Annals of the South African Museum. 



The well-preserved material from Liideritzbucht enables rne to 

 revise and correct a previous record from the same locality, and 

 forms the basis of remarks on the distribution of A. assimilis. 



AEENIGOLA LOVENI KINBEEG. 

 HISTORICAL ACCOUNT. 



The species Arenicola lovcni Kinberg was founded on a specimen 

 collected at Port Natal, near Durban ; it was defined by J. G. H. 

 Kinberg in his " Annulata Nova " in the following terms : " Seg- 

 nientum buccale triannulum, segmenta setigera 20 quorum sex 

 anteriora singulumque postremum ebranchiata ; longitudino 395- 

 400 mm. ; latitude 20 mm." Following this diagnosis is the refer- 

 ence "Bug. Eesa, Ann. T. xxviii. 1." This Plate XXVIII. forms 

 one of a series,! containing figures of the Annulata collected on the 

 voyage round the world of the frigate Eugenie, prepared for issue in 

 1857, that is, ten years prior to the publication of the diagnosis of 

 the species. Although copies of the plate were printed, they were 

 never actually published. The figures on this plate relating to 

 Arenicola lovcni were, until recently, known to me only through a 

 short description of them published by Professor Fauvel. { My 

 thanks are due to Professor Theel for his kindness in sending to 

 me a copy of this interesting plate. 



The species A. loveni is not mentioned in the literature, so far as I 

 am aware, from 1867 until 1888, when, in discussing the ecaudate 

 species of Arenicola, Professor von Marenzeller stated that these 

 species may have a chastigerous segment behind the last branchi- 

 ferous one, and that similar cases have been previously met with 

 for instance, A. lovcni Kbg. Judging from the short diagnosis, the 

 only description then available, jj von Marenzeller remarked that 

 A. loveni seems to resemble A. marina, and that the validity of the 

 former species is doubtful. In 1899 Fauvel (loc. cit.) gave a descrip- 

 tion of the figures of .-1. lovcni on the unpublished plate above 

 mentioned. He pointed out that, as far as one is able to judge by 



* Ofversigt Kongl. Vetenskaps-Akad. Furhandl., 1866, p. 355, Stockholm, 1867. 

 f Kongl. Svenska Fregatten Eugenies Eesa omkring Jorden. Zoologi. Annulata. 

 Stockholm, 1857. 



I Fauvel, P., "Observations sur les Arenicoliens," in: Mem. Soc. Nation. Sc. 

 Natur. Math., Cherbourg, t. xxxi., p. 179, 1899. 



Marenzeller, E. ron, " Polychaten der Angra Pequena-Bucht," in : Zool. Jahrb , 

 Abth. Syst., bd. iii., pp. 14. 15. Jena, 1888. 



II Von Marenzeller had not access to a copy of the unpublished plate. 



