7 



Invertebrata — Mollusca. 



Cap. XVI. 59.2 DÏVERTEBÎtÂTÂ, 



81 Protozoa 

 •1 Rhizopoda 

 •2 Foraminifera 

 «3 Heliozoa 

 •4 Radiolaria 

 •5 Infusoria 

 •6 Flagellata 

 •7 Ciliata 



Cap. XVII. 59.31 Protozoa. 



31.75 Suctoria 

 .9 Sporozüa 

 .91 Gregarinidae 

 .92 Coccidia 

 .926 Haematozoa 

 .93 Sarcosporidia 

 .94 Myxosporidia 

 .95 Microsporidia 



Cap. XVIII. 59.33 Coeienterata. 



Cap. XIX. 59.34 Spongiae, Porifera 



84 Spongiae, Porifera 

 •1 Myxospongiae 

 •2 Ceratospongiae 

 •3 Halichondriae, Monactinellida 



34.4 Lithospongiae ïetractiaeîlida 

 .5 Hyalospongiae, Hexactmeliid* 

 .6 Calcispongiae 



Cap. XX. 59.35—38 Cnidaria. 



35 Cnidaria 



36 Àctinozoa 



•1 Kugosa, Tetracorallia. 

 •2 Alcyonaria, Octocorallia 

 •3 Zoantharia, Hexacorallia 

 •4 Antipatharia 

 •5 Aetinaria 

 •6 Madreporaria 

 87 Uydrozoa 



37.1 Hydromeduaae, Graptolitha 



•2 Siphonophora 



.3 Acalephae 



.4 Calycozoa 



•5 E,hizostomidae 



.6 Marsupialida 



•7 Discophora 

 38 Ctenopîiora 



Cap. XXI 



89 Echinodernia 



•1 Crinoidea, Pelmatozoa 

 •2 Asterozoa 

 •3 Asteroiden 

 •4 Ophiuroidea 



59.39 Echino derma (incl. Enteropneusta), 



39.5 Echinoidea 

 .6 Holothurioidea 

 .7 Pedata, Elasipoda 

 •8 Apoda 

 •9 Enteropneusta 



Cap. xxn. 



4 Mollusca 



•1 Laniellibranchia 

 •2 Scaphopoda 

 •3 Gastrcpoda 

 •31 Amphineura 

 •32 Prosobranchia 

 •34 Heteropoda 

 •35 Opisthobranchia 

 •36 Nudibranchia 

 .37 Tectibranchia 



59.4 — 4.5 Mollusca. 



4.38 Pulmonata 

 .4 Pteropoda 

 •5 Cephalopoda 

 .51 Tetrabranchia 

 .52 Nautiloidea 

 .53 Ammonitae 

 .55 Dibranchia 

 .56 Octopoda 

 •58 Decapoda 



