ßAUFF: Palaeospongiologie. 



Palaeontographicu Bd. XL. 



6. 



Ä ]l 



; "'X" -w*t -%% 



'^M^xmm 





22. 



"/l. 





25 



Vi 





^ 



\ 



24: 



20. 



■ -'^ ■^'S^JvX • 'C^l- ff 



Rauff & Rose del. 



