500 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxm. 



TURBONILLA (PYRGOLAMPROS) BERRYI, new species. 

 Plate XLIV, figs. 10, lOa. 



Shell slender, very regularly acutely conic, bright-chestnut brown, 

 with two narrow spiral bands of a lighter shade; one, the narrower of 

 the two, is at the periphery, the other has its posterior edge at about 

 the middle of the exposed portion between the sutures. Nuclear 

 turns 2i, smooth, depressed, helicoid, not inmiersed, having their 

 axis at a right angle to the axis of the later whorls, their sides pro- 

 jecting slightly beyond the outlines of the spire. Postnuclear whorls 

 very high between the sutures, slightly beveled at the summit and 

 moderately constricted at the periphery, ornamented by well-devel- 

 oped, acute, retractive axial ribs, of which there are about 20 upon 

 the second, 24 upon the fifth, and 26 upon the penultimate turn. 

 These ribs extend quite strongly to the summit, where they feebly 

 crenulate the well-impressed sutures. Periphery and base of the last 

 whorl well rounded, marked by the continuations of the axial ribs, 

 which gradually disappear as they cross the base. Entire surface 

 •marked b}- numerous very line, closel}^ spaced, wav}', spiral striation. 

 Aperture suboval, somewhat effuse anteriorl}^; posterior angle acute; 

 columella oblique, very slightly twisted and weakly revolute at its 

 outer extremity. 



The type (Cat. No. 196223, U.S.N.M.) has 9 post-nuclear whorls 

 and measures: Length S mm., diameter 2.2 mm. It and another 

 specimen in Mr. S. S. Berry's collection were dredged b}' him in 39 

 fathoms on sandy bottom in Monterey Ba3^ 



Another specimen (Cat. No. 196225, U.S.N.M.) was dredged by the 

 Bureau of Fisheries steamer Albatross, at Station 4561, in 9 to 10 

 fathoms, rock}' bottom, with a temperature of 59"^, 2 miles off Santa 

 Cruz Light, Montere}^ Bay, California. 



A fourth shell (Cat. No. 196224, U.S.N.M.) was dredged in 52 

 fathoms, off Catalina Island, California. 



TURBONILLA (PYRGOLAMPROS) LYALLI, new species. 



Plate XLIV, figs. 4, 4a. 



Shell small and slender with strong sculpture, whitish with a broad 

 chestnut band which extends almost halfway over the exposed por- 

 tion of the whorls above the peripher}' and an equal distance anteri- 

 orly over the base below the peripher3\ Nuclear whorls two, closely 

 appressed to each other, forming a polished depressed helicoid spire, 

 which does not extend beyond the outline of the post-nuclear spire, is 

 not at all immersed and has its axis at right angles to the axis of the 

 succeeding turns. Post-nuclear whorls decidedl}^ flattened, moder- 

 ately contracted at the periphery, and slightly shouldered at the 



