Hydrallmania

Hydrallmania
Class Hydrozoa
Phylum Cnidaria

Class Hydrozoa Members are plant-like coelenterates known as hydroids. The gastrovascular cavity is a simple sac. They are the only true diploblastic coelenterates. Polymorphic with alternation of generations

 
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Petrosia testudinaria

Petrosia testudinaria

Class Demospongiae

Phylum Porifera

Petrosia testudinaria VIEW SLIDE SHOW DOWNLOAD ALL

Class Demospongiae:

· Skeleton of sponging fibers only or with spicules or none.

· Usually with spicules of silicon, not triaxon, or with spongin, or with both spicules and sponging.

 

 

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If you want to use this picture for whatever purpose please ask permission first and do credit the efforts of the author" Menelo Ciudadano Hongayo

 

 

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Leiodermatium sp.

Leiodermatium sp.

Class Demospongiae

Phylum Porifera

Class Demospongiae:

· Skeleton of sponging fibers only or with spicules or none.

· Usually with spicules of silicon, not triaxon, or with spongin, or with both spicules and sponging.

 

 

 

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If you want to use this picture for whatever purpose please ask permission first and do credit the efforts of the author" Menelo Ciudadano Hongayo

 

 

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Hippospongia sp.

Hippospongia sp.

Class Demospongiae

Phylum Porifera

 

Hippospongia sp. VIEW SLIDE SHOW DOWNLOAD ALL

 

Class Demospongiae:

· Skeleton of sponging fibers only or with spicules or none.

· Usually with spicules of silicon, not triaxon, or with spongin, or with both spicules and sponging.

 

Copyright protected

If you want to use this picture for whatever purpose please ask permission first and do credit the efforts of the author" Menelo Ciudadano Hongayo

 

 

 

 

 

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Callysongia confoederta.

Callysongia confoederta.

Class Demospongiae

Phylum Porifera

 

Class Demospongiae:

· Skeleton of sponging fibers only or with spicules or none.

· Usually with spicules of silicon, not triaxon, or with spongin, or with both spicules and sponging.

 

 

Copyright protected

If you want to use this picture for whatever purpose please ask permission first and do credit the efforts of the author" Menelo Ciudadano Hongayo

 

 

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Phyllospongia sp.

Phyllospongia sp.
Class Demospongiae
Phylum Porifera 






 Class Demospongiae: 

· Skeleton of sponging fibers only or with spicules or none.

· Usually with spicules of silicon, not triaxon, or with spongin, or with both spicules and sponging.

Copyright protected
If you want to use this picture for whatever purpose please ask permission first and do credit the efforts of the author" Menelo Ciudadano Hongayo
 
 
  



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Grantia sp.

 

Grantia sp.

 

Class Calcispongiae

Phylum Porifera

 

Porifera: Formation of spicules:Spicules are calcareous.

Secretions by scelerocytes of a siliceous monoaxon, Secretion by scelerocytes of a calcareous triaxon.

 

 

 

 

 

 

 

 

 

Copyright protected

If you want to use this picture for whatever purpose please ask permission first and do credit the efforts of the author" Menelo Ciudadano Hongayo

 

 

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