*4. E. T ' — _Y< th A 
209 
diameter, Y56 to 2 --5 4 i 74 to 1 iuc-h i : diameter of the -mall suckers 
of the outside rows. l - 02 to 1 "22® 4 tc 48 of au inch . Mr. Har- 
vey afterwards sent to me a full series o: 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 enlarge! sucker-hearing portion being 27 inches: the 
large suckers occupied 12 inches; the terminal part hearing small 
suckers. 9 inches : circumference of slender portion, 3*5 to 4*25 inches : 
of larges: part. 6 inches: breadth of face, among lar^e 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 homy rims, and therefore their size and form,! 
were considerably smaller thau the dimensions previously given. 
Comparing all these dimensions with those of the Logic 
men. and calculating the proportions as nearly as possible, it follows 
that this specimen was very nearly one-thir i larger than the latter, hut 
the large suckers appear to have been relatively smaller, for they 
were hardly one-twelfth larger thau in the Logie Bay specimen. As 
the relative size of the large suckers is a good sexual character in cer- 
tain species of s lids, it is possible that this .Inference may he 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 Bouavb: Bay specimen 
(Xo. 4, see p. 194). In form. size, and proportions the jaws resemble 
those of the specimen iXo. 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 
ntly partially repaired them, so as to study them more fially. sc 
table under A. /*s). The total length of the upper mandible 
was about 105-“. Tip of beak to notch 16 ” : notch to end of proper 
cutting «. _ e. 75 r ---. The lower mandible iPlate XXY. tigs. 5, 
5'./ 1 sh.-ws both sides of the rostrum and ahv. The notch and tooth 
are well-marked, and the tooth in frout of it is narrower aud much 
more elevated on one side than on the other. It is. therefore, quite 
arible that it belongs I A. prmcep*. The sockets Plat W 1. 
figs. 5 and 6) had been dried, and have lost their true form, but 
the marginal rings are perfect, aud only 23*4 - ("92 of an inch) in 
Trass. Goss. Ac.u>., Vol V. 27 Jaxtabt, 1SS0. 
