296 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 58. 



developed eyestalks, and the fact that the first and second arm pairs 

 are distinctly shorter than the third and fourth. The arms and tenta- 

 cles are well developed, the latter very long, with very minute 

 suckers in four rows on the distal portion. The mouth region is 

 large and strongly protruding. 



Type. — Teuthowenia (Ascoteuthis) corona, new species. 



TEUTHOWENIA (ASCOTEUTHIS) CORONA, new species. 



Plate 16, fig. 7. 



Diagnosis. — A moderate-sized cranchiid with an inflated, cask- 

 shaped or bag-shaped body, tapering rapidly to a sharp point be- 

 tween and slightly past the small, more or less semicircular fins. 

 Texture of mantle membranous, fairly tough. 



Head inconspicuous, pushing out in front as a stout, columnar 

 snout. Eyes large, rounded, their stalks stout and well developed, 

 when entire considerably longer than the funnel; optic ganglia 

 enormous; ocular photophores difficult to distinguish in material at 

 hand. Funnel large, ^vith a wide aperture; when extended reaching 

 barely past the base of the arms. 



Arms well developed, keeled, their formula of relative length mani- 

 festly 3, 4, 2, 1 ; third pair distinctly largest and longest, being about 

 one-fifth as long as the mantle. Suckers small, two-rowed. Um- 

 brella wanting. 



Tentacles very long; club distinctly keeled, otherwise not ex- 

 panded, and bearing four rows of very minute suckers, which con- 

 tinue for an uncertain distance down the stalk. 



Buccal region strongly raised and protruding between the arms 

 like a continuation of the snout. 



Total length, about 57 mm.; length of mantle (doi-sal), 27 mm.; 

 length of fins, 4 mm. 



Type.—Cat. No. 338695, U.S.N.M. [S.S.B.618]. 



Type locality. —100-0 m., station 10173, latitude 32° 27' N., longi- 

 tude 68° 22' W.; February 4, 1914. 



Remarks. — This interesting cranchiid is evidently nearer to 

 Teuthowenia than it is to any of the other described genera, the 

 differences so far noticed being of such a nature that it is here de- 

 scribed as representing a new subgenus of the older group. It has, 

 however, a certain aspect of its own, recalling Chun's remarkable 

 Crystalloteuthis in some respects, while the fins are so entirely different 

 from those of the typical Teuthowenia both in shape and manner of 

 attachment to the mantle that it is possible that Ascoteuthis some day 

 will have to be accorded full generic standing. Teuthowenia s. s. is 

 likewise represented in the Bache collections, making possible direct 

 comparison of the two. 



