212 " ENDEAVOUR " SCIENTIFIC RESULTS. 



simple crest extending up from the ventre -lateral angle, not 

 quite meeting the one first described. Eyes large,* the 

 circular or oval lid opening with a conspicuous sinus in front. 



Funnel large, broad, blunt at the apex, and notably swollen 

 ventrally. The tip does not quite attain a level with the 

 hinder margin of the eye-opening. Interior of funnel with a 

 large flap-like valve on the dorsal wall near the apex. Funnel 

 Organ (PI. Ix., fig. 7) of the usual triplicate form, a dorso- 

 median A-shaped organ and an elongate -oval vent ro -lateral 

 pad on each side. The organ of the specimen dissected differs 

 from that of E. chunii, as figured by Ishikawa, in that the 

 lateral pads are notably longer and narrower, while each arm 

 of the dorsal pad bears a conspicuous elongate ridge along the 

 middle of the anterior moiety. These ridges may possibly be 

 an incident of the preservation, but for structures so produced 

 the symmetry is unusual. 



Arms graceful, moderately long, their formula of relative 

 length 4, 3, 2, 1, or 4, 3=2, 1 ; the dorsal pair easily the 

 shortest, thence increasing to the ventral pair, which are 

 distinctly the longest, attaining somewhat less than two-thirds 

 the mantle length. Dorsal arms with only traces of an outer 

 carination near their tips ; second pair with the carination 

 developed into a narrow membranous keel, traceable along 

 the distal half of the arm ; third arms compressed, bearing a 

 strong, broad keel all along their outer angles ; ventral pair 

 "with the tentacular sheath continuing as a broad mem- 

 branous fold along the ventral outer angles 

 of the arms to their tips. All the arms 

 armed for the greater part of their length 

 with two regularly alternating series of 

 well-spaced, medium-sized hooks, suc- 

 ceeded at the extreme tips of the arms 

 by minute suckers (PL Ix., fig. 3), the 

 basal one-sixth or so of the arms devoid 

 0.1 mm. of either hooks or suckers ; number of 

 Fig. 1. — Enoplo- hooks varying on the different arms from 



tevthis galaxias i jg ^^ j^ * -^.^ ^^ ^j^^ ^ ^^^^ j^l to 15 in 



14d2, sucker 01 third ,, 71 ,i 1 t,y -p .^ 



pair from base on "^^^ o ' these sexual differences, if they are 



right second arm ; to be regarded as such, being set forth in 



camera drawing from detail in Table IV. ; distal 4-5 mm. of the 



a mount in balsam. ^rms occupied by suckers, of which 6-10 



*Tn one of the specimens the right eye and lid opening are conspicu- 

 ously larger than those of the opposite side, and while none of the other 

 specimens show this feature to so great degree, in all the right eye and aperture 

 are somewhat the larger. AVhether this is accidental or indicates a condition 

 approaching that characterising the Histioteuthidoe, I am unable to state 

 Jrom the present material. 



