ATLANT. DEEP-SEA EXPED. 1910. VOL. Ill] 



CEPHALOPODA. 



13 



Stat. 70. 1100 m. w. 1 specimen. The "Michael 

 Sars" specimen is a little smaller than the one described 

 by Joubin, 1902, but it agrees fairly well with his diag- 

 nosis. This is specially the case as regards the shape of 

 the club, which is thin, with 6 or 7 rows of small dark 

 suckers. The body, arms, and fins exhibit a purple 

 brownish colouring. 



Loliginidae d'Orbigny. 

 Loligo media Linne. 

 Stat. 1 4. Trawl 69 m, about 20 specimens of average size. 

 „ 20. „ 153 m, one long-tailed specimen. 



Loligo Forbesi Steenstrup. 



Stat. 39 B. Trawl 267—280 m. One specimen, badly 

 damaged. 



Sepfidae d'Orbigny. 

 Sepia d'Orbignyi Ferussac. 

 Stat. 34. 1 specimen. 



Sepia officinalis Linne. 

 Stat. 37. Trawl 39 m. 3 specimens. 



OCTOPODA. 



Philonexidae d'Orbigny. Posterior end of body to end of funnel 100 mm 



Tremoctopus atlanticus d'Orbigny. Breadth of head 70 „ 



Stat. 51. Surface. 2 specimens. Len § th of first ri S nt arm 360 - 



53 _ 4 — - second „ -._„ 355 „ 



" 62 — 3 — — third : " ' " 325 » 



— - fourth „ „ 275 „ 



Argonauta Linne sp. j ne roun( ]j s h arms nave comparatively small suckers, 



Stat. 45. 200 m.w. One very young larva evidently 4 r 5 mm. in diameter, which only protrude slightly 



a female. above the surface. The dorsal arms are joined by a broad 



„ 49 B. 2000 One young larva. outer web, running along the dorsal area until it reaches 



Quite young octopod larvae, which belong either to the proximal third part of the arm. Between the first 



Argonauta or to Tremoctopus were captured at:— and second arms the web runs along the ventral side of 



Stat 95 2000 m w ^ e dorsal arms as ^ ar as the points broadening a little 



gg 3qq in the distal section. This is also the case as regards 



101 200 tne ventra l weD °f the second, and also — though not quite 



so pronouncedly— the third arms. 



The slit in the mantle reaches to a point in the 



Octopodidae d'Orbigny. median line between the mouth of the funnel and the 



Octopus (Polypus) n. s P . e Y es - Th e comparatively large eyes are dorsally located 



„, ro ,_... . ,,«,-, . and the funnel is not very conspicuous. The present 



Stat. 58. 100 m.w. A small flesh-coloured octopod, . ■ •,.,., , * ^ 1 j ■>• 



, . , ,. . , . ., , , , . • . . \. species evidently belongs to a group of Octopoda peculiar 



in which the eight arms are thrown far back, is interesting / , J ,, , ., , , ,. „ „ . ... 



., . 7, . • , ,. ,, , ,, to moderate depths, described by Verrill as O. Bairdu, 



in so tar that the semi-gelatinous mantle encloses the „ , , , x . , ., . ■ , , c . , , T 



,., . „ L , , . , ,. , O. lentus and O. piscator. The Octopus figured by Joubin 



funnel, only a narrow slit in the mantle being left free, /1f ,™ , , IIT £ . - s ^ j. < ■ u 1 1 u 1 



. ' -L, . ,, . , . , , , , . b . , (1900, tab. Ill, fig. 7) as Octopus Levis, Hoyle, also belongs 



as in the Chiroteuthidae. I have looked in vain for a , ,, . . . , . ,, , . . . 



... , to this group, but when comparing the typical specimens 



reference to a similar arrangement, and consequently , . f,. , ... . , ° ,. 



. ,. , , ... , n J taken at Kerguelen with Joubin s figure we recognise that 



believe that we have to do "with a new form. ,, , , , , _. , ,.,-,• j- .- • . j 



the latter cannot be Octopus Levis, which is distinguished 



_,,... by its reddish brown colour. Joubin's drawing is also 



Octopus Lotnei n. sp. J ° 



sufficient to show that the species is devoid of such webs 



Stat. 41. Trawl. 1365 m. This large octopod re- on the arms as we have mentione d abo ve. 

 presents a deep-sea form, the body exhibiting a peculiar 

 gelatinous consistency, and the perfectly smooth surface 



having a light greyish violet colour. Its total length is Bolitaemdae n. fam. 



445 mm. and the other measurements run as follows:- Octopoda with entirely gelatinous body; the cranial 



Mantle-length to ventral edge of mantle about 70 mm cartilage rudimentary. Eyes widely separated, the optic 



Posterior end of body to centre of eye 80 „ nerve being lengthened. Olfactory tubercles stalked, 



