320 



1NDKX. 



Page. 



Normal i, A M 141 



North Atlantic Ue<_'ion '. 47 



N in litl lira dalli 122 



Xuttiiur. ('. (' 47, 141 



Ulivi 144 



Opercular muscles 12 



Operculuni 22 



as a systematic character 42 



morphology ill I '.I 



.rnrhiirny, Aleiile si, 141 



( Iri^'in of the sex cells 37 



I'aarmann, .1. II 20. ] |-J. IL'-I 



mi class! lii 'at inn ni' the Sei tula riila 1 40 



mi the ii|ierciihini 22 



1'ackanl, A. S., jr 141 



I'allas on Thniaria Imicliitis 67 



Pasytheu 14, Mil, 4 1 , 4M, 44, 5(1, 74 



liexoiloll _ 74 



philippina '. 74 



i|iiailriilentata 5, Hi, 4(1, 74, 75, 147 



( Sertularia | quadridentata - 75 



I tulipier I 74 



Patagonian KcLtion ; 47 



I'ennaria (Sertularia ) falcata 1-4 



i rericlailiiiiii i 3s, I 27 



l.iileiitatnni I2!t 



Perisiphonia 7 



IV rNi | ill i mil lie 7 



I 'h .ffer 144 



I 'leper ! 144 



Pluniularia 5(1, I L'4 



echinulata -7 



( falcata ) 1-4, L'5 



( franciscana i I'll 



(gracilis) 21; 



riuniulariila- 7,!l, :'.7. 47. 4S. 4!l, 5(1, L'4 



Points of interi;railatioii het ween Ahietinaria ami other genera 13 



between Diphasia and other L'enera 107 



I iet \\eei i Scrtiilarclla ami other genera 7li 



In 'tween Sertularia ami other genera 50 



hetxveen Thuiaria ami other irenera li- 



between Synthecium tun I ot her Lien era 134 



( I'nlyserias >_'lacialis ) - . 132 



liinck-ii ll'S, 132 



I'oly/nnias <lroup SI 



Protractor of the hyilranth Id 



Ka.l.le 144 



Ileiluplicalion of the map_'in L'4, L'5 



Ri.lley, St. 144 



Hitter, Win. K 1 



Hii'-'osu < Jrniip 17, SI, 89 



Sjeiimmlssnn, I! 141 



Sars,G.O 141 



SaviL.'iiy. .1. ( '., et Ainlniiiii 144 



ScMiiilinavian I legion 47 



Schneiiler, Carl Camilln I4L' 



nu elassi Heat inn of the Sertnlariilte 41 



Scliul/.e, Frann Kilhunl 141 



Sea-( 'ypress 72 



Sea-Fir... 114 



Sea-Hair/ 54 



Scu-< >ak ( 'nralline 51 



Sea-Spleen Wort or I 'ii|y pin ly , , I '<> ' 



Plate. 



XIII 



