. The Crayfish : an introduction to the study of Zoology. THE OVARY AND THE TESTIS. 129 matter, which are developed in different individuals, termed males and females. These two kinds of living matter are ova and sperma- tozoa, and they are developed in special organs, the ovary and the testis. The ovary is lodged in the female ; the testis, in the male. The ovary (fig. 30, ov) is a hody of a trefoil form, which is situated immediately heneath, or in front of, the heart, between the floor of the pericardial sinus and tlie alimentary canal. From the ventral face of this. Fig. 30.—Aaf/iciix ffit
. The Crayfish : an introduction to the study of Zoology. THE OVARY AND THE TESTIS. 129 matter, which are developed in different individuals, termed males and females. These two kinds of living matter are ova and sperma- tozoa, and they are developed in special organs, the ovary and the testis. The ovary is lodged in the female ; the testis, in the male. The ovary (fig. 30, ov) is a hody of a trefoil form, which is situated immediately heneath, or in front of, the heart, between the floor of the pericardial sinus and tlie alimentary canal. From the ventral face of this. Fig. 30.—Aaf/iciix ffitritifilis.—The female reproductive organs ( x 2) ; or, ovary ; od, oviduct; od', aperture of oviduct. organ two short and wide canals, the oviducts (od), lead down to the bases of the second pair of walking limbs, and terminate in tlie apertiu'es {od') already noticed there. The testis (fig. 31, t) in somewhat similar in form to the ovary, but, the three divisions are much narrower K. 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 Huxley, Thomas Henry. London
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Keywords: ., bookcentury1800, bookdecade1880, bookpublisherlondon, bookyear188
