PATAGONIAN EXPEDITIONS : PAL/EONTOLOGY. 



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Fig. 12. STRUTHIOLARIA ORNATA Sow. 203 



Patagonian beds ; mouth of Santa Cruz River. 



1 2a. Side view of a typical individual showing complete curve of 



outer lip. 

 1 2<5. Front view of a very large individual, having three stronger 



spiral ribs. 

 Fig. 13. DOLIUM OVULUM Ortm. ........ 204 



Patagonian beds; mouth of Santa Cruz River. 

 Back view of largest individual. 

 Front view of the same. 

 Fig. 14. PYRULA CAROLINA d'Orb. ........ 205 



Patagonian beds ; mouth of Santa Cruz River. 



140. Front view of a small, but complete individual. 



\^b. Back view of a large individual, with lower end of canal 



slightly damaged. 

 Fig. 15. TRITONIUM BICEGOI v. Ih. . . . . . . 206 



Patagonian beds ; mouth of Santa Cruz River. 



Front view of a fragment ; the last whorl is broken away. 

 Fig. 1 6. TRITONIUM MORGANI Ortm. ........ 207 



Patagonian beds ; mouth of Santa Cruz River. 



Front view of the only specimen in the collection. 

 Fig. 17. BUCCINUM ANN^E Ortm. ....'.... 208 



Patagonian beds ; mouth of Santa Cruz River. 



Front view of a fine, complete individual. 

 Fig. 1 8. BUCCINUM OBESUM var. MINOR (Phil.). ...... 209 



Patagonian beds ; mouth of Santa Cruz River. 



Back view of an almost complete individual. 



Fig. 19. Fusus SUBSPIRALIS Ortm. 221 



Lower Magellanian beds ; Punta Arenas. 



Fragmentary individual, imbedded in matrix. 

 Fig. 20. Fusus ARCHIMEDIS Ortm. . . . . . . . . 222 



Patagonian beds ; Darwin Station, San Julian. 



2oa. Almost complete individual, with sculpture of surface obscured. 

 2ob. Back view of fragment of another individual showing sculpture. 



All the figures, unless otherwise stated, are natural size. 



(VOL. iv) 



