104 THE VOYA.GE OF H.M.S. CHALLENGER. 



Eledone verrucosa, Verrill. 



1881. Eledone verrucosa, Vll., "Blake" Eeport, p. 105, pis. v., vi. 

 1881. „ „ VU., Ceph. N. E. Amer., p. 330, pis. lii., liii. 



1884. „ „ VU., Second Catal., p. 248. 



Habitat. — Station 170a, off the Kermaclec Islands, north of New Zealand ; 

 July 14, 1874; lat. 29° 45' S., long. 178° 11' W.; 630 fathoms; volcanic mud. One 

 specimen, $ . 



North Atlantic, south east of Long Island ; off Nantucket ; off Martha's Vineyard ; 

 off Delaware Bay; 466-1255 fathoms (Verrill). 



The agreement between the Challenger specimen and the admirable drawings and 

 description of Professor VerriU is so close that there can be no doubt as to the correct- 

 ness of this identification. The only differences appear to be that in the American 

 specimens the cirri round and above the eyes are a little more prominent than in that 

 from the Pacific, while the latter has the extremity of the hectocotylised arm formed 

 like that of an Octopus rather than like that of an Eledone, as sho-^Ti in Verrill's figure. 

 The Challenger specimen, moreover, has the second pair of arms the longest, the first 

 come next, while the third and fourth are subequal and still a little shorter ; but as 

 appears from Verrill's measurements {loc. cit.), these proportions are liable to variation. 



The point of greatest interest in connection with this specimen is its capture so far 

 away from the original habitat of the species, but this, as will appear in the sequel, is 

 not without parallel (see p. 223). 



Eledone rotunda, Hoyle (PI. VIII. figs. 4-6). 



1885. Eledone rohmda, Hoyle, Diagnoses I., p. 230. 

 1885. „ „ Hoyle, Prelim. Rep. L, p. 105. " 



Habitat. — Station 157, in the Southern Ocean, March 3, 1874; lat. 53° 55' S., 

 long. 108° 35' E.; 1950 fathoms; Diatom ooze. One specimen, ? . 



Station 298, off Valparaiso, November 17, 1875 ; lat. 34° 7' S., long. 73° 56' W.; 

 2225 fathoms ; blue mud. One specimen (arms only), ?. 



The Body is spheroidal, very little longer than broad, and the ventral groove is 

 not marked. The mantle-opening extends one-third round the body, ending some 

 distance directly below the eyes. The siphon is slightly tapering, and extends one- 

 third the distance to the umbrella margin. 



The Head is short, nearly as broad as the body, and the eyes are round and 

 rather prominent. 



The Arms are equal, and about twice as long as the body ; they are very stout, 



