No. 2310. NEW CEPHALOPODS FROM THE PACIFIC— SASAKI. 169 



Family CIRROTEUTHIDAE Keferstein. 



Genus STAUROTEUTHIS Verrill. 



Plate 23, figs. 2, 3. 



2. STAUROTEUTHIS ALBATROSSI, new species. 



Station 4771 (Bering vSea). One female. Cat. No. 332950, 

 U.S.N.AI. 



Station 5029 (Okhotsk Sea) . One young female. Cat. No. 332951, 

 U.S.N.M. 



Station 5050 (off Kinka-san). One male. Cat. No. 332949, 

 U.S.N.M. 



Station 5084 (off Totomi Prov.). One female. Cat. No. 332948, 

 U.S.N.M. 



Animal very soft, choroidal, flabby, bell-shaped, without clear 

 outward demarkations between head, body, and arms. Body 

 hemispherical, quite rounded behind and never flattened. Mantle 

 opening very narrow, crescentiform, its margin fitting closely around 

 the tubular part of the funnel. Fins transverse-ovate with their an- 

 tero-distal margin rounded, and their posterior margin nearly straight; 

 attached to the dorso-lateral surface of the mantle to a little in front 

 of half their length. Length of fins two-thirds their width. 



Head broader than body. Eyes fuE, diameter of eyeball one- 

 third of the breadth of the head. Tuberculus olfactorius present on 

 the base of the funnel near each angle of the mantle-cavity. Funnel 

 sunk deeply in the mantle-cavity. Um.brella very broad, as thick as 

 the arms; radii about equally long but those between the first arms 

 and between the first and second arms a little longer than those of 

 the other interbrachial spaces, measuring over half the length of these 

 arms. 



Arms soft, greatlj'' elastic, seemingly about uniform, and about 

 twice as long as the head and body taken together. vSuckers 70-90 

 in each arm; uniserial. They begin with a minute sucker at the base 

 of the arms, becoming quickly larger to the six or seventh, then very 

 gradually diminishing in size toward the extremity. Cirri in tv/o 

 opposite series, alternatmg regularly with the suckers, beginning 

 proximally between first and second suckers. Both dorsal arms hec- 

 tocotylized, provided v/ith. three very conspicuous suckers halfway 

 along their length. 



Dorsal cartilage U-shaped; the horns turnmg cephalad and tapering 

 to sharp points; the middle part transverse, forming an obtuse angle 

 in the middle. Section of the cartilage crescentic, the convexity 

 turning anteriorly and internally. Concave posterior surface of each 

 horn separated from that of the middle part by a vertical ridge. 



Inner surfaces of umbrella and arms colored deep purple, which 

 sometimes deepens into quite black, but the suckers are always of 



