rms the IIBr 



in the IBr series, 



tl„ instead ol 



1 1 of 2 in the 



Comactiniinai 



.1 \ 



III .ml the following division series 



arms b( ai ■ a pinnule 

 i ond and third ; the arms 



in number Capillasterinae 



: ilrsi pi 1 brachial ol' the free arms 



irms; the ossicles of the IBr series are nnitcd 



like the tirst two brachials; the IIBr series, 



win n present, exactly resemble the IBr series, and are always 



the presence <<( IIIBr series is very exceptional ; genital 



pinnules composed of relatively short and broad segments Comactiniin ae 



always more than io arms; one or more IIIBr series always 



present: IIBr series mostly, or entirely, 4 (3 + 4); if 2, the 



nponent ossicles are united by synarthry; IIIBr series 4 



or 2. rarely 2 (1 +2); genital pinnules composed 



of longer and more slender segments Comasterinae 



Subfamily Capillasterinae A. II. Clark. 



Key to the Genera of the Subfamily Capillasterinae. 



.1 More than 10 arms 



the tirst pinnule of the free arms is on the first brachial, and there 



1 the second and third; IIBr series 4 (3 + 4) 



I following ser ; occasionally the division series are 



5 irregular 



brachials much broader than long, oblong or wedge-shaped ; 



ivering plates along the brachial and pinnule ambulacra 



1 Africa to the Malay Archipelago 



and northern Australia, and northward to south- 



Capillaster 



triangular, about as long as broad, becoming elongate 

 itally; brachial and pinnule ambulacra borde- 

 Berm u da, F lorida and 

 and southward to Brazil) . . Nemaster 



