. 296, pi. xvii. 

 Onychoteuthis Bunksii, d'Orbigny, Ceph. Acet. 1855, p. 386. 



Dr. Kose (' Zoologist,' 1853, p. 3864) records the capture 

 of this species at Banff, Scotland. It is a species which was 

 most unlikely to be mistaken, and, moreover, the specimen 

 appears to have been examined by Arthur Adams ; so that 

 there can be no doubt that this oceanic species has been 

 brought to our shores as others have been to the opposite con- 

 tinent. 



Its distribution is very general in the Atlantic, Indian, and 

 Pacific Oceans. In Northern Europe it has been recorded 

 from South Sweden and Finmark (Loven), Cattegat and 

 Baltic Sea (Posselt). 



Fam. 4. Ommastrephidse. 

 Genus 1. Ommastrephes, d'Orbigny. 



Subgenus 1. Ommastrephes, d'Orbigny (a. str.) 

 = Ommatostrephes, &teenstni-p=Sthenoteuthis, Verrill. 



Tentacular arms having the lower portion of their clubs 

 furnished with numerous small smooth-rimmed suckers, 

 alternating with tubercular processes (=" fixing cushions," 

 Boyle) for their mutual adhesion. Ordinary suckers of the 

 clubs in four rows. Arms provided with very broad thin 

 marginal membranes. Caudal fin very broad. 



Steenstrup separated the genera or subgenera Illex and 

 Todarodes from Ommastrephes of d'Orbigny for certain species 

 included by d'Orbigny in his Mon. Ceph. Acet., and retained 

 that author's name, changed in spelling to Ommatostrephes, 

 for the remaining species with 0. Bartramii, d'Orb. {=0. 

 cylindricus, d'Orb.), as the type. Now the group thus restric- 

 ted is the very one for which Verrill had previously proposed 

 the name Sihenoteuthis : but both 0. Bartramii and 0. gigas 

 belong to this group, and, as these were the only species 

 originally placed in the genus by its author, Ommastrephes 

 must by the laws of nomenclature be retained for it. The 

 generic name cannot be applied to species subsequently inclu- 

 ded by him in the genus to the exclusion of those first embraced. 

 Moreover, 0. Bartramii had been taken by writers earlier 

 than Verrill as the type. I follow therefore the nomenclature 

 of Steenstrup and of Hoyle, except that I have treated Blex 

 and Todarodes as subgenera. 



