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Øresundsakvariet
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Syd for Dokkedal
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Fønstrup Dam, Nødebo, Hillerød, Danmark
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Ørn Sø, Silkeborg, Danmark
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Gudenå opstrøms Klostermølle, Jylland, Danmark
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Ørn Sø, Silkeborg, Danmark
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Honduras
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Gadevangsrenden
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Ravnkilde ved Rebild Bakker, Jylland, Danmark
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Øster Hurup
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Aqua Silkeborg
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Lendrup S.f. Løgstør, Danmark
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Danmarks Akvarium
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L’Aquàrium de Barcelona, Spain
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Hampen Sø
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Ørn Sø, Silkeborg, Danmark
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Tube worms (Riftia pachyptila) at a Pacific hydrothermal vent
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Galeolaria aurantiaca (Vogt.).
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Polycirrus exinius.
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Clymenella torquata.
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Polydora (Leucodore) ciliata, with ova (1) : Young larvae of Polydora from a photomicrograph (2), Older stages (3-4), Somewhat more advanced (5-9), Egg-cases of polydora (10).
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Siphostoma fuscum (The Pipe-Fish).. fig. 19Young embryo, in which the tail is still archicereal and the dorsal and pectoral fins are just developing. fig.20 a still younger stage, in which the tail is just beginning to grow out. fig.21 an older stage, i
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Cirratulus grandis.