TABLE OF CONTENTS. 



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ii. PORCELLANASTERID.3: -0 



Ctenodiscinae 20 



iii. Astropectinid>e 20 



Astropectininae 20 



Luidiinae 21 



iv. Pentagonasterid^; 21 



Pentagonasterinae 21 



Miniasterinae 21 



v. Gymnasteriid^e 21 



vi. Asterinid^; 22 



(3. C R T P T Z N I A 22 



i. Stichasterid^; 22 



ii. Solasterid^e 22 



iii. Corethrasterid^; 23 



iv. Pterasterid^; 23 



v. Echinastertd^; 23 



Echinasterinae 23 



vi. Asteriid^ 23 



vii. Brisingid^: 24 



IV. OPHIUROIDEA 24 



a. ZTflOPHIUEJ 25 



i. Ophiolepidid^b 25 



ii. Amphiuridjs 25 



iii. Ophiocomid^; 26 



iv. Ophiothricidj; 26 



/]. SiREPTOPHinEj; 26 



y. Ciadophiuej; - . . . 26 



Astronycinae 27 



Gorgonocephalinae 27 



Z Y G P D A 27 



V. ECHITs'OIDEA 27 



Eeechixoidea 28 



(a) Regexaria 28 



(i.) Endobranchiata 29 



i. ('IDARTD-E 20 



