. Annals of applied biology. Biology, Economic; Biochemistry. ^y. iiiTCHiE 191 FEMALE REPRODUCTIVE ORGANS OF C. ABIETIS. Fig. 13 depicts the reproductive organs of a female about to proceed to Fig. 13. Reproductive organs of female C. abietis about to lay eggs (greatly magnified). There are two ovaries, one on each side of the abdomen. Each ovary (0.) consists of two egg-tubes, which open into the paired oviduct. At the anterior extremities of each egg-tube there is a terminal nutritive chamber () and at its apex a terminal filament {). The eggs pass from the egg-tubes to


. Annals of applied biology. Biology, Economic; Biochemistry. ^y. iiiTCHiE 191 FEMALE REPRODUCTIVE ORGANS OF C. ABIETIS. Fig. 13 depicts the reproductive organs of a female about to proceed to Fig. 13. Reproductive organs of female C. abietis about to lay eggs (greatly magnified). There are two ovaries, one on each side of the abdomen. Each ovary (0.) consists of two egg-tubes, which open into the paired oviduct. At the anterior extremities of each egg-tube there is a terminal nutritive chamber () and at its apex a terminal filament {). The eggs pass from the egg-tubes to the oviducts which unite posteriorly to form a common duct—the uterus [U.) and the vagina (F.). Uniting with the posterior portion of the uterus we have the bursa copulatrix {) enclosed in the anterior end of which is the receptaculum seminis (sper- matheca) {) and bearing anteriorly also the accessory gland (). Repeated dissections of the reproductive organs of numerous females, both immature and mature, were made with the object of ascertaining definitely whether a slime or a pair of slime glands were present or not, but in all these I failed to observe any trace of them. (Such slime glands are present in the female reproductive organs of many Scolytids and 13—2. 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 Association of Applied Biologists; Association of Economic Biologists. [Wellesbourne, Warwick, etc. ] Association of Applied Biologists [etc. ]


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbiochem, bookyear1919