. Catalogue of the Chaetopoda in the British Museum (Natural History). Oligochaeta; Polychaeta. 154 Arenicolidae maldanc are relatively very large. A mature specimen of Arenicola may contain several or many thousands of full-grown oocytes, but a mature specimen of B. vinccnti contains comparatively few—about 120 were found in one specimen. The eggs of B. vincenti escape by rupture of the body-wall in one or more of tlie posterior segments. Sp. NEUrt - -- Fig. C7.—/>. vincenti. Transverse section througli the fortietli segment. Dorsal blood-vessel; Ep. Epiderm
. Catalogue of the Chaetopoda in the British Museum (Natural History). Oligochaeta; Polychaeta. 154 Arenicolidae maldanc are relatively very large. A mature specimen of Arenicola may contain several or many thousands of full-grown oocytes, but a mature specimen of B. vinccnti contains comparatively few—about 120 were found in one specimen. The eggs of B. vincenti escape by rupture of the body-wall in one or more of tlie posterior segments. Sp. NEUrt - -- Fig. C7.—/>. vincenti. Transverse section througli the fortietli segment. Dorsal blood-vessel; Ep. Epidermis ; Int. Intestine ; Circular muscles; Longitudinal muscles; Oblique muscle; Nerve-cord ; Neur. Neuropodium ; Not. Notopodium ; Ov Esg (oocyte) ; Sp. Mass of spermatocytes ; Ventral blood-vessel, x 110. 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 Ashworth, James Hartley, 1874-1936; Ashworth, James Hartley. London, Printed by Order of the Trustees of the British Museum
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherlondo, bookyear1912
