Figures Illustrating the Structure of Various Invertebrate Animals, (Mollusks and Articulata)

acetabula Acmea virginea acoustic action of water adductor muscles Amoy anatomy Ancylus fluviatilis anus aorta Argonaut arteries ARTICULATA brain branchiæ branchial ganglia branchial hearts branchial vein buccal mass canal capsule CEPHALOPODA cerebral Chiton Chitonellus ciliated cirri Cleodora cocal Crania deferens opening Dentalium dissection ditto Doris ducts endosmosis esophagus figured by Cuvier foot foramen front view ganglion GASTEROPODA genital organs groove Helix aspersa hepatic ink-bag intestine INVERTEBRATE ANIMALS Janthina LAMELLIBRANCHIATA lamina Lepas ligule lingual pieces liver Lymnæus Magilus magnified male organ mantle matrix MOLLUSKS mouth muscular sac nacre nerves nervous system ootheca optic oral ovary oviduct ovipositor Ovula pedicle penis pharyngeal ganglia PLATE portion posterior PTEROPODA rectum removed reproductive organs respiratory salivary glands seen Sepia shell shewing side siphon spermatozoa spiral arms STAFFORDSHIRE STOKE-UPON-TRENT stomach surface systemic heart tentacles testis mihi third column thou tongue tuberculata tunic valve vesicle vessels viscera Vulsella