3 20 



BULLETIN OF THE BUREAU OF FISHERIES. 



Head very large, due to the large rounded eyes; broader than the body; flattened above, much 

 excavated beneath. Eyes prominent, with large white pupils and a very deep ventral lid fold. Fun- 

 nel very stout and thick; flattened; outline bluntly conical; extremity rounded; aperture small. 



Sessile arms short, stout, thick; unequal, the order of length 3, 4, 2, 1; dorsal pair shortest, third 

 pair longest,* but the ventral almost as long as the third and even longer if measured along the cleft 

 separating their inner ventral margins; connected at base by a fleshy umbrella, best developed between 

 the dorsal arms, between these and the second pair, and between the third pair and the ventral pair; 

 between the second and third arms the web is very short, and is totally lacking between the arms of the 

 ventral pair, which are divided from one another by a deep cleft extending as far back as the tip of the 



funnel; second arms rounded, the remainder with a distinct 

 keel along their outer margins distal to the webbed portion. 

 Suckers small, spherical, oblique; in two rows extending 

 nearly or quite to the tips of the third arms, but leaving the 

 final distal extremities of all the other arms bare; this cir- 

 cumstance becomes especially conspicuous in the case of the 

 second pair, where the distal portion of the arm is not only 

 devoid of suckers, but is minutely ridged transversely and 

 exhibits a strong tendency to recoil upon itself (pi. L, fig. 5); 

 horny rings of suckers smooth. 



Tentacles rather short, stout, angled, slightly tapering, 

 with a flattened and somewhat grooved out inner surface. 

 Club small, of considerably less diameter than the stalk; 

 inner aspect with a velvety appearance, due to the great 

 multitude of exceedingly minute suckers with which it is 

 armed (pi. L, fig. 3). 



Surface everywhere smooth. 



Color of the living animal unknown; in alcohol a brownish 

 buff; fins and arm tips unmarked; dorsum and head heavily 

 dotted and clouded with the blackish chromatophores which 

 appear as open reticulations about the bases of the fins; 

 ventral surface of mantle less densely pigmented, except for 

 a shield-shaped area occupying the ventral lobe and extend- 

 ing back therefrom, over which the chromatophores are very 

 numerous and distinct, being apparently of two main sizes, 

 somewhat as noted in the case of Stoloteuthis iris; the mar- 

 ginal delimitation of this area is by no means so distinct and 

 conspicuous as the corresponding region of Stoloteuthis and was hence overlooked by the artist when 

 the first drawings were made (pi. I,, fig. 7). Chromatophores appear also upon the ventral aspect of the 

 head and funnel, even extending upon the dorsal surface of the latter, but are not to be distinguished 

 upon the tentacles. 



Gladius apparently wanting. 



Measurements of Heteroteuthts hawaiiensis. 



Fig. 30. — Hcleroleuthis hawaiiensis, ventral view 

 of type [30], X iM. Drawn by R. L. Hudson. 



Total length, exclusive of tentacles 38 



Medio-dorsal length of mantle 22 



Medio-ventral length of mantle 27 



Width of body 14 



Width across fins 32.5 



Extreme length of fins 17 



Length of fins at base of attachment 9. 5 



Anterior mantle margin to base of dorsal arms 8. 5 



» Owing to an inadvertence the original 



Width between eyes 10 



Length of — 



Dorsal arms 8 



Second arms 9 



Third arms 10 



Ventral arms 9-12 



Tentacle 21 



description states the reverse to be true. 



