Figure 6
From: Trapped in freshwater: the internal anatomy of the entoproct Loxosomatoides sirindhornae
Details of the reproductive system of Loxosomatoides sirindhornae. (a) Cross-section at the height of the intestine showing the prominently stained layer (asterisk) below the dense ciliation of the intestine as well as the ovary and oviduct with associated glands. (b) Detail of the brood chamber showing three embryos in different developmental stages. A two-cell stage is visible at the left side. At the upper right side several threads attaching embryos to the brood chamber are visible. (c) Cross-section of the calyx showing the large dimensions of the brood chamber with fully developed larvae. (d) Detail of the attachment site of the embryos within the brood chamber. Abbreviations: at - attachment threads, atc - atrial cavity, ats - attachment site of the embryos at the brood chamber, bc - brood chamber, c - cilia, e - embryo, gc - glandular cells, int - intestine, l - larva, ov - ovary, ovd - oviduct, rt - retracted tentacles.