Arenicola branchialis 139 



Arenicola grubii — continnecl. 



Ashworth, Fisheries Irel. Sci. Invest. 1908, vii (1909), p. 2 (Galway) ; 



Mitt. Zool. Mus. Berlin, iv (1910), p. 353 (St. Malo; Roscoff; Nice; 



Lesina (Adriatic)); Ann. Sci. Nat. Zool., scr. 9, x (1910), p. 113 



(I. Chausey; Tangier, ^Morocco). 

 Beaumojit, Proc. E. Irish Acarl., ser. 3, v (1900), p. 784 (Valencia). 

 Elders, Zeits. Wiss. Zool., liii, Suppl. (1892), p. 249, taf. xiii, figs. 33-37. 

 Fauvel, Bull. Sci. France Belg., xxxii (1899), p. 292 (Cherbourg) ; ]\Iem. 



Sec. Nation. Sci, Nat. Math. Cherbourg, xxxi (1899), p. 166; Bull. 



Inst. Ocean. IMonaco (1909), no. 142, p. 8 (Berlinga Is.). 

 Gamhlr and Ashworth, Q. J. Micr. Sci.. xliii (1900), pp. 429, 541, pi. xxii, 



fig. 3 (I. of Man; Jersey; Port Appin). 

 Horst, Notes Leyden Mus,, xi (1889), p. 43, pi. iii, figs. 12-15 (gills, chaetae). 

 Jourdan, C. R. Acad. Sci. Paris, xcviii (1884), p. 757 (Marseilles). 

 Lo Bianco, Atti R. Accad. Sci. Fis. Mat. Napoli, v, ser. 2, no. 11 (1893), 



p. 10, tav. ii, fig. 2; Mitt. Zool. Stat. Neapel, xiii (1899), p. 484: xix 



(1909), p. 577. 



Arenicola grubei — 



Fcrronnicre, Bull. Soe. Sci. Nat. Onest France, st'r. 2, i (1901). pp. 39, 53 

 (Loire-Infer.). 



Arenicola bobretzkii — 



C.icrniavskjj, Bull. Soc. Imp. Nat. Mosc, Ivi (1881), p. 355 (Sevastopol), 



Arenicola cyaneus — 



Czrrniavshif, Trudi Soc, Nat. St. Petcrsb. (1868), p. 27 (Black Sea). 



Arenicola eyanea — - 



C::rrniavsl-ij, oj}. cit. (1881), p. 354 (Alupka, Black Sea). 



Arenicola dioscurica — 



Czerniavshij, op. cit. (1881), p. 355 (Suchum, Black Sea). 



Arenicola ecaudata — 



Gruhe, Schles. Ges. Vaterl. Cultur, Abt. Nat. (1872). pp. 91, 106. 142 

 (St. j\Ialo ; Roscoff). 



Arenicola ecaudata, partim — 



Ives, Proc. Acad. Nat. Sci. Philad. 1890 (1891), p. 74. 



Arenicola, eine andere Art - 



Gruhe, Anat. Physiol, Kiemenwiirmer (1838), p, 3 (Catania). 



Arenicola piscatorum, ^^rtr^iwi — 



DcUc Chiajr, Descr. Anim. invert., v (1841), p. 100. 



? Lumbricus marinus, imrtim — 



Dclle Chiajc, Mem. Anim. s. Vert., ii (1825), p. 423. 



Ecaudate Aroiicola, with first gill ou the twelfth ^ chaetiferous 

 segment ; five pairs of nephridia, which open on the liith to the ninth 

 segments ; gonads small, as in the caudate species. 



Historical Account. — In 1833 Audouin and Milne Edwards 

 recorded observations on Arenicola pificatorum and then proceeded to 



' The first gill is often small, and is not uncommonly missing on one or 

 both sides. 



