CEPHALOPODA .MASSY. 117 



Dimensions /// .!//'//////( //(>-. 

 End of body to ventral mantle-margin ...... ."j 



End of body to eve ......... S 



Breadth <>f hodv ........ il ."iii 



Breadth of head . . 7 



I'mlii-ella between dorsal arms . :! 



1st left ami ... .... 20 



2nd left ;inn ... . mutilated 



3rd left arm ............ ."> 



4th left iirin ............ 



'////-, l,,,;iliti/. ( {' rio/iH-fltx. the P>a\ of Naples. Italv: (if iji'ili-ilift, loll"'. 100 



W., hit. 8 X., Pacific Ocean (>/,' Tryon). 



Distribution. Of r/W^r^.v, Mediterranean (Delle Chiaje. Jatta. etc.); middle 

 Atlantic; .lapan (AViilker). Of ,/m,-///>. eastern mid-Pacific (Sonlevet) ; neighbourhood 

 nf tin- Hawaiian and Midway Islands (. 1/iWmv.v) ; eastern tropical Pacific (I loyle, as 

 quoy<nnix}\ lietween 1'apua and Japan (Iloyle): near Mauritius (Soiileycf , as </u/>itix) 

 (Berry). 



FAMILY POLYPODIDA lv 

 :'>. Polypus rugosus (Rose), d'Orbigny. Figs. 5, fi. 



Si'/iiii i-iii/iixii, Bosc, Actes Soc. d'histoire nat. Paris, p. 24, pi. 5, figs. 1, 2, 1792. 

 Octopus nii/nKiin, d'Orbigny, Cephalopodes acetabuliferes, p. 45, pis. G, 23, fig. 2, 1838; Brock, 

 Zool. Jahrb., II, pp. 591-G14, j>l. 16, figs. 1-4, Jena, 18K7 ; Joubin, Bull. Sue. Zuol. 

 ^^H France, XXII, p. 90, 1897. 



granulatus, Lamarck, Ale.ni. Soc. d'histoire nat. Paris, j>. 20, 1799 ; Hoyle, 

 "Challenger" Rep. (Cephalopoda), XVI, pp. ^0-81, 1886; Goodrich, Trans. Linn. Soc., 

 VII, p. 19, 1896 ; Wiilker, Abh. Wiss., III. Suppl. Bd. I. Abh., pp. 5, 6, Alimrhcn, 1910. 

 Ixisrii, \ar. pnUlda, Hoyle, Diagnoses I, p. 223, 1885 : Prelim. Hep. I, p. 97, 1SS."> ; 

 "Challenger" Hep., pp. 81-83, pi. 1, pi. 3, fig. 2, 1886. 

 Octopus jmli/zi'iiiii, Gray, Brit. Mus. Cat., p. 13, 1849 ; E. A. Smith, Hep. Zool. Coll. Imlo 



Pacific Ocean during voyage of H.M.S. " Alert," p. 34, pi. 4, tig. A, L884. 

 (?) Octnjiiix kagosMmensis, Ortmann, Zool. Jahrb., V, p. 644, pi. 21, fig. 2, 1SSS. 



Station 4-J, otf Uio de Janeiro, 22 55' S., 41 :.U' W., 40 fathoms (7:5 in.), 

 Agassix trawl, bottom fauna (sand), May 2nd, 1913. One . 



This has the arms two and a half to three and a half times the length of the hard, 

 still', rugged lioily. The arms are so much curled up that the measurements given 

 lie low must be regarded as approximate. The well is much less than the ventral 

 mantle-length, and about ec|iial all round, slightly lowest lietween the ventral arms, 

 and highest between the left lateral arms; it is not much continued up the arms, but 

 forms expansions at the distal portion of each, especially on the fourth pair. The 

 suckers are very large, and are enlarged on the four lateral arms. 



Hectocotylus very minute. A furrow is present on the ventral mantle. Funnel- 

 organ W-shapctl. Colour reddish-brown above with oblong dark markings, pinkish 

 butt' below. Surface verv ruo-osc. even vcntrallv. and inside web. Lar^e ocular cirri. 



