122 OCTOPUS, 



O. TUBERCULATUS, Bhiiiiv. PI. 20. tigs. 22-27. 



Body short, round, bat-k with four conical, acute, diverging 

 beards ; head short, ocuhir beards two, the hinder elongated ; 

 arms short, cups very large, the tirst three in one line ; web 

 rather wide, extending up the arnis. Violet brown, beneath 

 wliite. 



Total length. 400 mill.; length of body, 80 mill.; length of arms 

 2, 800 mill, ; 3, 2T0 mill. ; 4, 240 mill, ; 1, 280 mill. 



This species may be considered rather doubtful. l)r. Fischer. 

 Mr, Jeffreys and Verany regard it (notwithstanding its tuber- 

 culate surface, etc.) as a variety of 0. vulgaris, whilst d'Orbigny. 

 Gray. VVeinkanff and Targioni think it distinct. 



Mediterranean Sea ; Atlantic Coasts of Europe, Africa ; 



West Indies ; Pacific Ocean. 



Arms 4, 3, 2, 1. 

 0. POLYZENiA, Gray. 



Body oblong, rounded, short, with a few scattered warts or 

 beards; arms slender; wel) short ; cu{)S large. 



Port Essington, Australia. 

 A specimen in Brit. Mus. Not ligured. 



Length of arms not stated. 

 O. Boscn. Lesueur. 



Body roundish, back with a few regularly placed larger tuber- 

 cles ; eyes with three conical beards ; arms elongate, without 

 beards, the upper pair with a very wide dorsal memlirane ; web 

 moderate. 



A very d<)ul)tful species. It may =^ 0. polyzenia. but prob- 

 ably neither of tliem are good s})ecies. 



Australia. 

 2. Gups of the dorsal pair of arms largest. 



Arms 1, 2, 3, 4, 

 0, CuviERi, Orb, PI, 88, fig, ;")(i ; pi, 87, fig. 55. 



Body oblong, enlarged below, warty above, and with a medial 

 posterior beard ; aperture of moderate size ; ocular beards indis- 

 tinct. Arms very long, slender, unequal, the 1st and 2d much 

 longest. Web broad. Cups elevated, some on the two upper 

 pairs of arms larger. 



