. An introduction to zoology, with directions for practical work (invertebrates). . FiQ. 40.—The upper eud of the empty Fig. 41.—Pectinaria removed tube of Terebella conchilega. from its tube. (From the Cambridge Natural History.) on either side below the head are two pairs of short bladder- like gills. The body ends in a little disc which closes the narrower end of the tube. By means of its bristles the worm burrows, head downwards, in the sand, the narrower end of the tube alone projecting above the surface. Sabella is a worm which builds a tube of mud. It is a social form, and clusters of t
. An introduction to zoology, with directions for practical work (invertebrates). . FiQ. 40.—The upper eud of the empty Fig. 41.—Pectinaria removed tube of Terebella conchilega. from its tube. (From the Cambridge Natural History.) on either side below the head are two pairs of short bladder- like gills. The body ends in a little disc which closes the narrower end of the tube. By means of its bristles the worm burrows, head downwards, in the sand, the narrower end of the tube alone projecting above the surface. Sabella is a worm which builds a tube of mud. It is a social form, and clusters of the tubes of some species of Sabella often exist side by side, and, with the sand that gets washed in between them, cause the formation of such firm masses that they can only be removed with a hammer and chisel. The beautifully coloured gills are Sabella. J 4. 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 Lulham, Rosalie Blanche Jermaine. London, Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherlondo, bookyear1913
