INVESTIGATION ON THE ECOLOGY AND RESPIRATORY RESPONSES OF THE HEMICHORDATE PTYCHODERA FLAVA TO TIDAL CYCLES AND SALINITY CHANGESAuthors: Javapaul Azariah | M Mohamed Ismail | M Ahmed NajibPublished in Biol Bull, in 1975, in volume 149, pages 455-466Created: 2010-01-06, modified: 2011-06-21doi:10.2307/1540379