96 BULLETIN OF THE 



Actseon Danaida n. s. 



Shell elongated, moderately pointed, polished, white, and ha\ang about six 

 whorls ; spiral sculpture of (on the spire) six, or (on the last whorl) over 

 twenty-five punctate grooves, more crowded anteriorly, but with two or three 

 coarser than the rest, just in advance of the suture ; between these original 

 grooves in the latter half of the last whorl intercalary single or double grooves 

 appear, which are seldom quite as deep as the originals, and at first are not 

 punctate, but at last, and especially near the anterior extreme of the shell, 

 become nearly as well marked as the original series ; transverse sculpture con- 

 sisting only of lines of growth, by a peculiar thickening of certain of which 

 when they cross the grooves the punctate appearance is produced ; nucleus 

 eroded, minute ; suture appressed, distinct, but the thin appressed anterior 

 margin seems peculiarly liable to erosion, which, in some cases takes place so 

 as to produce the appearance of a channelled suture ; whorls slightly rounded ; 

 outer lip thin, simple, somewhat produced in the middle, passing impercep- 

 tibly into the thin twisted pillar, which is slightly reflected, and bears one 

 inconspicuous, very oblique fold ; body with a thin layer of callus ; aperture 

 rounded in front, rather narrow, pointed behind ; no umbilical chink in this 

 or any of the preceding species. Lon. of shell, 11.0 ; of last whorl, 7.75; of 

 aperture, 6.25. Max. lat. of shell, 5.25 ; of aperture, 3.0 mm. 



Station 43, 339 fms. 



An elegant and excessively punctate species, which looks as if it might have 

 been pelted by a shower of little coins. 



Actaeon perforatiSs n. s. 



Shell small, pointed, waxen white, with a narrow opaque yellowish band in 

 advance of the suture, composed of about six whorls, and with a distinct um- 

 bilical perforation ; nucleus eroded, small ; spire with about six, or (on the 

 last whorl) eighteen strong and very regularly and distinctly punctate grooves, 

 the punctations at the rate (near the aperture) of about six to a millimeter, the 

 grooves a little more crowded anteriorly and distant posteriorly, the interspaces 

 everywhere wider than the grooves and with no intercalary grooves or striae 

 whatever ; transverse sculpture of faint lines of growth ; aperture rounded in 

 front, pointed behind ; outer lip thin, simple, arched, and continuous with the 

 reflected thin pillar lip, upon which a fold can hardly be made out ; body with 

 a slight glaze ; umbilical perforation straight, -with smooth walls, apparently 

 very deep, and about 0.25 mm. in diameter. Lon. of shell, 7.75 ; of last whorl, 

 6.0 ; of aperture, 4.0. Max. lat. of shell, 4.62 ; of aperture, 2.0 mm. 



Station 2, 805 fms. 



The anterior part of the last whorl being a little larger than any part pos- 

 terior to it, this shell has a somewhat pyriform appearance. 



Sept. 26, 1881. 



