120 BULLETIN OF THE 



body 8 inches in diameter had the arms 16 feet long. They shrank much in 

 alcohol." 



Mejisun'meiits of Octopus imndatus Gabb, in onlUimcfers. 



Nat. Mus., No. 33076 cf. M. C. Z., No. C2 (f. 



Length of body to eye, .... 



From edge of mantle to tip of tail (below), 



Breadth of l)ody, 



Breadth of head, at eyes, 

 Breadth of liead, at base of arms. 

 Diameter of eyeball, .... 

 Eye to web between ventral arms, 

 Eye to web between 3d ajid 4th arms, 

 Eye to web between 2d and 3d, . . 

 Eye to web between 1st and 2d, 

 Mouth to edge of web between dorsal arms. 

 Mouth to edge of web between 1st and 2d, 

 Month to edge of web between 2d and 3d, . 

 Mouth to edge of web between 3d and 4th, 

 ]\Iouth to edge of web lietween ventral arms, 

 Length of siphon, lower side, . 



Diameter of siphon, near base. 

 Diameter of siphon, at tip, . . . 



Length of dorsal arms (1st pair), 



Length of lateral arms (2d pair), 



Length of lateral arms (3d pair). 



Length of ventral arms (4th pair), 



Breadth of 1st pair* of arms. 



Breadth of 2d pair of arms, 



Breadth of 3d pair of arms, 



Breadth of 4th pair of arms, 



Diameter of largest suckers, 2d and 3d pairs of arms, 20 to 25.5 



Diameter of central pit, .... 



Diameter of largest suckers on doi'sal arms, . 



Diameter of largest suckers on ventral arms. 



Length of terminal organ on hectocotylized arm, 



Diameter at base, . . . 



This species has a wide range along the Pacific coast. It extends from San 

 Francisco to Sitka, Alaska. On the coast of Alaska it is smoked and dried by 

 the Indians as an article of food. In the markets of San Francisco it is often 

 sold fresh, to the French and other foreigners, for food. 



