NO. 2174. EARTHWORMS OF THE FAMILY LUMBRWIDAESMITH. 173 



HELOORILUS (BIMASTUS) PARVUS (Eisen). 



Allolohophora parva Eisen, 1874a: 46. 



Allolobophora (Bimastus) parva Michablsen, 1900: 10, 14, 



Eelodrilus (Bimastus) parvus Michaelsen, 1900a: 502. 



Length, 2.5-4 cm. Somites, 85-111. Color of antero-dorsal part, 

 brown-red. Prostomium, epilobic §-|. Setae closely paired; a little 

 posterior to the clitellum, aa : ab : he : cd : dd= 18 : 4: : 16 : 3 : 48. 

 Clitellum on 24-30. Indefinite ridges (tubercula pubertatis?) on 

 25-29, occasionally beginning on 26 or reaching 30. First dorsal 

 pore on 5/6, Spermiducal pores on 15, between 6 and c. Oviducal 

 pores on 14, slightly dorsad of h. Septa 7/8 and 8/9, slightly thick- 

 ened, others scarcely any. Longitudinal partitions of the calciferous 

 gland, about 40 innumber. Sperm sacs in 11 and 12. Spermathecae 

 lacking. 



H. parvus has been reported from New York, California, Louisiana, 

 Mexico, and Guatemala in North America; and also from China, 

 Japan, and Africa. 



New localities : Michigan and Kansas. 



HELODRILUS (BIMASTUS) BEDDARDI (Michaelsen), 



Allolobophora beddardi Mick A^EhSEN, 1894: 182. 

 Allolobophora {Bimastus) ftecfrfarrfi Michaelsen, 1900: 10, 13. 

 Eelodrilus {Bimastus) beddardi Michaelsen, 1900a: 502. 



Length, 1.7-6.5 cm. Somites, 66-97. Color, reddish antero-dor- 

 sally. Prostomium, epilobic i-§ Setae, closely paired; aaiah : he : 

 ed :dd==26 :4 -.20 :3 : 80. Chtellum, usually on 24-31, but some- 

 times begins on 25 and often invades 32. Tubercula pubertatis ( ?) are 

 indefinite ridges on 24 or 25-30. First dorsal pore on 5/6, Sper- 

 miducal pores on 15, between h and c. Oviducal pores on 14, slightly 

 dorsad of h. Septa, all very thin. Longitudinal partitions of cal- 

 ciferous gland, about 40 in number. Sperm sacs in 11 and 12. Sper- 

 mathecae are lacking. 



Specimens of H. heddardi in the writer's coUection were obtained 

 from wet situations and in decaying logs, stumps, or moss. Tliis 

 species has been reported from Florida, California, and Washington 

 and also from the Hawaiian Islands and Tibet. 



New localities: Michigan, Illinois, and Montana. 



The close resemblance of H. parvus and H. heddardi is apparent 

 from the foregoing descriptions, and Michaelsen (1910:64) has ex- 

 pressed doubt of their real distinctness. A careful comparison of the 

 material available to the writer has convinced him that the species 

 are actually distinct. This material consists of specimens of H. 

 parvus from three States ranging from Michigan to California and of 

 H. heddardi from four States ranging from Florida to Montana. In 

 the latter species, the clitellum imiformly extends a little farther 



