10 THE VOYAGE OF H.M.S. CHALLENGER. 



28. Octopus duplex, Hoyle (PI. VII. fig. 5 ; p. 90). 



1885, Octopus duplex, Hoyle, Diagnoses I., p. 226. 



29. Octopus lentus, Verrill. 



1880. Octopus lentus, Vll., Amer. Journ. Sei. and Arts, vol. xix. p. 138. 



1881. „ „ Vll., Ceph. N. E. Amer., p. 375, pi. ssxv. figs. 1, 2 ; pi. li. fig. 2. 



30. Octopus obesus, Verrill. 



1880. Octopus ohesus, Vll., Amer. Journ. Sci. and Arts^ vol. xix. pp. 137, 294. 



1881. „ „ Vll., Ceijh. N. E. Amer., p. 379, pi. xxxvi. fig. 3. 



31. Octopus furvus, Gould. 



1852. Octopus furvus, Gld., Moll. Wilkes Exped., p. 475, fig. 589. 



32. Octopus piscatorum, Verrill (p. 91). 



1879. Octopus piscatorum, VU., Amer. Journ. Sci. and Arts, vol. xviii. p. 470. 

 1881. „ „ Vll., CepL N. E. Amer., p. 377, pi. xxxvi. figs. 1, 2. 



1885. „ „ VU., Third Catal., pi. xlii. fig. 5. 



33. Octopus arcticus, Prosch (p. 91). 



1834. Sepia groenlandica (?), Dewh., Nat. Hist. Cetaoea, p. 263. 



1849. Octopus arcticus, Prosch, K. dansk. Vidensk. Selsk. Skriv., Ek. 5, Ed. i. p. 53, figs. 1-3. 



1856. „ „ Stp., Hectocotyl., p. 201, Tav. ii. fig. 2. 



1873. „ Bairdii, VU., Amer. Journ. Sci. and Arts, vol. v. p. 5. 



1878. „ „ Sars, Moll. Eeg. Arct, Norv., p. 339, pi. xxxiii. figs. 1-10. 



1881. „ „ VU., Ceph. N. E. Amer., pp. 368, 421, pi. xxxiii. fig. 1 ; pi. xxxiv. figs. 



5, 6 ; pi. xxxvi. fig. 10; pi. xxxviii. fig. 8; pi. xUx. fig. 4; pi. li. fig. 1. 



34. Octopus verrilli, n. n.^ 



1883. Octopus pictus, Vll., " Blake " Suppl., p. 112, pi. iii. fig. 3. 



35. Octopus pictus. Brock (PL VIII. fig. 3 ; p. 92). 



1882. Octopus pictus, Brock, Zeitschr. f. vfiss. Zool., Bd. xxxvi. p. 603, Taf. xxxvii. fig. 3. 



1883. „ maculosus, Hoyle, Proc. Eoy. Phys. Soc. Edin., vol. vii. p. 319, pi. vi. 



1884. „ „ E. A. Sm., " Alert" Eep., p. 36, pi. iv. fig. c. 



36. Octopus lunulatus, Quoy et Gaimard. 



1832. Octopus lunulatus, Q. et G., Voy. "Astrolabe," t. ii. p. 86, pi. vi. figs. 1, 2. 



1838. „ „ d'Orb., C^ph. acet., p. 59 ; Poulpes, pi. x. fig. 2, pi. xxvi. figs. 5-7. 



37. Octopus aranea, d'Orbigny. 



1826. Octopus aranea, d'Orb., C6ph. acet.; Poulpes, pi. v. (iiomen tantum). 

 1838. „ „ d'Orb., Ceph. ao(5t., p. 57; Poulpes, pi. v. 



1 VerrUl's name having been preoccupied by Brock, I take the liberty of re-naming the species after its original 

 describer, who has made us acquainted with so many interesting Cephalopods. 



