34° 



BULLETIN OF THE BUREAU OF FISHERIES. 



deeper above and bear about 20 teeth, which are very long, slender and acute on the upper margin 

 (obtuse and reduced below) and occur in alternation with minute bluntish denticles; none of the teeth 

 in these suckers notably larger than the others. I can not make out any pads or specially differentiated 

 suckers which could be construed as constituting a fixing apparatus. 



Color in alcohol the usual brownish buff dotted with brown chromatophores. 



Measurements of Ommastrephes hawatiensis. 



Number in author's register. 



243 

 (type) 



248 



Total length 



Tip of body to tip of arms 



Length of mantle, dorsal 



Width of mantle near middle 



Width across fins 



Extreme length of fins 



Length of fins at base 



Length of head 



Width of head 



Length of— 



Right dorsal arm 



Right second arm 



Right third arm 



Right ventral arm 



Right tentacle 



Sucker-bearing portion of right tentacle. 



Left tentacle 



Sucker-bearing portion of left tentacle. . . 



mm. 

 285 

 249 

 147 

 31 

 76 

 56 

 50 

 35 

 50 



60 

 76 

 78 

 58 

 118 



mm. 

 283 

 239 

 138 



33 



76 



52 



45- S 



28 



37 



62 



77 



76 



60 

 118 



80 

 119 



81 



mm. 

 I9S 

 179 



107 

 23 



54 

 37 

 33 

 22 

 25 



41 

 5° 



151 

 131 



81 

 21 



42 

 27 



207 

 172 

 105 

 22 



18 

 23 



35 

 42 

 5° 

 41 

 80 



43? 

 74 



43? 



Type. — Catalogue no. 214382, United States National Museum [S. S. B. 243]. 



Type locality. — Albatross station 4177, 253 to 282 fathoms, off Kahuku Point, northwest coast of 

 Oahu, bottom of coral sand and foraminifera, July 25, 1902; one specimen. 

 Distribution. — Hawaiian and Midway Islands (Albatross). 



Specimens of Ommastrephes hawaiiensis Examined. 



Remarks. — This is one of the commonest Hawaiian squids and probably a species of considerable 

 economic value in its food relations to many sea birds and the larger fishes. Because it is so abundant 

 and characteristic a member of the fauna of this region, I have little doubt that the specimens listed 

 by Schauinsland and more recently Pfeffer from Laysan Island as 0. sloanei are the same form. The 

 true O. sloanei, however, appears to be a somewhat different creature, as Gray expressly states that the 

 horny rings of the suckers have the "higher side with regular acute teeth, lower smooth" (italics mine), 

 while the remainder of Gray's diagnosis is so sadly incomplete or even silent regarding what should 

 prove to be features of the highest importance, that there seems every likelihood that other even more 

 striking differences will eventually appear. O. hawaiiensis is undeniably a near relative of the Japanese 

 O. pacificus Steenstrup, considered by many to be a synonym of O. sloanei (cf. Berry 1912b, p. 436-437), 

 but the specimens before me differ consistently in their more rapidly tapering body, slightly shorter 

 fins, much larger and wider head, very much fewer and larger suckers on the sessile arms (especially 



