. Fig. 26. Longitudinal horizontal section of the kidney of a Fin whale foetus 2-3 m. in length, (x \.) Ventral view. The section has passed dorsal to the mesal slit, which is therefore not seen in the figure. Twelve or thirteen lobes are seen. Division into renculi is complete, but the lobules have begun to lose their identity. ex. Ureter. e-. Small backwardly directed duct homologized with the posterior calyx major of non-lobulated a. Interlobar septum. b. Renculi. c. Central connective tissue core. d. Blood vessels. kidneys (Daudt).

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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti