VI TABLE OF CONTKNTS. 



Structure and anatomy Continued. p E . 



Muscular articulations 178 



General remarks 178 



Straight muscular articulations ..- 181 



Oblique muscular articulations 181 



Articulations of the pinnules 185 



Articulations of the cirri 188 



Analysis of ambulacra! ossicles 189 



The arm as a whole 180 



The arm in detail _ ISO 



The couiatulids and the Flexibilia Impiunata 191 



The arms of the Atelecriuidfe and Pentnrnetroerinidfe 192 



Pinnules 194 



Division series and pairing of the ossicles in the ambulncrnl series 196 



Nonmuscular articulations-. 201 



Radials.. 202 



Radianal.. 203 



Ornamentation 208 



Perisomic plates.. 218 



Plating of the disk.. 224 



Side and covering plates. _ 228 



Family Coniasterldrc ... 231 



Comatella nlgra 231 



Comatella stelligera 231 



Comatella inaculata 231 



Neocomatella pulchella.. ... 231 



Neocomatella aluta 231 



Capillaster sentosa 231 



Capillaster multiradiata 231 



Capillaster coccodistoma 231 



Nemaster graudls 232 



Nemaster iowensis 232 



Nemaster rubigiuosa 232 



Nemaster discoidea 232 



Comissia peregrina 232 



Comissia lutkeui.. 232 



Comissia littoralis 232 



Leptonemaster venustus 232 



Comatonia cristata 232 



Comatilia iridoinetriformis ... 232 



Comatula rotalaria 233 



Comatula Solaris 233 



Comatula pectinata ... 233 



Comactinia meridioualis 233 



Comatulides australis 233 



Comaster novseguinese 233 



Cornaster minimus 234 



Comaster multibrachiata . 234 



Comaster fruticosus. . 234 



Comaster distincta 234 



Comaster parvus 234 



Comaster taviana 234 



Comaster delicata.. 234 



