4 6 Bulletin 29 210 



230, 1873. 



Conus planiliratus Guppy, Quart. Jour. Geol. Soc. London, vol. 32, p. 



528, 1876. 

 Conus planiliratus Dall, Trans. Wagner Inst. Sci., vol. 3, pt. 6, p. 1583, 



1903. 

 Cf. Conus planiliratus Cossmann, Journ. de Conchyliologie, vol. 61, p. 



48, pi. 3, figs. 25, 26, 27, 1913. 



Shell characterized by its concave spire and last whorl sculp- 

 tured with twenty prominent bands, alternating with sulcate in- 

 terspaces lightly striated longitudinally. Length 34, width 

 15 mm. 



Sowerby's recent C. planiliratus (Proc. Zool. Soc, p. 255, 

 pi. 22, fig. 1) is altogether different. The fossil species occurs 

 in the Caroni Series, Trinidad, and at Bowden. The type local- 

 ity is Santo Domingo. The recent C. Stearnsii Conrad may be 

 a descendant. 



Conus margi?iatus Sowerby 

 Plate 7, Figure 11 



Conus marginatus Sowerby, Quart. Jour. Geol. Soc, London, vol. 6, p. 

 44, 1849. 



Conus marginatus Gabb, Trans. Amer. Phil. Soc, vol. 15, p. 230, 1873. 



Conus marginatus Guppy, Quart. Jour. Geol. Soc. London, vol. 32. p. 

 528, pi. 29, fig. 5, 1876. 



Cf. Conus {Chelyconus) marginatus Cossmann, Journ. de Conchylio- 

 logie, vol. 61, pp. 44-46, pi. 3. figs. 14, 15, 1913. 



Shell small, broad and short, spire high, carinate, not coro- 

 nate; last whorl deeply sculptured with about sixteen alternating, 

 narrow bands and grooves, the latter marked with longitudinal 

 striae. Length 19, width 11 mm. 



The nearest ally is C. gaza. Guppy reported C. marginatus 

 from the Manzanilla beds, Trinidad. 



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

 Los Quemados. 



Conus gaza Johnson and Pilsbry 

 Plate 7, Figure 12 



