317 Dominican Fossils — Maury 153 



teriorly ; outer lip thin; inner lip with a thick callus, the free edge 

 of which may be very minutely crenulate. Greatest diameter of 

 shell 8, greatest thickness 3.25 mm. 



This attractive shell is the precursor of N. viridis living in 

 the West Indies; but the fossil is smaller and its color scheme 

 very different. We collected over a hundred specimens all with 

 the same design, showing it to be quite constant. 



Locality. — (Exp'd '16) Bluff 2, (rare); Bluff 3, (abundant), 

 Cercado de Mao. 



Genus Phasianella. Lamarck 

 Phasianella punctata Gabb 

 Plate 24. Figures 12, 13 

 Lacuna punctata Gabb, Trans. Araer. Phil. Soc, vol. 15, p. 240, 1873. 

 Characterized by microscopic, opaque white spots on a quin- 

 cunx plan upon a semi-translucent ground. 



The genus Lacuna is chiefly Arctic in its present distribu- 

 tion. The affinities of the fossil seem rather with Phasianella 

 tessallata (living on the Monte Cristi beach), which is spotted and 

 more or less umbilicatedf This would harmonize with Gabb's 

 remark, "It is living in the West Indies but I cannot find it de- 

 scribed' ' . 



Localities. — (Exp'd '16) Bluff 2 (rather rare), Bluff 3 

 (abundant), Cercado de Mao. 



Genus Turbo Linne 

 Turbo crenulatoides , n. sp. 



Plate 24, Figure 14 



Cf. Turbo castaneus Guppy, Quart. Jour. Geol. Soc, London, vol. 22, 



p. 291, 1866; Geol. Mag. London, p. 441, 1874. 

 Cf. Turbo near crenulatus Dall, Trans. Wagner Inst. Sci., vol. 3, pt. 



6, p. 1585, 1903. 



Shell resembling Kiener's figure of T. crenulatus Gmelin 

 (Kiener, Coq. Viv. vol. 9, pi. 27, fig. 1) but the entire orna- 



