332 



BULLETIN OF THE BUREAU OF FISHERIES. 



Material examined. — The single specimen was taken from the surface at Albatross station 3926, 

 latitude 21 13' N., longitude 158° 41/ W., between Honolulu and Laysan Island [S. S. B. 276J. 



Remarks. — This specimen is clearly immature and withal very poorly preserved. The tentacles 

 are missing and the integument disfigured with a whitish deposit, badly obliterating some of the impor- 

 tant features. It is undoubtedly a young Abraliopsis, however, and is very close to the stage described 

 by Pfeffer as Micrabralia. 



Subfamily PYROTEUTHIN^ Pfeffer 1912. 



Pterygiomor price Chun 1908, p. 86. 

 Pterygiomor phaz Chun 1910. p. 58, 10S. 

 PyroteuthiruB Pfeffer 1912, p. 124, 189, 773. 



Body sharply pointed posteriorly, notably exceeding the large round separate fins. Buccal mem- 

 brane joined with the basal web of the arms; dorsal lappets close together and coherent at base. Photo- 

 genic organs lacking from the outer integument, but numerous and polymorphic 

 on the eyeball as well as within the pallial chamber. 



Genus PTERYGIOTEDTHIS H. Fischer 1895. 



Pterygioteuthis H. Fischer 1895. p. 205. 



Pterygioteuthis Pfeffer 1900, p. 165. 166. 



Pterygioteuthis Hoyle 1904, p. 39. 



Pterygioteuthis Chun 1910, p. 58. 108. 



Pyroleutkis {Pterygioteuthis) Pfeffer 1912, p. 193. 204. 774. 



Ventral arms naked or with suckers only; remaining arms with a few of the 

 middle suckers transformed to hooks. Tentacle club with four rows of suckers 

 and no hooks; fixing apparatus composed of a very few suckers and pads. Left 

 ventral arm hectocotylized, and furnished with a conspicuous glandular fold or 

 swelling. 



Type. — Pterygioteuthis Giardi Fischer 1895 (monotypic); described from off 

 the coast of Morocco. 



Pfeffer has placed this genus under Pyroteuthis Hoyle 1904 as a subgroup; 

 but even should this arrangement be accepted as zoologically correct, the name 

 Pterygioteuthis has nine years' priority and should therefore be given precedence. 



Pterygioteuthis microlampas Berry 1913. (PI. m, fig. 1-3.) 



Pterygioteuthis giardi Berry 1909. p. 419 (locality record only). 

 Pterygioteuthis microlampas Berry 1913, p. 566. 



i 



Fig. 35. — Pterygioteuthis mi- 

 crolampas, ventral view 

 of female [278], X 2. 

 Drawn by R. L. Hudson. 



Animal small, fragile, with a cylindro-conical body terminating posteriorly 

 in a sharp spinelike process, which extends between the fins and well past them; 

 mantle about one-third as wide as long. Fins rather large, prominent, longer 

 than broad, circular, not adnate, attached along their inner margins for less than 

 half their total length; anterior and posterior lobes about equal. 

 Head large, rounded, but little narrower than the mantle. Eyes large, prominent. Funnel large, 

 broadly conical in outline ; aperture small. 



Arms short, nearly of a length, their order of relative length 3, 2=4, 1 ; outwardly keeled by a very 

 fragile trabeculated membrane (most conspicuous on the arms of the third pair). Dorsal arms bare 

 for the basal one-fourth of their length; at this point occur two very minute somewhat distant suckers, 

 succeeded distally by six pairs of much larger suckers alternating in two series; the ventral members 

 of the succeeding three pairs are transformed into hooks, after which the remaining suckers (about 

 eight in number) steadily diminish in size to the extremity of the arm, there being 14 pairs of suckers 

 or their homologues on the entire arm; distally a wide delicate trabeculated membrane (mostly torn 

 away) occupies the ventral margin of the sucker-bearing area; the larger suckers have about four large 

 long bluntly squarish teeth along the upper border of their horny rings. Arms of second and third pairs 

 essentially similar in all respects to the dorsal arms, although larger and stouter. Ventral arms squarish, 



