Quarterly Journal of Microscopical Science, Volume 29J. and A. Churchill, 1889 - English periodicals |
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Acanthodrilus Amblystoma Amphioxus apertures appears atriopore atrium Bipinnaria blastopore body wall brain canal cavity cells Chick Chiroteuthis coelom connection cranial ganglia cusps described dorsal Earthworms ectodermal Elasmobranchii embryo enamel organ epiblast epipodite epithelial epithelium external fact fibres figures fin-rays flagellated chambers fold funnels ganglionic ganglionic Anlagen gills glands glandular hind-brain hydrocoel larva lateral layer longitudinal median medullary membrane mesenteries mesoblast muscular myotomes nephridia nephridial system nephridium nerves nervous system neural plate neural ridge notochord nuclei observed olfactory Ophiurids origin ovum pair papilla parietal eye Perichaeta pharynx pigment pores portion position posterior enterocoels pouches present primary bar primitive probably Professor pronephros protoplasm region represented rudiment seen segments septa setae shown side somites space species specimens spinal ganglia Sponge stage structure surface tentacles tissue tooth transverse section true teeth tube tubules Urochaeta vasa deferentia ventral Vertebrates vertical section vesicle water-pore Zool