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The Reproductive System of Gastrotrichs. III. Genital organs of Thaumastodermatinae subfam. n. and Diplodasyinae subfam. n. with discussion of reproduction in Macrodasyida 1
Author(s) -
RUPPERT EDWARD E.
Publication year - 1978
Publication title -
zoologica scripta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.204
H-Index - 64
eISSN - 1463-6409
pISSN - 0300-3256
DOI - 10.1111/j.1463-6409.1978.tb00592.x
Subject(s) - biology , sex organ , reproductive system , reproduction , ultrastructure , zoology , spermatogenesis , anatomy , reproductive biology , evolutionary biology , microbiology and biotechnology , ecology , embryo , embryogenesis , endocrinology , genetics
A comparative structural and ultrastructural investigation is made of genital organs of selected, genera of Thaumastodermatidae and their constructions are defined. Two new subfamilies are designated within the family based on reproductive features and other characteristics. The occurrence of bounding epithelia about the gonads, ova and central body region is noted. Paramyosin type muscles are noted for Platydasys. General and specific features of spermatogenesis, oogenesis and fertilization are defined and discussed. The evolution of accessory reproductive organs in Macrodasyida is discussed.