2ii Dominican Fossils — Maury 47 



Conus gaza Johnson and Pilsbry, Proc. Acad. Nat. Sci. Phila., p. 342, 

 pi. 23, figs. 2, 3, 1911. 



Shell biconic, spire about one-third of the total length, di- 

 ameter one-half the length; post-nuclear whorls about nine, 

 lower edge of each carinate, last whorl sharply angulate at the 

 shoulder, sculptured with twenty to twenty-two flattened ridges 

 alternating with grooves striated by lines of growth. Length 25, 

 width 14 mm. 



Our specimens show but one tuberculated post-nuclear 

 whorl. This is said to be characteristic of the Dominican repre- 

 sentation of the species, while the Isthmian have two tubercu- 

 late whorls immediately following the nuclear. 



Locality. — (Exp'd '16) Bluff 1, Cercado de Mao. 



Conus Bonaczyi Gabb 

 Plate 7, Figure 13 



Shell small, its sides curved, tapering gradually to the base; 

 shoulder angle rounded, spire low, acute, its sides concave; body 

 whorl ornamented by alternating grooves and flat or slightly 

 rounded ridges, the grooves are marked by longitudinal growth- 

 striae but the ridges are smooth. Length of shell 25, greatest 

 width n mm. 



This species has never before been figured and we have no 

 metatype, but our shells answer to the description of C. Bon- 

 aczyi. 



Locality. — (Exp'd '16) Zone G, Rio Gurabo at Los Que- 

 mados. 



Conus Karlschmidti, n. sp. 



Plate 7, Figure 14 



Shell of moderate size, length just twice the width; spire 

 prominent, acute, one-fourth the total length in younger shells, 

 less prominent in adult specimens; post-nuclear whorls about 

 nine, of these the first two and a half are very finely coronate 



