. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. structure of the body-wall, and supplement the description in the ' Proc. Royal Soc. Edinb.,' since there was no opportunity for the illustration of that paper otherwise than by the coloured drawings at the reading of it. If the oblique muscle (m) in Linotrypane (fig. A), passing upwards on each side, be greatly strengthened, the upper region of the body will be drawn inwards and downwards, whilst a ventral ridge (bounded superiorly by the oblique muscle) will be formed at eac
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. structure of the body-wall, and supplement the description in the ' Proc. Royal Soc. Edinb.,' since there was no opportunity for the illustration of that paper otherwise than by the coloured drawings at the reading of it. If the oblique muscle (m) in Linotrypane (fig. A), passing upwards on each side, be greatly strengthened, the upper region of the body will be drawn inwards and downwards, whilst a ventral ridge (bounded superiorly by the oblique muscle) will be formed at each side. This is just what happens in a new Ammotrypane from Connemara (fig. B), in another from Kil- libegs Harbour, and a third (noticed in the former paper) from Valentia. The great oblique muscle springs in each case from the raphe at the nerve-cords, and passes upwards and outwards to the body-wall. Moreover, between the extremes of structure (as shown in Linotrypane on the one hand, and Ophelia limacina with its two prominent ventral ridges, or Ammotrypane aulogastev with its single basal and two terminal Ann. & Mag. N. Hist. Ser. 4. Vol. xvi. 26. 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 London, Taylor and Francis, Ltd
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