. Catalogue of the Chaetopoda in the British Museum (Natural History). Oligochaeta; Polychaeta. A rcn icola loi 'eni 103 Arenicola loveni Kinberg, emend. Plate III; Plate IV, Fig. 11. Kinberg, Ofvers. Kongl. Fih-liandl., 1866 (1867), p. 355 (Port Natal, Durban); Eug. Kesa, Zool., vii, Annul. (1910), p. 78, t. xxix, 1. Ashworth, Arkiv fiir Zool., vii (1910), no. 5, 1 pi. (Saldanha Bay); Ann. S. Afr. Mus., xi (1911), p. 1, pi. i (False Bay). Fauvd, Mem. Soc. Nation. Sci. Nat. Matli., Cherbourg, xxxi (1899), p. 179. Caudate^vir«M'co/a with nineteen cliaetiferous segments; thirteen pair
. Catalogue of the Chaetopoda in the British Museum (Natural History). Oligochaeta; Polychaeta. A rcn icola loi 'eni 103 Arenicola loveni Kinberg, emend. Plate III; Plate IV, Fig. 11. Kinberg, Ofvers. Kongl. Fih-liandl., 1866 (1867), p. 355 (Port Natal, Durban); Eug. Kesa, Zool., vii, Annul. (1910), p. 78, t. xxix, 1. Ashworth, Arkiv fiir Zool., vii (1910), no. 5, 1 pi. (Saldanha Bay); Ann. S. Afr. Mus., xi (1911), p. 1, pi. i (False Bay). Fauvd, Mem. Soc. Nation. Sci. Nat. Matli., Cherbourg, xxxi (1899), p. 179. Caudate^vir«M'co/a with nineteen cliaetiferous segments; thirteen pairs of gills, the first gill on tlie seventh segment, gills large and pinnate; the median lobe of the prostominm is large, the smaller lateral lobes are of almost nni- Pr. "h-Seg! form width, that is, they are not dilated or lol)ate at their anterior ends; neiiropodia are clearly visible in each segment, those of the brancliial and of the two prebranchial segments are long dorso-ventrally and almost reach the mid-ventral line ; each noto- podial seta bears numerous finely-toothed crests or " Siige- blatter" at regular intervals along the distal third of its shaft, and this part of the seta presents a well-marked trans- verse striation ; - five pairs of nephridia, which open on the fifth to the ninth segments ; one pair of oesophageal glands ; two enormous septal pouches which pass through apertures in the second septum and terminate imme- diately in front of the third septum; a pair of closed statocysts, each containing a single large secreted statolith. HiSTorjCAL Account.—The species Arenicola loveni, which was founded on a specimen collected at Port Natal, near Durban, was defined by Kinberg in the following terms: " Segmentum bnccale ' Worthy of note is the very large number of tail segments in this species ; in three specimens there were respectively 175, 186 and 205 septa in the tail, indicating as many segments. • See Fig. 11, p.
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