| Description | Letter (on two pages) from José Vicente Barbosa du Bocage, Lisbon, Portugal, giving results of a comparative of Hyalonema [sponge] deposited in the Lisbon Museum, etc; 'Noticia acerca de descoberta nas costas do Portugal d'um zoophyte da familia Hyalochaetides, Hyalonema lusitanica, Brendt nob. pp3, 1 pl' |