EEVISION OF PALEOZOIC STELLEKOIDEA. 21 



Pago. 



Helianthaster gyalum Clarke (-part) =Lepidaste)'ella babcocH 160 



//. , new species C\arke=Lepidasterella babcocki 160 



H. rhcnanus Roemer 159 



H. roemcri Q\&xke=Palseosolaster roemeri 211 



Kisingeraster St\lrtz=Lmdstr6master 148 



II. aniiqua Stiii'tz—Lindstrdmaster anliquus 149 



Hudsonaster Stiirtz 53 



H. balheri, new species 65 



H. incomptus (Meek) 61 



n. matutimcs (Hall) 57 



H. milleri, new species 60 



H. narraivayi (Hudson) 59 



H. rugosus (Billings) 64 



Jaekelaster Stintz .• 192 



/. petali/onnis Stiii-tz 192 



Lapworthura Gregory 250 



L. cylindrica Parks = Tx7i iaster cylindricus 220 



L. viilloni (Salter) 251 



L. sollasi Spencer 251 



L. (?)sp : 251 



Lepidaster Forbes 158 



L. grayi Forbes 158 



Lepidasterella, new genus 160 



L. babcochi, new species 160 



Lindstromaster Gregory ; 148 



L. anliquus (Hisinger) 149 



lioriolaster Stiiitz 201 



L. mirabilis Stiii'tz 201 



Medusaster Sttirtz 212 



M. rhenanus Stiirtz 212 



Mesopalseaster, new genus 74 



M. ( f ) acuminatus (Simono\'itsch) 93 



21. ( .?) antiquiis (Troost) ; 86 



M. bellulus (Billings) 91 



31. caractaci (Gregory) 92 



M. ( ?) cataractensis, new species 89 



M. (?) clarki (Clarke and Swartz) 94 



M. (?) dvbius (Miller and Dyer) 85 



M.fmei (Ukich) [ 81 



M. granti (Spencer) 89 



M. inter inedius, new species 79 



M. ( .?) lanceolatiis, new species 82 



M. (?) parviusculus (Billings) 87 



M. proavitus, new species 83 



M. shafferi (Hall) 77 



M. ( ?) wilberanus (Meek and Worthen) 84 



Miomaster Schondorf 96 



M. drevermanni Schondorf 96 



Miospondylus Gregory 263 



M. rhenanus (Stiirtz) 263 



Monaster Etheridge 170 



Monaster Gregory =Australaster 72 



M. clarkei (De Koninck) 172 



