Elementary text-book of zoology, general Elementary text-book of zoology, general part and special part: protozoa to insecta elementarytextbo00clau Year: 1892 fAk\ iMlo V buddinsr from a single anima' the buds remaining attached and developing into individuals which differ considerably in structure and appearance, and each of which pei-f orms special functions in maintaining the colony (nutritive, protective, sexual, etc.) Such a form of alternation of generations is known as j^ohjmorjyhism* and reaches a great complication in the polymorphous colonies of the Siphonophora. A form of reprod
Elementary text-book of zoology, general Elementary text-book of zoology, general part and special part: protozoa to insecta elementarytextbo00clau Year: 1892 fAk\ iMlo V buddinsr from a single anima' the buds remaining attached and developing into individuals which differ considerably in structure and appearance, and each of which pei-f orms special functions in maintaining the colony (nutritive, protective, sexual, etc.) Such a form of alternation of generations is known as j^ohjmorjyhism* and reaches a great complication in the polymorphous colonies of the Siphonophora. A form of reproduction which closely resembles metagenesis, but which genetically has quite a difterent explanation, is the lately Fig. 113.—^, Fully developed Strobilawith sepa- rating: EphyraB. h. Free Ephyra (of about 1 '5 to 2 mm. diameter. * K. Leuckart, ' Ueber den Polymorphismus der Individuen oJer die Erscheinunsr der Arbeitsthcilung in der Natur.' Giessen, 1851.
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