158 PROCEEDINGS OF THE ACADEMY OF [1899. 



Not Chemnitzia elegans d'Orbigny, 1853, nor Odostomia elegans A. 

 Adams, 1860, nor 0. elegans Monterosato, 1869. 



Shell of good size, amber-colored, semitrausparent, lustrous. 

 Apex broken, remaining whorls 8 ; the upper ones are somewhat 

 eroded, but the last one is well-rounded. Transverse ribs 22, 

 rounded, straight, nearly perpendicular, separated by about 

 equally \yide shallow spaces which are crossed by 5 equal, wqII- 

 separated, incised, spiral lines, and 2 (the 1st and 5th) veiy much 

 finer ones. Base well-rounded, cut by 6 distinct, widely, unevenly 

 spaced, incised, spiral lines. Aperture elongated; pillar-lip 

 straight, thickened, slightly reflected below. 



Length, 6 mm. ; diameter, 1|- mm. ; length of aperture, 1^ 

 mm. 



One specimen (No. 60,125) off Micco, Indian river, Fla., in 

 two fathoms, mud. This is considerably larger than any of the 

 northern examples of elegans Verrill, but so closely agrees with 

 them in form that with a sufficient series it may prove to be a 

 southern variety. 



As the Chemnitzia elegans d'Orbigny (1853) is not a Tiirbonilla 

 (in its peculiar thickened base, at which the transverse ribs termi- 

 nate abruptly, it shows its close relation to Cerithium turrita Stearns 

 from Florida), and Odostomia elegans A. Adams (1860) is spirally 

 ornamented, and 0. elegans Monterosato (1869) is smooth. Prof. 

 Verrill's name need not be changed. 



Turbonillasp.? 



A young specimen (No. 79,006) from off Micco, Indian river, 

 Fla., is amber-colored, semitrausparent and lustrous, rather stout, 

 with distinct suture. The upper portion is wanting, the 6 remain- 

 ing, somewhat flattened whorls are crossed by about 24, narrow, 

 low, slightly oblique ribs inclined to the right, separated by wider, 

 shallow spaces. These are crossed by about 8 (6 about equal and 

 2 more indistinct) unequal and unevenly spaced, incised, spiral 

 lines. Base well-rounded, cut by numerous (about 15) fine, 

 wavy, incised, spiral lines. Aperture ovate; pillar-lip curved, 

 thin, slightly reflected. 



Length, 3|- mm. ; diameter, li mm. ; length of aperture, 1 mm. 

 With a sufficient series, this might prove to be the same as a similar 

 undescribed species common in Vineyard Sound and vicinity. 



