22 PROCEEDINGS OF THE NATIONAL MUSEUM vol.70 



Family RINGICULIDAE 



Genus RINGICULA Deshayes 

 Section RINGICTJLINA Monterosato 



RINGICULA NITIDA Verrill 



Ringicula nitida Verrill, Amer. Journ. Sci., ser. 3, vol. 5, p. 16, Jan., 1873; 



Trans. Conn. Acad., vol. 3, p. 48, pi. 1, fig. 2, 1874. 

 Ringicula leptocheila Brugnone, Misc. Malac, p. 18, fig. 11, 1873. 



Off Georgia and Fernandina, numerous. Gulf of Maine to the 

 Lesser Antilles, and on both sides of the Atlantic, in the Mediterra-^ 

 nean and fossil in the Italian Pliocene. 



FamUy ACTAEONIDAE 



Genus OVULACTAEON Dall 



OVULACTAEON MEEKI Dall 



Ovulactaeon meeki Dall, Bull. Mus. Comp. Zool., vol. 18, p. 43, pi. 33, figs. 3, 

 4, 1889. 



Off Fernandina, 14 specimens. Also off Havana in 450 fathoms; 

 (Sigsbee), and west of North Bimini, Bahamas, in 200 fathoms, sand; 

 Dr. W. H. Rush. 



• Family ACTEOCINIDAE 



Genus VOLVULELLA Newton 



VOLVULELLA MORCHI, new species 



Shell small, white, smooth, subcylindric, attenuated at both ends^ 

 involved, the aperture as long as the shell; apex hardly pointed, aper- 

 ture very narrow except in front; outer lip thin, straight, rounding in 

 front evenly into the short twisted pillar which is hardly thickened 

 and has a narrow furrow behind it. Height, 3.5; diameter, 1.25 mm. 

 Cat. No. 108268, U. S. N. M. 



Off Georgia, one specimen. 



The shell is nearest V. persimilis Morch, but is smaller and not 



spirally striated. 



Genus RETUSA Brown 



RETUSA RECTA Orbigny? 



? Bulla recta Orbigny, Moll. Cuba, vol. 1, p. 131, pi. ibis. figs. 17, 20, 1845. 



Shell small, white, microscopically spirally striated, with about 

 three whorls, exclusive of the prominent obliquely partly immersed 

 nucleus; suture distinct, the whorl in front of it rather squarely 

 shouldered but not channeled; sides parallel, rounded in front, the 

 aperture narrow behind, with sharp, thin margin, carried back as far 

 as the shoulder of the last whorl; pillar arcuate, simple, without a 



