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habitusBrunberg, L. On the Nemertean Fauna of Danish Waters. Ophelia, 1(1), 77-111.
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Carinomella lacteaAnterior portion of body
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HabitusCoe, W. R. (1905). Nemerteans of the west and northwest coasts of America.. Bull. Mus. comp. Zool. Harv.. 1-318
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Tubulanus annulatus: Habitus
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Tubulanus annulatus head showing ventral proboscis pore and mouth
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Plate10.5 Transverse section of the proboscis of Meckelia annulata
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Tubulanus capistratus
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Tubulanus cingulatus: habitus
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Tubulanus frenatus: Habitus
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habitusBrunberg, L. On the Nemertean Fauna of Danish Waters. Ophelia, 1(1), 77-111.
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Tubulanus linearis: Habitus
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Tubulanus pellucidus: Habitus
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Tubulanus rhabdotus: Lateral sensory organ (center of photo)
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Tubulanus rhabdotus: circular bands with white margins
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Tubulanus riceae: habitus
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Showing dorsal (L) and lateral views (R)Coe, W. R. (1905). Nemerteans of the west and northwest coasts of America.. Bull. Mus. comp. Zool. Harv.. 1-318
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Tubulanus superbus: Showing lateral sensory organ(from Buerger, O., 1897-1907. Nemertini. In: H.G. Bronn (ed.) Klassen und Ordnungen des Toerreichs 4 Suppl, Leipzig.)
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Buerger lithograph: sample hoplonemertean
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Schematic diagram of the Malacabdella grossa spermatozoon and its acrosomal region and neck region.From: The spermatozoon of the nemertine Malacobdella grossa Bjorn Afzelius J. Submicro. Cytol., 3, 181-192, 1971 (A) Acrosome (AN) Annulus (AV) Acrosomal vesicle (DC) Distal cenriole (M) Mitochondrial sheath (N) Nucleus (PC) Proximal centriole (PR) Post-acrosomal ring (SA) Subacrosomal material (T) TailWith these considerations as a background a fine structural investigation was started using the sperm of the parasitic nemertine Malacobdella grossa (O. F. Müller). The sperm of this species can be characterized as advanced as evidenced by the studies of Retzius (1904) and Franzén (1956). The mode of fertilization is incompletely known. (A) Acrosome (AN) Annulus (AV) Acrosomal vesicle (DC) Distal cenriole (M) Mitochondrial sheath (N) Nucleus (PC) Proximal centriole (PR) Post-acrosomal ring (SA) Subacrosomal material (T) TailWith these considerations as a background a fine structural investigation was started using the sperm of the parasitic nemertine Malacobdella grossa (O. F. Müller). The sperm of this species can be characterized as advanced as evidenced by the studies of Retzius (1904) and Franzén (1956). The mode of fertilization is incompletely known.From: The spermatozoon of the nemertine Malacobdella grossa Bjorn Afzelius J. Submicro. Cytol., 3, 181-192, 1971(A) Acrosome (AN) Annulus (AV) Acrosomal vesicle (DC) Distal cenriole (M) Mitochondrial sheath (N) Nucleus (PC) Proximal centriole (PR) Post-acrosomal ring (SA) Subacrosomal material (T) TailWith these considerations as a background a fine structural investigation was started using the sperm of the parasitic nemertine Malacobdella grossa (O. F. Müller). The sperm of this species can be characterized as advanced as evidenced by the studies of Retzius (1904) and Franzén (1956). The mode of fertilization is incompletely known.
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Dorsal view of anterior portion of body showing markings on the head and the arrangement of ocelli.Coe, W. R. (1901). The Nemerteans of the Expedition. Proceedings of the Washington Academy of Sciences, Vol. 3, 1-110.
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Outline of head to show position of markings and arrangement of ocelli.Coe, W. R. (1901). The Nemerteans of the Expedition. Proceedings of the Washington Academy of Sciences, Vol. 3, 1-110.
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Amphiporus bimaculatus: head