(X'Toprs. 1 If) 



ocular cirrus. Arms proportionally shorter, and nearly equal in 

 length. Umbrella well developed, one-fifth the length of the 

 arms. 



Total length, 270 mill. ; length of head, 30 mill. ; of body, 40 

 mill.; of arms, 1, 1S5 mill. ; 3, 200 mill. — Verany. 



Mediterranean. 



On\y a single specimen was observed by Verany. The colors 

 appear to be more brilliant than in 0. octopodia. 



Arms 3, 4, 2, 1 . 

 O. Troscheli, Targioni-Tozzetti. 



Body elliptically obtuse, subpyriform, smooth ; head small ; 

 eyes large ; arms thick at base, dorsally carinate, attenuate 

 towards their ends ; cups, five in a single series at base of arms. 



Mediterranean . 

 0, vulgaris^ with which this has been confounded, has only 

 three cups in single series. The distinction is very doubtful, I 

 think. The species has not been figured. 



Arm$ 8, 4, 2, 1. 

 0. Geryonea, Gray. 



Body (in spirits) marbled, smooth ; head, base of arms and 

 upper surface of web finely granulated ; eyes with one fleshy 

 tubercle, and one behind the eye ; upper eyelid rugose ; arms 



moderate, very thick at base, cups large ; web broad. 



Brazil. 

 A very doubtful species. Never figured. 



c. Back slif/Jiily granular. 

 Arms 4, 3, 2, 1. 

 O. Hardwickei, Gray. 



Middle of back, back of head and eyelids warty ; ocular 

 tentacles none ; arms moderate, rather slender ; cups rather 

 large, the five or six lowest one-i-owed, rather far apart; web 



rather broad, quite smooth above. 



Singapore. 

 In alcohol (Brit. Mus.). Not figured. 



Arms 1, 2, 3, 4. 

 0. Grcenlandicus, Dewh. PI. 32, fig. 36. 



Body ovate-cordate ; with one supra-ocular cirrus ; arms short, 

 acuminate, contorted, unequal; suckers small, elevated. 



Greenland. 



