EXPLANATION TO I'l.ATK III. 



Fu;. 1. Hi-i-tiilrii'iit i/fxiiiiiiilfxTorrey. Part of branch (enlarged ). 



i'. Si'i-tiil'ii-Ki ilixintiiilt-x. Pair of hydrothecae (greatly enlarged i. 



.",. x liiilm in i/miniinli'x. End of hydrotheca, showing aperture (greatly t'nlartml ). 



4. .s< rliilurin i-iilhliiini Nutting. Portion of branch (enlarged). 



"i. .^rtiilfirin nitlilniiii. Pair of lmlrothec;c (greatly enlargeil). 



6, 7. H<-rtiili<riit nitlilnmi. Lateral views of hydrothec.-e, showing tridentate margins (greatly enlarged). 



s, 11. S,'i-lul,iri<i nilliliiini. T\vo /ither views of margins (greatly enlarged). 



in. \, i-lii/iii-iii iinii-ili.t Hincks. Part of branch with gouangium (enlarged). 



160 



