122 OCTOPUS. 



O. TUBERCULATUS, Blaiiiv. PI. 29, figs. 22-27. 



Body short, round, back with four conical, acute, diverging 

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

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

 rather wide, extending' up the arms. Violet brown, beneath 

 white. 



Total length, 400 mi 11.; length of body. ,xo mill.; length of anus 

 2, 300 mill. ; 3, 270 mill. ; 4, 240 mill. ; 1. 230 mill. 



This species may be considered rather doubtful. Dr. Fischer. 

 Mr. Jeffreys and Yerany regard it (notwithstanding its tuber- 

 cnlate surface, etc.) as a variety of 0. vulyaris* whilst d'Orbigny. 

 (Iray. Weinkauff and Targioni think it distinct. 



Mediterranean Sea ; Atlantic Coasts of Europe, Africa ; 



West Indies ; Pacific Ocean. 



Arms 4, 3, 2, 1. 

 O. POLYZENIA, Gra\ . 



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

 beards; arms slender ; web short ; cups large. 



Port Essington, Australia. 

 \ specimen in Brit. Mus. Not figured. 



Length of arms not stated. 

 O. BOSCH, 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 membrane; web 

 ) n ode rate. 



A very doubtful species. It may = 0. polyzenia. but prob- 

 ably neither of them are good species. 



Australia. 

 2. Cups of the dorsal pair of arms largest. 



Arms 1, 2, 3, 4. 

 O. OUVIKRI, Orb. IM. :JS. fig. r><; ; pi. 37. tig. 55. 



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

 posterior beard ; aperture of moderate sixe ; ocular bea rds indis- 

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

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

 pairs of arms larger. 



