7 



Invertebratft — • Mollusca. 



Cap. XVI. 59.2 INVERTEBRATA. 



81 Protozoa 

 ,1 Rhizopoda 

 •2 Foraminifera 

 •3 Heliozoa 

 •4 Eadîolaria 

 .5 Infusoria 

 .6 Flagellata 

 •7 Ciliata 



Cap. XVII. 59.31 Protozoa. 



31,75 Suctoria 

 .9 Sporozoa 

 .91 Gregarinidae 

 .92 Coccidia 

 .926 Haematozoa 

 .93 Sarcosporidia 

 .94 Myxosporidia 

 .95 Microsporidia 



Cap. XVIII. 59.33 Coelenterata. 



Cap. XIX. 59.34 Spongiae, Porifera. 



34 Spongiae, Porifera 

 .1 Myxospongiae 

 •2 Ceratospongiae 

 .3 Halichondriae, Monactinellida 



34.4 Lithospongiae Tetractinellida 

 .5 Hyalospongiae, Hexactinellida 

 .6 Calcispongiae 



Cap. XX. 59.35—38 Cnidaria. 



85 Cnidaria 

 36 Actinozoa 



.1 E-ugosa, Tetracorallia. 



.2 Alcyonaria, Octocorallia 



•3 Zoantharia, Hexacorallia 



,4 Antipatharia 



•5 Actinaria 



,6 Madreporaria 

 ^7 Hydrozoa 



37.1 Hydromedusae, Graptolithî 



.2 Siphonophora 



•3 Acalephae 



.4 Calycozoa 



.5 Rhizostomidae 



.6 Marsupialida 



.7 Discophora 

 38 Ctenophora 



Cap. XXI. 59.39 Echinoderma (incl. Enteropnensta). 



89 Echinoderma 

 •1 Crinoidea, 

 .2 Asterozoa 

 •3 Asteroidea 

 •4 Ophiuroidea 



Cap. XXII. 



4 MoUnsca 



.1 Lamellibranchia 

 .2 Scaphopoda 

 •3 Gastropoda 

 .31 Amphineura 

 .32 Prosobranchia 

 .34 Heteropoda 

 .35 Opistbobranchia 

 •36 Nudibranchia 

 .37 Tectibranohia 



>.5 Echinoidea 

 .6 Holothurioidea 

 .7 Pedata, Elasipoda 

 .8 Apoda 

 .9 Enteropnensta 



59.4—4.5 Mollusca. 



4.38 

 .4 

 .5 

 .51 

 .52 

 .53 

 .55 

 .56 

 .58 



Pulmonata 

 Pteropoda 

 Cephalopoda 

 Tetrabranchia 

 Nautiloidea 

 Ammonitae 

 Dibranchia 

 Octopoda 

 Decapoda 



