. A catalogue of the British non-parasitical worms in the collection of the British Museum. Worms. 149 No. XXIV. Nereis pelagica. Desc. Body from 4 to 6, or, when fully exteuded, even 8 inches hi length, semicylindrical, of the thickness of a goose-quill, tapered towards the tail, of a brown or flesh colour more or less lustrous, with metallic or olive-green reflexions, par- ticularly near the head, and on the anterior margins or sides of the rings. Head trian- gulate (No. XXIV.), obtusely pointed in front. Eyes four. The superior tentacular cirri reach to the margin of the fourth ring, and ar
. A catalogue of the British non-parasitical worms in the collection of the British Museum. Worms. 149 No. XXIV. Nereis pelagica. Desc. Body from 4 to 6, or, when fully exteuded, even 8 inches hi length, semicylindrical, of the thickness of a goose-quill, tapered towards the tail, of a brown or flesh colour more or less lustrous, with metallic or olive-green reflexions, par- ticularly near the head, and on the anterior margins or sides of the rings. Head trian- gulate (No. XXIV.), obtusely pointed in front. Eyes four. The superior tentacular cirri reach to the margin of the fourth ring, and are longer by a third than the second pair, which again are nearly twice the length of the inferior pairs. Mouth with a large proboscis armedwith two strong jaws, around which are placed, on as many swellings, six distinct patches of small black prickles, the side patches larger than the others ; two still smaller patches are situated just under the projecting lobe of the head, while at the very base of the proboscis we find a band of similar prickles, some larger than others, arranged in several irregular series. Jaws falcate, dark browu except at the base, with ten serratures. First ring twice as large as the following, scored with faint whitish lines or sometimes spotted; and oblique No. XXV.—Nereis 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 British Museum (Natural History). Dept. of Zoology; Johnston, George, 1797-1855. London : Printed by order of the Trustees
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectworms, bookyear1865
