

VO l889. !I 'l PROCEEDINGS OF THE NATIONAL MUSEUM. 297 



pillar, behind which again are four or live widely separated similar 

 grooves, the posterior near the periphery; between them and near the 

 periphery, as well as behind it, are no grooves or but faint spiral obso- 

 lete striae; suture distiuct but not channeled; last whorl much the 

 largest; outer lip straight, simple, slightly thickened; body with a 

 moderate deposit of callus; pillar as in A. curtulus, but less strongly 

 twisted and with the plait and recurved margin subequal; although 

 the margin is continuous, there is a rather deep sulcus behind the ante- 

 rior end of the pillar, corresponding to a groove, which bounds the col- 

 umella callus; longitude of shell, 5; latitude, 3; longitude of aperture, 



3 mm # 



Hab. — Near the Galapagos Islands, in the Pacific, in 812 fathoms, 

 ooze; temperature 3S°.4 F. 



This shell and the last species seem to stand in an intermediate posi- 

 tion between Actceon of the typical kind aud Cinulia. If the outer lip 

 should eventually become much thickened, of which, however, there is 

 no satisfactory evidence, these shells might be referred to Cinulia. If 

 the A. curtulus recalls Pedipes mirabilis Muhlfeldtin its form and sculp- 

 ture, A. peHonicus recalls P. elongatus Dall. 



Family TORKATINID.F. 



Genus UTRICULUS Brown. 



Utriculus domitus Dall. 



Collected at Station 2751, south from St. Kitts, in 087 fathoms, ooze; 

 temperature, 39°.9 F % 



Family SCAPHANDBID.E. 



Genus SCAPHANDER Mont foil. 



Scaphander nobilis Verrill. 



Dredged at Station 2754, east from Tobago, in 880 fathoms, ooze; 

 temperature 37°.9 F. It extends northward to Delaware Bay, in deep 

 water. 



Scaphander interruptus sp. nov. 



Plate xii. Fig 12. 



Shell in many respects resembling 8. lignarius and best described by 

 comparison with it; shell of a livid or grayish straw-color, not the yel- 

 low or reddish brown of lignarius; the tip of the spire is smaller in pro- 

 portion and more pointed ; the axis is pervious as in lignarius, but the 

 perforation is more cylindrical and does not become funnel-shaped as 

 the shell enlarges to maturity ; the shell averages more slender ; the 

 callus on the body is not reflected so far and especially on the anterior 

 part of the pillar; the grooves of the surface in 8. lignarius, without 



