TABLE OF CONTENTS. XXI 



Page. 



Responses to changes in salinity 689 



Response to light 689 



Response to bent 691 



Observations at Maer Island, Torres Strait-- 691 



Observations at Tobago 692 



Response to chemical stimuli 693 



Response to mechanical stimuli.. 694 



Geotropism 695 



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 - t - 696 



Family Cornasteridie__ 703 



Subfamily Capillasterinse__- 703 



Comatella nigra 703 



Comatella stelligera___ 704 



Comatella decora 704 



Capillaster marise 704 



Capillaster multiradiata 704 



Capillaster clarki 705 



Nernnster iowensis 705 



Nemastev rliscoidea- 705 



Comissia peregrlna 705 



Comissia liitkeni 705 



Comissia horridus 705 



Comissia hispida 705 



Comissia scitulus 705 



Leptonemaster venustus 705 



Subfamily Comactiniinaj 705 



Comatula rotalaria 705 



Comatula purpurea 705 



Oomantula ppetinata__ 705 



Comatulella braehiolata^ 705 



Comactinia meridionalis 706 



Subfamily Comasterinas 706 



Comaster fruticosus 706 



Comaster taviana 706 



Comaster parvus__ 706 



Comaster serrata 706 



Comaster minima 706 



Comaster belli- 706 



Comaster novreguinere_ - 706 



Comantheria briareus 706 



( lomantheria alternans . 707 



Comantheria weberi _- 707 



Comanthina schlegalii 708 



Comanthus bennetti ,- 709 



Comanthus solaster 709 



Comanthus japonicus_. 709 



Comanthus wahlbersii__ 709 



Comanthus samoana-- 709 



Comanthus annulata 710 



Comanthus parvicirra 713 



