. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. B FIGURE 2. Sagittal section of Acdcs acyypti female during spermathecal filling. In A i> shown the upper genital lip (UGL), the swollen bursa (BO, the vestibule (V), the sperma- thecal duct (SD), and the dorsal vaginal valve (DV). B is the same section, at greater magnification, showing the sperm (SP) assembled in packets on the ventral floor of the bur>a. and sperm making the U-turn into the vestibule. Note the position of the accessory gland duct (AGD), one spermathecal duct (SD), the posterior vaginal valve (PV), d
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. B FIGURE 2. Sagittal section of Acdcs acyypti female during spermathecal filling. In A i> shown the upper genital lip (UGL), the swollen bursa (BO, the vestibule (V), the sperma- thecal duct (SD), and the dorsal vaginal valve (DV). B is the same section, at greater magnification, showing the sperm (SP) assembled in packets on the ventral floor of the bur>a. and sperm making the U-turn into the vestibule. Note the position of the accessory gland duct (AGD), one spermathecal duct (SD), the posterior vaginal valve (PV), dorsal vaginal valve (DV) and ventral valve (VV). The transverse muscles of the spermathecal eminence are shown at TM. 6. Sonic changes in the ejaculate "^ the bursa At the very moment of deposition, the locomoting packets of sperm are ejected dorsally above the accessory gland secretion (Fig. 1). Tn sagittal sections, the freshly inseminated bursa measures about 300 to 350 /A in length and varies from 78 to 100^ in depth. The bursal orifice measures from about IS to 25 /JL. The spermatozoa measure about 250 /A (Christophers, I960). \Yhile most of the sperm rapidly spread to the edges of the bursa. .some of them become trapped in the granular portion of the accessory inland secretion. As Spielman (1964) has pointed out, many sperm rapidly assemble on the ventral wall of the bursa facing. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
