202 



INDEX TO FAMILIES, ETC., 



PAGE 



Ophiukella, Milleri, Agassiz ; see Ophioderma Milleri, Phillips. 



„ nereida . , . . . . . .156 



OPHiUEiDyE, Wriffki ....... 138, 186 



Ophiukoiuea, Wright ....... 131, 138 



Ophiojiysa, MuUer Sf Troschel . ... . . . 133, 135 



Oreaster, Midler Troschel . . . . . . .48 



„ turritus, Linck (Upper Surface of) . . . , . .9 



Otiiilia, Gray . . . . . . . . .42 



Pal.easter, Hull . . . . . . . 22, 24 



,, asperrimus, Salter (P.F.) . • , . . .24 



„ coronella, Salter (P.F.) . . . . . .25 



lurudo, Forbes (P.F.) . . . . . . .25 



matutinus, Hall (P.F.) . . . . . . .36 



Niagarensis, Hall (P.F.) . . . . . 22, 25 



obtusus, Forbes (P.F.) . . . . . . 22, 24 



Ruthveni, Forbes (P.F.) . . , , . .25 

 Pal^ocoma, Salter . . . . . . . 23, 29, 134 



„ Colvini, Salter (P.F.) . . . . . . .30 



„ cygnipes, Salter (P.F.) . . . , . . .30 



Marstoni, Salter (P.F.) . . . . . . .30 



„ Milleri, d'Orbigny ; see Ophioderma Milleri, Phillips. 



Pal^odiscus, Salter . . . . . . . 23, 35 



ferox, Salter (P.F) . . . . . . .35 



Palasterina, M'Ooy . . . . . . . 23, 26 



„ antiqua, Hisinger (P.F.) ..... 26, 36 



primseva, Forbes (P.F.) . . . . . .26 



„ rugosa. Billings (P.F.) . . . . . .27 



stellata. Billings (P.F.) . . . . . .27 



Palmipes, Linck ....... 40, 44 



Patiria, Gray . . . . . . . . .45 



Paulia, Gray . . . . . ..... .41 



Pectinura, Forbes ........ 133 



Pentaceros, Linck ....... 39, 41 



PENTACEROTiDyE, Gray . . . . . . . .41 



Pentadactylosaster, Linck, pp. 39, 46 ; see Echinaster and Scytaster. 



Pentagonaster, Linck ....... 39, 42 



Petal ASTER, Gray . . . . . . . .41 



Petraster, Billings ....... 23, 29 



rigidus. Billings (P.F.) . . . . . . .29 



Plumaster, Wright . . . . . ■ . 112, 185 



„ ophiuroides, Wright . . . . . . .112 



PoRANiA, Gray . . . . . . . • .44 



Protaster, Forces . . . . . . 23,31, 134, 136 



„ leptosoma, Salter (P.F.) . . . . . . .33 



Miltoni, Salter (P.F.) . . . . . . .32 



Salteri, Sowerby (P.F.) . . . . . . .33 



Sedwickii, Forbes (P.P.) . . . . . . .33 



