. Annals of natural history. Natural history; Botany; Zoology; Geology. Dr. Johnston on the Irish Annelides. 175 Hab. Apparently not unfrequent on the Irish coast. Strangford Lough, and elsewhere on the coast of Down, Wm. Thompson, Esq.; Belfast Bay, Dr. Drummond. Body vermiform, flattish or rarely subcylindrical, as thick as a goose-quill, only slightly tapered backwards, smooth, flat on the ventral surface, which has the median line faintly im- pressed. Head small, armed as usual: eyes very large : jaws small, with brown apices,, serrated along the edge to the tip or nearly so: tentacular ci
. Annals of natural history. Natural history; Botany; Zoology; Geology. Dr. Johnston on the Irish Annelides. 175 Hab. Apparently not unfrequent on the Irish coast. Strangford Lough, and elsewhere on the coast of Down, Wm. Thompson, Esq.; Belfast Bay, Dr. Drummond. Body vermiform, flattish or rarely subcylindrical, as thick as a goose-quill, only slightly tapered backwards, smooth, flat on the ventral surface, which has the median line faintly im- pressed. Head small, armed as usual: eyes very large : jaws small, with brown apices,, serrated along the edge to the tip or nearly so: tentacular cirri 3 times as long as the diameter of the post-occipital segment, which is of about the same length as the next, and rather narrower. Segments about 80, narrowish, thickened above the origins of the feet, which are well-developed and most crowded on the posterior half of the body. Feet of the anterior segments with 3 short obtuse branchial lobes, the dorsal one more prominent than the others, and the setigerous tubercle minute: of the middle and poste- rior feet the branches are widely remote, with the branchial lobes of the superior branch nearly equal, divaricate, and a large brush of bristles between them: the inferior lobe rather small and simple : superior cirrus twice as long as its lobe : inferior cirrus rather short: spines dark brown : bristles nu- merous, pale yellow, smooth and slender. In spirits the worm is generally of a uniform cream or ochre- yellow colour, with a brown line across the front of every seg- ment, and there are two spots of the same or of a rich yellow colour at the base of the dorsal lobe of every foot. These spots appear to be constantly present, and consequently afford a good character of the species, but they are sometimes less perceptible than is desirable. 6. , first and second segments nearly equal; ten- Fig. Nereis fucata. tacular cirri not longer than the head; jaws finely serrulated;. Please note that these images are extract
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