REPORT OF COMMISSIONER OF FISH AND FISHERIES. [ 128 ] 
becoming involute, so as to form a very long, slender, acute, terminal, 
hollow cone, extending to the tip of the tail. The anterior end is ob¬ 
tusely rounded and thin; a short distance from the anterior end there 
are two thin lateral processes, directed forward, to which the commis¬ 
sural muscles were attached (Plate XXV, figure 2). 
Color of entire body, siphon, and caudal fin dark brown, thickly 
covered with large, roundish, unequal spots of darker brown and paler 
brown, intermixed; head, eyes, arms, and web dark brownish purple, 
with crowded crhomatophores; suckers yellowish. 
Total length, to end of lateral arms, 16 inches; to dorsal edge of 
mantle, 13 inches; length of head, 1 inch; diameter of eye, 1 inch; 
length of caudal fin, 5 inches; its breadth, 1.80 inches.* 
Measurements (in millimeters). 
A?. 
B, 
410 
354 
330 
210 
127 
103 
46 
13 
57 
25 
26 
56 
63 
52 
38 
3 
5 
330 
Of anterior linear portion. 
180 
Of posterior lanceolate part. 
150 
Breadth of anterior portion. 
3 
Breadth of lanceolate part. 
30 
A is the specimen described above; B is the specimen described by Steenstrup from Greenland. 
The latter bad the dorsal arms 40 mm long; 2d pair 50 mm ; tentacular arms 68 and 70 mnl , respectively. The 
larger size of the suckers of the latter may indicate that it was a male. 
Our specimen was taken near the northern edge of the Gulf Stream, 
West long. 55°, by Thomas Lee, of the schooner “ Wm. H. Oaks,” Janu¬ 
ary, 1879, (and by him presented to the U. S. Fish Commission. Baffin’s 
Bay, Northern Greenland (Steenstrup). 
Notes on the visceral anatomy. 
Plate XXV, figure 1. 
The only specimen of this species obtained had the internal organs 
considerably injured, but the anatomy is so unlike that of the more 
common genera of squids that it seemed to me desirable to figure such 
parts as are preserved. 
This specimen is a female, and the large nidamental glands (#', xx, 
xx') are symmetrically developed on the two sides; these are swollen, 
voluminous organs, composed of great numbers of internal lamelhc; 
the anterior ones (x') occupy the region around and in front of the, 
* Some of these measurements are slightly larger than those originally given. This 
is due to the fact that the specimen has been kept, since first received, in somewhat 
weaker alcohol, and has become more relaxed in consequence of this, combined with 
repeated handling. 
