122 OCTOITS. 



O. TUBERCULATIS. Blainv. PI. 21). figs. 22-27. 



Body short, round, back witli four conic;il. acute, diverging 

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

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

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

 white. 



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

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



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

 Mr. .Jett'reys nnd Verany regard it (notwithstanding its tuber- 

 culate surface, etc.) as a variety of Q. vulgarix, whilst d'Orbignv. 

 (Tray. Weinkauff and Targioni think it distinct. 



Mediterranean Sea ; Atlantic Coasts of Europe, Africa ; 



West Indies; Pacific Ocean. 



Arms 4, 3, 2, 1. 

 O. POLYZEM A. (Jray. 



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

 beards; arms slender ; web short ; cups large-. 



Port Essington, Australia. 

 A specimen in Brit. Mus. Not figured. 



Length of arms not stated. 

 O. Boscn. Lesiieur. 



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 

 moderate. 



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

 ably neither of them are good species. 



Australia. 

 2. Gups of the dorsal pair of arms largest. 



Arms 1, 2, :}, 4. 

 O. < 1 rviKRi. Orb. PI. :{s. li u -. 56; pi. :J7. tig- 55, 



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

 posterior beard; aperture of moderate si/.c ; ocula r 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. 





