TABLE OF CONTENTS. 



Introductory Remarks. 



Page 

 General Sketch of the Characters of Echinoderms and of their 



Development 1 



I. GENERAL PART. 



The Chief Divisions of the Echinoderma 12 



A. INCALICtfLATA 14 



i. Anactinogonidiata 14 



I. HOLOTHURIOIDEA 14 



a. Apneumona 15 



i. Synapthle 15 



b. Pneumonophora 16 



i. Dendrochirot^: 16 



(a) Decachirote 16 



(b) Polychirote 16 



ii. Aspidochirot^e 16 



B. CALICULATA 17 



ii. Actinogonidiata 17 



«. STATOZOA 17 



II. CRINOIDEA 17 



i. Axtedonid.£ 18 



(3. ELEUTHEROZOA 18 



AZYGOPODA 18 



III. ASTEROIDEA 18 



a. Phanerozonia 19 



i. Archasterid^: 19 



Pararehasterinae 19 



Plutonasterinae 20 



6 



