. The anatomy, physiology, morphology and development of the blow-fly (Calliphora erythrocephala.) A study in the comparative anatomy and morphology of insects; with plates and illustrations executed directly from the drawings of the author;. Blowflies. INTERNAL GENERATIVE ORGANS OF THE MALE. 66i processes of which reach the cell wall or similar processes from other nuclei; the interspaces arc clear vacuoles filled with fluid or, more rarely, with oil globules (see pp. 275, 276). They are exhausted, or semi-exhausted fat-cells, and form the peri- toneal coat of the I'lc;. 90.—The gener


. The anatomy, physiology, morphology and development of the blow-fly (Calliphora erythrocephala.) A study in the comparative anatomy and morphology of insects; with plates and illustrations executed directly from the drawings of the author;. Blowflies. INTERNAL GENERATIVE ORGANS OF THE MALE. 66i processes of which reach the cell wall or similar processes from other nuclei; the interspaces arc clear vacuoles filled with fluid or, more rarely, with oil globules (see pp. 275, 276). They are exhausted, or semi-exhausted fat-cells, and form the peri- toneal coat of the I'lc;. 90.—The generative' organs of the male Rlow-lly. tie, ejaculatory duct ; es, ejaculatory sac ; /, penis; fg, paragonium ; /, testis ; vd, vas deferens ; ve, vas efferens. In the advanced pupa and the mature insect before the act of copulation, the interior of the testis is divided into loculi by processes or septa from the epithelial coat. These septa are exceedingly delicate and bound irregular spaces; those towards the fundus of the organ are packed with spermatogenic cells, and those nearer the duct contain fully developed Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lowne, Benjamin Thompson, 1839-. London, Pub. for the author by R. H. Porter


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Keywords: ., bookcentury1800, bookcollectionbiod, bookdecade1890, bookyear1890