. Catalogue of the Chaetopoda in the British Museum (Natural History). Oligochaeta; Polychaeta. Arenicola glacialis 113 The original specimens were sent recently to tlie writer, who has shown that A. glacialis is a distinct species, and has given the first description of its more important features. -Pp. Not'.-- ---. Fig. 47.—A. glacialis. Diagram of a dissection of the anterior portion. Br'. First gill; Dorsal blood- vessel ; H. Heart; Not'. First notopodium ; Nph>. First nephridiuni; ( (Esophageal gland ; PR. Prostoniium ; S>. First septum ; Septal pouch. Ee


. Catalogue of the Chaetopoda in the British Museum (Natural History). Oligochaeta; Polychaeta. Arenicola glacialis 113 The original specimens were sent recently to tlie writer, who has shown that A. glacialis is a distinct species, and has given the first description of its more important features. -Pp. Not'.-- ---. Fig. 47.—A. glacialis. Diagram of a dissection of the anterior portion. Br'. First gill; Dorsal blood- vessel ; H. Heart; Not'. First notopodium ; Nph>. First nephridiuni; ( (Esophageal gland ; PR. Prostoniium ; S>. First septum ; Septal pouch. Eemaeks on the Type Specimens.—Of the five original examples only one is complete, another is in two parts held together by a strand of muscle, the other three are in pieces. All are dark brown or nearly black in coloiu-. The complete specimen, shown I. 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