MUSEUM OF COMPARATIVE 300LOGY. 371 



Animal with stout rounded muzzle, short stout tentacles, large black eyes, 

 a very large anterior epipodial lobe, two lateral cirri, and two or three small 

 ones from under the operculum. The foot is bluntly rounded before and be- 

 hind. The color of the external soft parts is uniform straw-color. 



Habitat. U. S. Fish Commission Station 2594, of 1885, twenty miles 

 southeast from Cape Hatteras, N. C, in 120 fms., sand, bottom temperature 

 58°.0. A fragment at Station 2601, thirty-six miles south half west from 

 Hatteras, in 107 fms., sand. Both collected by the U. S. Fish Commission 

 Steamer Albatross. 



This is altogether the finest American species, and cannot be confounded 

 with any other now known. 



Calliostoma (Eutrochus) Benedicti n. s. 



Plate XXXII. Fig. 7. 



Shell depressed, with an acute apex and slightly concave outline, umbilicated, 

 polished; straw-colored, lineated with red brown and pale pink; base convex, 

 slightly flattened, periphery rounded; nucleus minute, apparently dextral; 

 whorls seven or more; umbilicus deep and narrow, with flexuous walls exca- 

 vated near the carina, which is marginated with an opaque white band; spiral 

 sculpture beginning at the umbilicus ; outside the carina, which is simple, two 

 strong broad subnodulous spirals separated by a deep line, then fourteen or 

 more equal smooth flattish spirals with narrower interspaces and obsolete spiral 

 striulae here and there ; then a smooth or slightly striate peripheral space ; all 

 the preceding straw-color. Above the periphery two pink and one straw-col- 

 ored large smooth and rounded spirals, one smaller smooth one, then three large 

 and two intercalary smaller nodulous spirals separated from the suture by a 

 narrow smooth space. The interspaces are brown, the elevations straw-color. 

 The early whorls have two or three smooth and one or two nodulous spirals, 

 the former remain constant with growth, the latter increase in- number. Ea- 

 diating sculpture of flexuous incremental lines, hardly visible. Aperture 

 rounded squarish, columella white, thin, concave, a small notch at its base. 

 Alt. of base, 7.5; of spire, 6.5; total, 14 mm. Max. lat. of base, 18.0; of mouth, 

 8.5. Apical angle about 90°. 



Operculum yellow, multispiral, translucent, polished. Type specimen not 

 full grown. 



Habitat. Off Cape Lookout, N. Carolina, in about 200 fms., U. S. Fish 

 Commission. 



This is a very handsome species, recalling the var. Psyche of Calliostoma 

 Bairdii, from which it is easily distinguished by its umbilicus and sculpture. 



It is named in honor of Mr. J. S. Benedict, formerly naturalist of the Albatross 

 party, who rescued it from a pilfering and aesthetic sailor, by whose theft the 

 exact station number was lost. It was living when obtained. The soft parts 

 as preserved are whitish, with very large black eyes. The foot is long, narrow, 



