Bulletin 29 243 



coronating the shoulder; surface covered with close, coarse, even 

 spiral threads; aperture narrow, outer lip sharp, lirate far within; 

 inner lip with a light callus, columella with two distinct, slightly 

 oblique plications. Length of shell 13, greatest width 5.25 mm. 



This interesting shell is apparently nearest akin to such 

 forms as C. cadaverosa Reeve and C. exasperata Gmelin, living 

 in the Polynesian and Red Sea regions. The whole genus now 

 is characteristically Polynesian; but our shells so resemble spe- 

 cimens of C. cadaverosa from the Philippines that there can be 

 no doubt of their belonging to the same genus. 



An allied genus is Lapparia Conrad, represented by L. dn- 

 mosa in the Jacksonian Eocene of Mississippi. 



I take great pleasure in naming this species in honor of Dr. 

 R. Bullen Newton of the British Museum. 



Localities. — (Exp'd '16) Zones D and E, Rio Gurabo at 

 Los Quemados. 



Genus Fusus Lamarck 



Fusus Henekeni Sowerby 

 Plate 12, Figure i 



Fusus Henekeri Sowerby, Quart. Jour. Geol. Soc. London, vol. 6, p. 

 49, 1849. 



Fusus Henekeni Gabb, Trans. Amer. Phil. Soc., vol. 15, p. 204, 1873. 



Fusus Henekeni Guppy, Geol. Mag. London, p. 439, 1874; Quart. Jour. 

 Geol. Soc. London, vol. 32, p. 524, pi. 28, fig. 6 (type), fig. 2 (var- 

 iety kaitensis), 1876. 



Fusus Henekeri Dall, Trans. Wagner Inst. Sci., vol. 3, pt. 6, p. 1584, 

 1903. 



Fusus Henekeni Grabau, Smithsonian Misc. Coll., vol. 44, no. 1417, p. 

 19, T904. 



This fine species is characterized by its convex whorls with 

 rounded ribs (nine on the body whorl), and primary, secondary 

 and tertiary spirals. Our largest shell measures 90X24 mm. 

 Guppy has given an excellent figure of Sowerby' s type, collected 

 by Heneken. The species also occurs at Bowden. 



Professor Grabau has noted the strong resemblance of F. 



