IV TABLE OF CONTENTS. 



Structure and aiiatomy — Coiiliiuieil. 

 Kudials — Continued. 



Articular faces of tlie radials — CdUtintied. Page. 



Family Tropiometridse 3S 



Tropionielra macrodlscus 38 



Tropioiuetra encrinus 39 



Tropiouietra iiieta 40 



Troploinetra carlnata i 40 



Family Calometridi? 40 



NeonK'Ir.i iiinltieolor 40 



Families Tlialassoiiiplrldie and OMritometridie 41 



Family ThalassonietridiC 42 



Subfamily Ptilonietrinae 42 



Ptilonietra miilleri 42 



Ptllometra maeronema — 44 



Asterometra macropoda 44 



Subfamily Thalassometrinse 45 



Thalassometra villosa ^ 45 



Thalassometra agassizii 4fi 



Stylometra spinifera 46 



Parametra orion 47 



Stenometra quinquecostata 48 



.Stiremetra breviradia 48 



Family Charltometridte 48 



Criuometra iusculpta 48 



I'achylometra imequalis 49 



Perissometra angusticalyx 49 



I'oecilometra acoela 49 



Charitometra basieurva 49 



Charitometra iucisa 49 



Family Antedonidie 50 



.Subfamily Antedonin.^ 50 



Antedon petasus , ^ 51 



Autedou mediterranea 52 



Antedon adriatica 52 



Autedon bifida 50 



Compsonietra loveni 52 



Subfamily Tbysauometrinse ^ 54 



Tby.sauometra tenelloides . 54 



Coecometra Lagenii 55 



Subfamily Perometriiiie 50 



Perometra diomedese . 56 



Krytbrometra ruber ^ ^-.„,4-^ ^ 57 



Subfamily Heliometrin» -^-^.^i^^^.^i^^j,.^i^... 58 



Promachocrinus kergueleusis — '-.^^__,_ux*-^ut^i.jj.__! 58 



Solanometra antaretiea , gg 



Florometra asperrima 58 



Florometra perplexa _, , 00 



4i-uai _ (JO 



Florometra tanneri . 



Subfamily Zenometrinae ^-,L.^^ij , go 



Zeuometra columuarls _ q^ 



Psatbyrometra fragilis gj 



Subfamily l!atUymetriu;B __ ^o 



Hathrometra prolisa ...j 



Halbrometra teuella .64 



