A, EF. Verrill—North American Cephatopods. 209 
diameter, 1°86 to 2°54°™ (-74 to 1 inch) ; diameter of the small suckers 
of the outside rows, 1:02 to 1:22™ (-40 to -48 of an inch). Mr. Har- 
vey afterwards sent to me a full series of measurements of this arm, 
as then preserved. It had contracted excessively in the alcohol, and 
was only 13 feet one inch in length (instead of 19 feet, its original 
length), the enlarged sucker-bearing portion being 27 inches; the 
large suckers occupied 12 inches; the terminal part bearing small 
suckers, 9 inches ; circumference of slender portion, 3°5 to 4°25 inches; 
of largest part, 6 inches; breadth of face, among large suckers, 2°5 
inches ; from face to back, 1°62 inches; diameter of largest suckers 
outside, °75 of an inch; aperture, 63 of an inch. It will be evident 
from these measurements, when compared with those made while 
fresh and from the photograph, that the shrinkage had been chiefly 
in length, the thickness remaining about the same, but the suckers 
(which had lost their horny rims, and therefore their size and form,) 
were considerably smaller than the dimensions previously given. 
Comparing all these dimensions with those of the Logie Bay speci- 
men, and calculating the proportions as nearly as possible, it follows 
that this specimen was very nearly one-third larger than the latter, but 
the large suckers appear to have been relatively smaller, for they 
were hardly one-twelfth larger than in the Logie Bay specimen. As 
the relative size of the large suckers is a good sexual character in cer- 
tain species of squids, it is possible that this difference may be a sex- 
ual one, in this case. 
To this species I formerly referred the jaws and two large suckers 
from the ‘club’ of the tentacular-arms of the Bonavista Bay specimen 
(No. 4, see p. 194). In form, size, and proportions the jaws resemble 
those of the specimen (No. 5), described above, so that the size of 
these two individuals must have been about the same. These jaws 
had been dried and were very badly broken when received, so that 
only part of their dimensions could be ascertained, at first, but I have 
recently partially repaired them, so as to study them more fully, (see 
table under A. princeps). The total length of the upper mandible 
was about 105", Tip of beak to notch 16""; notch to end of proper 
cutting edge of ale, 75™". The lower mandible (Plate XXV, figs. 5, 
5a) shows both sides of the rostrum and ale. The notch and tooth 
are well-marked, and the tooth in front of it is narrower and much 
more elevated on one side than on the other. It is, therefore, quite 
possible that it belongs to A. princeps. The suckers (Plate XVI, 
figs. 5 and 6) had been dried, and have lost their true form, but 
the marginal rings are perfect, and only 23-4"™ (-92 of an inch) in 
TRANS. Conn. ACAD., VOL V. 20 : JANUARY, 1880, 
