. Catalogue of the Chaetopoda in the British Museum (Natural History). Oligochaeta; Polychaeta. Fig. 20.—.4. tnarina (250 mm. long). The ventral end of a neuropodial chaetal sac, showing tlie formation of Fig. 21.—A. ammilis var. affiim. Crotchets from apost-larval specimen, 7-6 mm. long. with the surface of the rostrum focussed, demonstrates that the series of teeth extends round the base of the rostrum, and that the sub-rostral process is the lowest and smallest of the series. Fig. 22 a represents a crotchet, from a specimen 136 mm. long. This is similar in form to that of A. mar
. Catalogue of the Chaetopoda in the British Museum (Natural History). Oligochaeta; Polychaeta. Fig. 20.—.4. tnarina (250 mm. long). The ventral end of a neuropodial chaetal sac, showing tlie formation of Fig. 21.—A. ammilis var. affiim. Crotchets from apost-larval specimen, 7-6 mm. long. with the surface of the rostrum focussed, demonstrates that the series of teeth extends round the base of the rostrum, and that the sub-rostral process is the lowest and smallest of the series. Fig. 22 a represents a crotchet, from a specimen 136 mm. long. This is similar in form to that of A. marina (Fig. 19), and does not present any dilatation of the post-rostral region (contrast the crotchets of ^ The neuropodia of A. assimilis ^ndi pusiUa, being much shorter than those of A. marina, contain fewer crotchets; an average number, in specimens about five inches long, is 30 to 40 in each neuropodium of the branchial 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
