DESCRIPTIONS OF EARTHWORMS. 77 



NOTE V. 

 DESCRIPTIONS OF EARTHWORMS. 



BY 



Dr. R. HORST. 



VI. 



On A nt eu s g ig a s Perrier. 

 (Plate 6). 



Last year our Museum received a very large earth- 

 worm, collected in Brazil by Mr. H. du Dreneuf. I believe 

 the specimen must be identified with Anteus gig as , though 

 it does not agree in all its characters with the descrip- 

 tion given by Perrier of this species '). This description 

 was based upon two specimens , one from Cayenne , the 

 other from an unknown locality. Although our worm is 

 not in a very good state of preservation , so that some 

 interesting points of its organisation remained unknown to 

 me, my examination has enabled me to add something to 

 our rather scanty knowledge of this species , and to come 

 to a certain conclusion about the question of its supposed 

 identity with Microchaeta rappi. 



Vaillaut ^) pointed out that , according to Perrier's des- 

 cription , Anteus gigas agrees in many respects, i.e. the 

 arrangement of the setae, the indistinctness of the clitel- 

 lum, the thick anterior septa, the shape of the nephridia, 



1) Nouv. Archives du Museum d'hist. natur de Paris, T. VIII, 1872, p. 49, 

 pi. 1, fig. 13 and 14. 



2) Suites a Buffon, Anneles, 1889 (quoted after Benham). 



Notes frora the Leydeii Mtiseu.111, Vol. XIII. 



