DALL, TERTIARY MOLLUSKS OF FLORIDA, PART II. 



PLATE XVI. 



Fig. I. Turritella subannulala Heilprin, vzx. perincisa Dall ; 18.5 mm.; p. 314. 

 Fig. 2. Turritella subannulala Heilprin, type-specimen ; 29 mm.; p. 314. 

 Fig. 3. Turrilella suba?inulala Heilprin, var. mtermedia Dall ; 14 mm.; p. 3r5. 

 Fig. 4. Turritella subanimlala, var. acropora Dall ; 18 mm.; p. 315. 

 Fig. 5. Turritella perattenuata Heilprin, var.; 100 mm.; view of another specimen, 

 with a diagram of the lines of growth ; p. 316. 



Fig. 5. A/eioceras cingulalum Dall, in profile ; 2.25 mm.; p. 302. 



Fig. 7. Same specimen from below ; 2 25 mm.; p. 302. 



Fig. 8. Bittiuni {Styliferina) cerithidioidesTiaW ; 3.5 mm.; p. 276. 



Fig. 9. Turritella perattenuata Heilprin; 120 mm.; p. 316. 



Fig. 10. Turritella apicalis Heilprin; type-specimen; 42 mm.; pp. 316, 317. 



Fig. II. Turritella apicalis, var. cingulata Heilprin ; type-specimen ; 55 mm, ; p. 317. 



Fig. 12. Turritella apicalis, var. mediosulcala Heilprin, type-specimen ; 37 mm.; p. 317. 



Fig. 13. Turritella apicalis, var. tensa Dall ; 67 mm. ; p. 317. 



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