SPUMELLARIA ET NASSELLARIA. TAF. 58. 



The%yagg of H M S'ChaHenger' 



Raiholana PI 92. 



E.Ha«M and Afillsck.M 



1-7. SEMANTIS, 8 10. C L AT H R C I RC U S , II L3. CORTINISCUS, 

 14 15. STEPHAN I SCUS, 16. 19, SEMANTISCUS, 20 21. STEPHANIUM 



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