142 



Bulletin 39 



3^4 



and consists of narrow, yellow V-shaped lines, the acute base of 

 which are directed backwards or away from the aperture and lie 

 along the center of the whorls. Similiar markings may be seen 

 on Veatchi and Guppy* has described the same markings for 

 pugiloides from Jamaica. Length 63, diam. 42 mm. 

 Gatun Stage: Gatun, C. Z. 



Water Cay, Pajiama. 



Headwaters of Middle Creek, C. R. 



Strombus pugiSoides Guppy Plate 13, figures I, 2, 3 



Stroinbus pugilis Guppy, 1866, Quart. Geol. Soc. London, voL 22, p. 

 287. 



Strombus pugilis Gabb, 1873, Trans. Amer. PhiL Soc, vol. 15, p. 

 233- 



Strombus pugiloides Guppy, 1874, Geol. Mag., new series, vol. i, p. 

 433. 



Strombus pugilis Gabb, i88r, Journ. Acad. Nat. Sci. Phila., vol. 8, p. 

 340. 



Strombus pugilis Bose. 1906, Boll, de Inst. Geol. de Mexico, numero 

 22, p. 35, pi. 4, figs. 1-6. 



Strombus pugiloides Maury, 1917, Bull. Amer. Pal., vol. 5, p. 284, pi- 

 20, fig. 6. 



A smaller species than the gatiinensis, from which it also 

 differs hy its longer spire and more strongly sculptured shell. 

 The coiling follov\^s below the shoulder of the whorls, which is 

 either simply rounded or bears several large, spine-like tubercles 

 as in the recent pugilis. Resting stages develop large, hump- 

 like areas irregularly distributed on the spire-whorls. Varieties 

 occur which may be spirall)^ sculptured over the whole shell or 

 the last whorl ma}^ be largel}^ smooth. The original coloration 

 is still preserved on some shells and consist as in gaturtensis of 

 narrow, yellow, V-shaped lines, the apex of which lie about the 

 middle of the shell and directed backwards. It is very distinct 

 from the recent West Indian pugilis .which does not appear to de- 

 scend below the Pliocene. 



* Proc. Sci. Assoc. Trinidad, 1873, vol. 2, p. 82, (reprint: Bull. Amer 

 Pal., vol. 8, p. 214). 



