COMPARATIVE ANATOMY 



B. Special 



1. Amphineura . 



2. Gastropoda 



3. Scaphopoda 



4. Lamellibranchia 



5. Cephalopoda . 



XVIII. The Body Cavity . 



XIX. The Nephridia 



A. Amphineura 



B. Gastropoda 



C. Scaphopoda 



D. Lamellibranchia . 



E. Cephalopoda 



XX. Genital Organs 



A. General . 



B. Special 



XXI. Parasitic Gastropoda 

 XXII. Attached Gastropoda 



XXIII. Ontogeny . 



A. Amphineura 



B. Gastropoda 



XXIV. Phylogeny . 



Review of the most Important Literature 

 Appendage, — Rhodope Veranii 



CHAPTER VIII 



ECHINODERMATA 



Systematic Review 



Class I. Holothurioidea 



II. ECHINOIDEA 



III. A.STER0IDEA 



IV. Ophiuroidea 

 V. Pelmatozoa 



1. Crinoidea 



2. Cystidea 



3. Blastoidea 



I. General Morphology of the Echinoderm Body 

 II. Morphology of the Skeletal System . 



