OCTOPUS. I I 1 



possible, and particuliir care has been taken to conii)i'ess the 

 synonymy within reasonable dimensions and to present it collec- 

 tivel}' and separately from the descriptive portion of the work : 

 it may be safely ignored by most readers. 



1. Cwps of the arms sub-equal, regular. 



A. The loioer cups far apart, in a single series, 

 a. Body smooth, not bearded. 



Arms 4, 3, 2, 1. 

 O. J^]gina, Gra}^ 



Body oblong, elongated, marbled. E^'es very prominent, without 



ocular beards. Arms rather elongate. Web short. Cups 



rather large and far apart, equal ; the five or six lower ones far 



apart, in a single series. 



Habitat unknown. 



Described from a specimen in spirits ; size not given. A 

 doubtful species. 



0. ARANEA, Orb. PL 23, figs. 1, 2. 



Body oblong, short. Head short, narrow, ocular beards one, 

 posterior. Arms much elongated, smooth, slender, very un- 

 equal. Cups small, close, numerous ; about 180 on the longest 

 arms ; the four lower ones in a single series. Web short. 



Total length, 215 mill.; length of bod}^, 16 mill.; relative 

 length of arms, 1, 100 mill.; 2, 140 mill. ; 3, 170 mill. ; 4,195 

 mill. 



Isle of France. 



M. d'Orbigny has seen a mutilated specimen of double the above 

 dimensions. 



O. Defillippi, Verany. PI. 33, fig. 39. 



Head rather oblong, narrow; body short; arms very long; 

 eyes unicirrated ; umbrella well developed. 



Length, 524 mill. ; length of sack, 40 mill. ; of head, 34 mill. ; 

 length of arms, 4, 390 ; 3, 3T0 mill. ; 2, 330 mill. ; 1, 300 mill. 



Mediterranean . 



It is certainly very close to 0. aranea ; from which Verany 

 distinguishes it by its longer head and more developed umbrella 

 or web. 



