Handbook of Zoology, Volumen1

abdomen amongst Anat animals Antennæ anteriorly aperture apex appendages Archiv BLAINV body Branchiæ calcareous cavity cells cephalothorax cilia Comp conical Crust crustaceans CUVIER cylindrical distinct dorsal du Mus DUMÉRIL eggs EHRENB EHRENBERG ejusd elongate Elytra ESCHSCH exsert external eyes FABR Family female filiform four ganglia gén genera genus GUÉRIN Iconogr head Heft Hist horny insects intestinal canal Labrum larva larvæ last joint LATR LEACH LINNEUS live longitudinal MACQ male Mandibles margin maxillæ Maxillary palps MEIG Mém membranous MILNE EDWARDS molluscs mouth MUELL MUELLER nervous numerous observed Ocelli organs oval pair of feet PANZER Deutschl Polypary Polyps posterior posteriorly proboscis RATHKE RATZEBURG respiratory ring segments Série setæ shell short side SIEBOLD species stem stomach Sub-genera Sub-genus surface tarsi tentacles terminated thorax tibiæ transverse tube ventral vesicles vessels whilst wings worms Zool Zooph