SHALLOW-WATER STARFISHES 283 



Subfamily I. GONIASTERINJE Verrill = Pentagonas- 



terina Sladen (pars). 



Subfamily II. PSEUDARCHASTERINJE Sladen. 

 Subfamily III. MEDIASTERIN2E Verrill, 1899. 

 Subfamily IV. NECTRIINJE Perrier; Fisher. 

 Subfamily V. HIPPASTERIINJE Verrill. 

 Subfamily VI. ANTHENEIN2E Fisher (sense restricted). 

 Subfamily VII. LEPTO GO MASTERING Perrier. 

 Subfamily VIII. CHITON ASTERINJE Fisher. 



Family VII. ODONTASTERIDJE Verrill = Gnatkosteriwe 

 Perrier (pars). 



Family VIII. CH&TASTERID1E Ludwig. 



Family IX. ARCHASTERID2E Verrill (restricted to Arch- 

 aster). 



Suborder II. MYONOTA Ludwig. 



Family X. BENTHOPECTINIDJE Verrill = Benthopec- 

 tinince Verrill, 1894. 



Subfamily I. BENTHOPECTININJE Verrill, 1894. 

 Subfamily II. PONTASTERIN&. Verrill, 1899. 



Suborder III. PAXILLOSA Perrier (sense restricted). 

 Family XI. PORCELLANASTERWM Sladen. 



Subfamily I. PORCELLASTERINM Sladen. 

 Subfamily II. CTENODISCINJE Sladen. 



Family XII. GONIOPECTINIDJE Verrill. 



Family XIII. ASTROPECTINIDJE Gray (restricted). 



Family XIV. LUIDIID^E Verrill = Luidiina Sladen. 



It will be noticed that in the above arrangement the family Arch- 

 asteridias of Perrier, 1894, is divided among five distinct families 

 and subfamilies. Most of his genera are now placed in the Pseud- 

 archasterinse. 



The subordinal name Valvata I have here changed to Valvulosa, 

 partly because it is not strictly identical with Valvata of Perrier, 

 and partly to make its termination correspond with Paxillosa. 



In the arrangements of Perrier, and of Sladen, Valvaster is made 

 a subfamily, Valvasterinae, of the family Echinasteridae. Fisher 



