298 BULLETIN OF THE BUREAU OF FISHERIES. 



on the inner surface of the mantle. Funnel groove with a foveola. Arms stout, angled, with marginal 

 membranes; suckers in two rows, the homy rings strongly denticulate with nearly equal teeth, or a 

 single median tooth enlarged. Terminal portion of left ventral arm hectocotylized. Tentacles long, 

 bearing suckers for more than half their length; fixing apparatus poorly developed, comprising only 

 a few pads and small suckers. Gladius narrow and elongate, lacking the broad wing-like lateral expan- 

 sions of the Loliginidoe. 



Type, Loligo sagittata var. a Lamarck, lygg = Ominasireplies sagittaius (Lamarck) d'Orbigny; a 

 widely distributed species, the typical form of which is from the Atlantic. 



Ommastrephes sagittatus (Lamarck, 1799) d'Orbigny. 

 Loligo sagiilala Lamarck, 1799, p. 13 (fide Hoyle). 



Ommastrephes sagittatus Tryon, 1879, p. 177. pi. 78. fig. 341 (after Forbes and Hanley), 345 (after V^rany); pi. 79, fig. 344 

 (after d'Orbigny), 346 (after V^rany). 

 Whiteaves, 1S87, p. 134 (mere note), 

 Taylor, 1895, p, 99 (mere note). 



Mention is here made of O. sagittatus on account of the statement by Whiteaves that three specimens 

 of a squid collected at Victoria, British Columbia, by Dawson "correspond very well with Trj-on's 

 description and figures of this species in the first volume of his 'Manual of Conchology. ' " The WTiter 

 has personally encountered no specimens from the west coast of America which belong to this species 

 orareevenreferable to the genus, but that is not proof that it may not well be expected to occur, espe- 

 cially since the same form , or rather its variety or subspecies sloanei Gray (pacificus Steenstrup), is known 

 to be abimdant in Japanese waters. 



Genus STHENOTEUTHIS Verrill, 1880 



Sthenoteulhis Verrill, 1880, p. 222. 

 OmniatostTephes Steenstrup. 1880. 

 Stenoteuthis Pfeffer, 1900, p. 179, 180. 



Very similar to Ommastrephes in almost every way, but the sucker-bearing area includes less than 

 one-half the total length of the tentacles, and there is a well-developed fixing apparatus on the carpus 

 which includes both pads and a number of small suckers with smooth homy rings. The larger suckers 

 on the club itself are strongly toothed, one tooth in each quadrant being considerably greater than the 

 others. 



From the nearly related Dosidicus the genus is to be distinguished by its normal arm tips and the 

 fact that the strongly developed swimming membranes are on none of the arms exceeded by the sup- 

 porting lappets (trabeculae, Qtterbriuken). 



The species of Sthenoieuthis and Dosidicus, together with Ommastrephes s. s., Symplectoteuthis , 

 Illex, Hyatoteuthis, and Todaropsis, were formerly considered to rank under the all-embracing Ommastre- 

 phes, but while undoubtedly involved in extremely close relationship with one another, all these groups 

 are now dealt with by most authorities as separate entities. I have felt botind to follow the prevailing 

 opinion. 



Type, Architeuthis megaptera Verrill, 1878, a species of the New England region. Doctor Pfeffer 

 considers it to be identical with the Eiu-opean Sthenoieuthis pleropus (Steenstrup, 1856). 



Sthenoteuthis bartramii (LeSueur, 1821) Verrill. (PI. xlvii; pi. l, fig. 4-5.) 



The references belonging to S. bartramii sinuosa Lonnberg, S. caroli (Furtado), and Loligo cequipodj 

 Riippell, respectively included in the synonymy of 5. bartramii by Pfeffer and Jatta, are omitted here. 

 Otherwise the following bibliography is made as complete as the literatine at my disposal will allow. 



Loligo Bartramii LeSueur, 1821, p. 90, pi. vu. 



Ferussac, 1823, p. 67, no. 12 (fide d'Orbigny). 

 sagittata Blainville, 1823, p. 140 (fide d'Orbigny). 

 Bartramii Blainville, 1823, p. 141 (after LeSueur). 

 sagittata Blainville, 1823a, p. 128 (fide d'Orbigny). 

 Bartramii Blainville, 1823a, p. 129 (after LeSueur). Ferussac, in d'Orbigny 1S26, p. 63. 



