ARENICOLA ECAUDATA. 



73 



1888. Arenicola branchialis (partim), Marenzeller. Zool. Jahrb., t. iii, p. 13 (Angra Pequena). 



1891. ,, ecaudata (partim), Ives. Proc. Acad. Nat. Sc. Philad., 1890, p. 74. 



1894, „ „ Bidenkap. Christ. Vidensk. Selsk. Forhandl., No. 10, pp. 39, 112. 



1896. „ branchialis, Michaelsen. J.-B. Koram. Wiss. unters, Kiel, ii, p. 136. 



1897. Clymenides ecaudatus, Mesnil. Bull. Sc. France et Belgique, t. xxx, p. 152, pi. vi, fig. 12 — 14 



(post-larval stage). 

 „ Arenicola branchialis (partim), Fauvel. Proc. 4th Internat. Congr. Zool, p. 229. 

 „ ,, ecaudata, Ashworth. Trans. Liverp. Biol. Soc, xi, p. 30. 



„ „ branchialis (partim), Mesnil. Bull. Sc. Fr. Belg., t. xxx, p. 163. 



1898. „ bucci, Hanna. Proc. Belfast Natur. Field Club, ser. 2, iv, p. 425. 

 „ „ ecaudata, Fauvel. C. R. Acad. Sci. Paris, cxxxv, p. 733. 



„ „ „ Mesnil. Zool. Anzeig., xxi, p. 631. 



„ „ branchialis, De St. Joseph. Ann. Sc. nat., ser. 8, t. v, p. 391, pi. xxii, figs. 201, 202. 



1899. „ ecaudata, Fauvel. Bull. Sc. Fr. Belg., xxxii, p. 289, etc. 



idem. Mem. Soc. Nation. Sci. Nat. etc., Cherbourg, xxxi, p. 163. 

 Mesnil. Bull. Soc. Fr. Belg., xxxii, p. 318. 

 Fauvel. Bull. Soc. Linn. Normand., 5 e ser., t. ii, p. 64, pi. i. 



1900. ,, ,, Gamble and Ashworth. Quart. Journ. Micr. Sci., vol. xliii, n.s., p. 423 et sea., 



pi. xxii, fig. 4, etc. 



Beaumont. Proc. Boy. Irish Acad., ser. 3, v, p. 784. 



1901. ,, Ferronniere, Bull. Soc. Sc. Nat. Ouest Fr., ser. 2, t. i, p. 19. 



Gemmill. Fauna of Clyde Area, p. 361. 

 Journ. M. B. A., N.s., vii, p. 231. 

 Ashworth. L.M.B.C. Memoirs, No. xi, p. 75, etc. 

 Benham. Camb. Nat. Hist., vol. ii, p. 334. 

 Mcintosh. Ann. Nat. Hist., ser. 8, vol. i, p. 382. 



1909. „ „ Ashworth. Fisheries Ireland Scient. Invest., 1908, ii, p. 2. 



1910. „ „ Ashworth. Mitt. Zool. Mus. Berlin, Bd. iv, p. 354. 



idem. Ann. Sc. nat. ; ser. 9, t. x, p. 114. 

 Southern. Proc. Roy. Irish. Acad., vol. xxviii, p. 239. 

 Elwes. Journ. M. B. A., n.s., ix, p. 64. 



1912, „ „ Ashworth. Cat, Chastop. Brit. Mus., p. 132, pi. ii, figs. 7, 8; pi. ix, fig. 19; 



pi. xi, figs. 34, 35 ; pi. xv, figs. 52, 53. 

 1914. ,, „ Southern. Proc. Boy. Irish Acad., vol. xxxi, pt. 47, p. 134. 



Habitat. — Near low-water mark, under stones, on a gravelly beach on a little island 

 in Locbmaddy, and also dredged in the loch. Guernsey, Jersey, and other Channel 

 Islands (W.C.M.) ; Plymouth (Spence Bate, and Rowe) ; Isle of Man ; near Fairhead, 

 Antrim (Ashworth). Great Aran Island (Scharff) ; East Aran Island, Salthill, Co. 

 Dublin ; Rock-pools, Killeany Bay, Co. Antrim ; and Valencia, Bantry Bay (Roy. 

 Irish Acad.) Torquay, burrowing in soft mud and sand under stones in gravel. More 

 characteristic of the southern than the northern shores of Britain, though it is less 

 common than A. branchialis in Guernsey and Herm. 



Abroad it is found in Norway (Rathke) ; Sweden ; Baltic ; French coast ; Medi- 

 terranean ; Black Sea ; Atlantic. 



Head (Plate XCV, fig. 10 a) bluntly conical and slightly flattened, marked by a 

 median and two lateral grooves on each side. The slightly narrower region behind is 

 devoid of feet and bristles, the anterior part being differentiated by the mid- dorsal neck 



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