TABLE OF CONTENTS. XXI 



Page. 



Responses to cliange.s in salinity ^^ 



Response to light ^^ 



Response to heat •- ^^^ 



Obsenations nt Maer Island, Torres Strait ^^^ 



Observations at Tobago ^^2 



Response to chemical stimuli ^^^ 



Response to mechanical stimuli *'^'* 



Geotropism -- ^^^ 



Effect of the rain of cinders in the Bay of Naples in April, 1906 695 



Experimental investigation of the dorsal nervous system 696 



Color of crinoids ^^^ 



Family Comasteridje '^"^ 



Subfamily Oapillasterinie "^^^ 



Comatella nigra '^"^ 



Comatella stelllgera "^^4 



Comatella decora '^^ 



Capillaster marisc- 



Neraaster discoidea_ 



704 



Capillaster multiradiata ™'* 



Capillaster clarki ^'^ 



Nemaster lowensis '""^ 



705 



Comissia peregrina ™^ 



Comissia liitkeni ' -"'^ 



Comissia horridus ■ '^^'' 



Comissia hispida ™'^ 



Comissia .=citulus '^^ 



Leptonemaster venustus '"^ 



fi ™5 



Comatula purpurea 



Subfamily Comactiniiuije 



Comatula rotalaria ™^' 



705 



Coraantula pectinata '"" 



Comatulella brachiolata "^^ 



Comactinia meridionalis '"6 



Subfamily Comasterinre ^^^ 



Comaster fruticosus 



Comaster taviana '"t 



Comaster parvus '"^ 



Comaster serrata '-- ™^ 



Comaster minima '^ 



Comaster belli r- — —- — — iTt— r- ^^ 



Comaster novasguinere r^-~iT-r-'-^r——i-;'^nvyhir~rr- 



Comantheria briareus -rr^T-r^^-r'-^r^^'-T^-^t— '^'^ 



Comantheria alternans_ r-^^-rTfj-r------- — ^^ 



707 



Comantheria weberi __ t:7— rT^-T-r-— > 



-_- 708 



Comanthus bennetti 



709 



V_;OUUHln,ilua suiaou^ji. ^^^^ 



Comanthus japonicus ^ — n-— - — - 



^JOIIIHIILUUS WillllLiciJ^ii ~ ^' T "Hr>- r 



Comanthus samoana--- " ^^^ 



Comanthus annulata. 



Comanthus parvicirra.. 



713 



