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 X XV, 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 g.| B 
Length to tip of lateral arms .........---.--------20- 20 cccene cane ne cnnnne serge nesccancconna 410 |...-.. 
BOENPth to ASS OL APMIS. ose cn occ een ene ncn new cene nec sennasanema ences aannane sn ossennne gi Hel eee 2 
eugsth to base of Mantle; AVOVO)< 2.5 --)5o eal e n'a Senna ome ew eee esp aeonna sb eses wee hie= abe eei & 330 210 
GH UNO! CANO ED ee tean (econ odcnceselscnisinaqun sel eeeeesee = see ee eMa eet ae eee eee eee 127 103 
rsA chon Ganga tin 2 ek eo ocean tee seem ee ee mines Rha = dees ans aa ae ee eae eee 46 18 
Diameter of body sae side PY (Bild fo 
Phameter Ofeye-scc-s--scka- ~~ dese ee cs sorry te 26 
ON PUHOL SO Pall OL BITS sen = «=a asinine nia oneal alain a gine alee aie aie miele oe eer eee 56 63 
Renethiof ventral arma) 23/2.) 135-2 setiie. easel. de See pee es cee 52 38 
Diameter of largest suckers of lateral arms....... 2.2... .02202-.-02--00ececnnseeescncesans- 3 5 
Length of pen.......... © PEGE a ee ees abd STE EE OR ee eee BBO ses cee 
Cranterior lear portion .- 2-0. 2c estes wnecwccpengceneceapeeeedas seeree eee ene eneeeee 180 aoe 
Of posteriondancealate pant’2¢: - 222. 7 222k ew eS ee ee eee eae A503} 25th 
IBTeai th: Of ANTOTIOL POTION, «).00p2 eae ecient oc aeadinae «-0204g= sone s eo ee cE aeeeecee eee ou] Saeetas 
Brppith ofilaneeolatiopartits--u. 2-2 2220s. ee Meee Ae ee eS 80.28. 
A isthe specimen described above; B 3s the specimen described by Steenstrup from Greenland. 
The latter had the dorsal arms 40™ long; 2d pair 50™™ ; tentacular arms 68 and 70™", 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 XXYV, 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 (2, xa, 
xu’) are symmetrically developed on the two sides; these are swollen, 
voluminous organs, composed of great numbers of internal lamelle; 
the anterior ones («’) 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. 
