7 able illustrating variations in the males , clue mostly to age , and mode of preservation. ( Measurements in inches .) 
A. E, Verrill — North American Cephalopods. 327 
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Loligo Pealei ( £ ) 
Tail to end of longest sessile arms 
Tail to mantle edge, above 
Tail to mantle edge, below 
Tail to insertion of fin 
Tail to eye - 
Tail to base of dorsal arms 
Eye to end of dorsal arms 
Eye to end of 2d pair arms . _ 
Eve to end of 3d pair arms 
Eye to end of ventral arms 
Eve to end <>f tentacular arms ... 
Breadth of head, across eyes .. 
Breadth of head, in front of eyes 
Breadth of body 
Breadth of fins 
Circumference of body 
Length of tentacular club 
Proportions : 
Length of fin to mantle, .1 : 
Breadth of fin to mantle, 1 : 
Breadth of fin to its length, 1 : 
