A. E. Yerrill — North American Cephalopods. 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 ; cii'cumference 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 ^vhile 

 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 Logic 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 Logic Bay specimen. As 

 the relative size of the large suckers is a good sexual character in cer- 

 tain sjlecies of squids, it is possible that this difierence 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 Mly, (see 

 table nnder A. 2)rmceps). The total length of the iipper mandible 

 was about 105'"'". Tip of beak to notch 16""" ; notch to end of proper 

 cutting edge of alse, 75'"'". The lower mandible (Plate XXV, figs. 5, 

 5a) shows both sides of the rostrum and alse. 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. pi'inceps. 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 Y. 27 January, 1880. 



