OCTOPUS. 121 



Arms 2, 4, 3, 1 . ' 



0. SUPERCILIOSUS, Quoy and (laimard. PI. 27, fig. 18. 



Body oval, acuminated behind, slightly granular, long-bearded ; 

 head very distinct, swollen, smooth in the middle, tnberculate 

 over the eyes; arms elongated, angular, conical, nearly equal; 

 cups far apart, large ; beak without lateral wings. White when 

 alive. 



Total length, 100 mill.; length of body. 16 mill.; length of arms 

 2, 77 mill.; 4. 76 mill.; 3, 70 mill.; 1, 66 mill. 



Bass' Strait*, Australia. 



Arm* 4, 3, 2, 1. 



O. LI NI LATI s. Quoy and Uaimard. PI. 26, figs. 15, 16. 



Bod t y short, with scattered tubercles and about twenty promi- 

 nent circles with concave centres ; head short, thick, tubercular ; 

 arms short, conical, nearly equal, with circles on and between 

 them ; cups about fifty ; web very short. White ; the circles 

 blue, paler in the centre . 



Length of body, 8 mill. ; length of arms 4, 21 mill. ; 3, 20 mill. : 



2. 1* mill.; 1. 17 mill. 



New Zealand. 



Well distinguished from all other species by its remarkable 

 coloration. 



d. Body granular, rough. 

 Arms 2, 3, 4, 1 or 3, 2, 4, 1. 

 0. TETRICUS, Gould. PL 35, figs. 46, 47. 



Body large, oblong-ovoid, bilobed ventrally ; head subquadrate, 

 eyes minute ; arms very robust, subquadrate, rather short, with 

 eighty to ninety pairs of cupules ; umbrella large, the membrane 

 passing up the arms two-thirds of their length. Surface rough 

 with warty granulations, especially large and prominent on back 

 of head and upper half of umbrella ; three cirri over the eyes 

 and apparently one below, and three along back of head. 



Length of body, 2'5 in. ; length of arms 2, 16 in. ; 3, 16 in. ; 4, 



13 in.; 1, 12 in. 



Near Sydney, New South Wale*. 

 16 



