CEPHALOPODA OF THE HAWAIIAN ISLANDS. 289 



Family BOLITyF.N'II)£ Chun ign. 



Bclitcmidfc Chun 191 1. p. 50. 



Body semigelatinous. Third arras much the longest and largest; suckers on all the arms in a single 

 row. Right third arm hectocotylized, the chief modification consisting in the enlargement of a part 

 or even all of the suckers. Olfactory organ papilliform. 



Genus ELEDONELLA Verrill 1884. 



Eledonella Verrill 1884, p. 144. 

 Eledonella Chun 191 1, p. 16. 



Body gelatinous, weakly pigmented, semitransparent. Hectocotylization affecting onlv the distal 

 suckers of the arm. 



Type. — Eledonella pygmaea Verrill 1884 (monotypic), a species of the New England region. 



Eledonella species (young 1 !. 



Bolitama species Berry 1909, p. 418 (locality record only). 



Mantle saccular, much wrinkled, longer than broad. Arms short, incompletely webbed; the 4 to 6 

 large suckers arranged in a single series. Funnel small, little projecting. Head small. The single 

 specimen obtained is too young for safe determination. It is badly contracted and chiefly characterized 

 by its large eyes, wide mantle opening extending well past the eyes, and short arms, the third and 

 fourth pairs being the longest. The specimen was at first referred to BoliUsna, but is more probably an 

 Eledonella. 



mm. 



Total length 1 ^ 



Length of mantle (dorsal) 10 



From Albatross station 4039, 670 to 697 fathoms, off Kawaihae Light, Hawaii [S. S. B. 210]. 

 Family POLYPODIA Hoyle 1004. 



Octopidm (pars) d'Orbigny 1838, p. 3; 1845. p. 164. 

 Octopodidce H. and A. Adams 1853, vol. 1, p. iS. 

 Polypodidce Hoyle 1904, p. 14. 

 Polypodidce Naef 1912b, p. 197. 



Animals of small to gigantic size. Body short, thick, and usually firm and muscular. Sexes 

 nearly similar. Ventral mantle connection consisting of a pair of shallow folds on the hinder margin 

 of the funnel, with shallow grooves to correspond on the inner surface of the mantle. No aquiferous 

 pores. Arms with one or two rows of suckers and a more or less well-developed basal web. Hectocotvlus 

 confined to the extreme tip of either the right or left third arm; a narrow groove or fold in the edge of 

 the marginal membrane terminates in a roughly spoon-shaped copulatory organ at the extremity. 



Genus POLYPUS Schneider 1784. 



Polypus Schneider 1784, p. 116. 



Octopus Lamarck 1799, p. iK(.fide Hoyle). 



Octopus d'Orbigny, in d'Orbigny and Ferussac 1838, p. 17. 



Octopus Hoyle 1886. p. 74. 



Polypus Hoyle 1901, p. 1-5. 



Body short, thick, rounded posteriorly; surface smooth to warty, usually with one or more tuber- 

 cular cirri over either eye. Arms and umbrella very variable; suckers in two alternating rows, which 

 are perhaps better to be regarded as a single extremely zigzag row. Third right arm hectocotylized. 



Type. — Sepia octopodia Linne 1758, a European species perhaps identical with P. vulgaris (Lamarck 

 1799). Schneider designates no type and does not even name a species, but the inference seems clear 

 that the Sepia octopodia of Linn6 is the form which he had in mind, especially since at that time this 

 was the only species of the group which had been characterized by a binomial name. Hoyle, however, 

 arrives at the conclusion that Octopus vulgaris Lamarck 1799 is available as the generic type. 



