Arenicola branchialis 139 



Arenicola grubii continued. 



Ash-worth, Fisheries Irel. Sci. Invest. 1908, vii (1909), p. 2 (Gal way ); 



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



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



(I. Chausey ; Tangier, Morocco). 



Beaumont, Proc. R. Irish Acad., ser. 3, v (1900), p. 784 (Valencia). 

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

 Fauvel, Bull. Sci. France Belg., xxxii (1899), p. 292 (Cherbourg) ; Mem. 



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



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

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



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



Horst, Notes Ley den 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 



Ferronniere, Bull. Soc. Sci. Nat. Quest France, ser. 2, i (1901), pp. 39, 53 

 (Loire-Infer.). 



Arenicola bobretzkii 



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



Arenicola cyaneus 



Czerniavsky, Trudi Soc. Nat. St. Petersb. (1868), p. 27 (Black Sea). 



Arenicola cyanea 



Czerniavslcy, op. cit. (1881), p. 354 (Alupka, Black Sea). 



Arenicola dioscurica 



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



Arenicola ecaudata 



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

 (St. Malo ; Roscoff). 



Arenicola ecaudata, partim 



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



Arenicola, eine andere Art - 



Grube, Anat. Physiol. Kiemenwiirrner (1838), p. 3 (Catania). 



Arenicola piscatorum, partim 



Delle Chiaje, Descr. Anim. invert., v (1841), p. 100. 



? Lumbricus marinus, partim 



Delle Chiaje, Mem. Anim. s. Vert., ii (1825), p. 423. 



Ecaudate Arenicola , with first gill on the twelfth * chaetiferous 

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

 segments ; gonads small, as in the caudate species. 



HISTORICAL ACCOUNT. In 1833 Audouin and Milne Edwards 

 recorded observations on Arenicola piscatorum and then proceeded to 



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

 both sides. 



