Paleontology Zorritos Formation* 91 



Superfamily Rhipidoglossa 

 Family TURBIXIDAE 

 Genus Turbo Linnaeus 



Turbo belli n. nom. 

 Plate IV — Fig. 11. 



Callopoma lineatum Nelson, Trans. Conn. Acad., vol. 2, p. 

 186, pi. 6, fig. 2, 1870; not Turbo lincatus of Da Costa, 1778; nor 

 of Lea, 1845. 



"Shell turreted ; spire elevated ; whorls six, convex. Up- 

 per whorls slightly depressed in front, marked by a few 

 strong, subnodulous ridges, alternating with finer revolving 

 lines. Body whorl very convex, marked above by two 

 strong tuberculose ridges, and laterally and below by a few 

 revolving lines, varying in size, as on the upper whorls. 

 Whole surface marked by very fine and numerous longi- 

 tudinal lines, rather broader than the spaces between them." 

 — Nelson, 1870. 



The aperture is round. On the earlier whorls one strong 

 thread forms a marked keel ; on the body whorl the keel is 

 broadly nodulous, as is the thread beneath it. The growth- 

 lines noted by Xelson are very regular and distinct. Alti- 

 tude, 15.5; diameter, 15 mm. 



This species is somewhat similar to T. domincensis var. 

 laloi Maury,®'' from the Lower Pliocene of Santo Domingo, 

 but the whorls of the spire are more angtilated, and stand 

 out more prominently than in that species, and the sculp- 

 ture of laloi is broader, the ribs being all fuller. The nodula- 

 tion of the ribs on the shoulder of laloi is more profuse than 

 in lineatum. This species is named in honor of Dr. Fred- 

 erick Keller Bell, of Baltimore. Md. 



Zorritos formation. Zorritos. 



Bull. Amer. Pal, vol. 5. Xo. 29. p. 154, pi. 24, fig. 15. 191 7. 



