NO, 2174. EARTHWORMS OF THE FAMILY LUMBRICl DAE— SMITH. 179 



in sperm vesicles. Sperm sacs in 9-12; those of 9 and 10 being 

 quite different in form and appearance from those of 11 and 12 which 

 resemble those commonly found in Lumbricidae. The sperm sacs of 

 9 and 10 are digitiform and have a definite lumen extending through 

 the greater part of the length. 



0. lacteum is commonly found under logs, leaf mold, and debris of 

 various kinds, and in compost heaps and to some extent in soil. It 

 is widely distributed in Europe and in various parts of the world 

 where Europeans have settled and has been reported from Illinois, 

 Cahfornia, and Mexico. 



New locahties: Ohio, Indiana, and Colorado. 



Genus LUMBRICUS Linnaeus, emended by Eisen. 



Prostomium, tanylobic. Sperm sacs, three pairs; in 9, 11, and 

 12. Spermaries and spermiducal funnels, enclosed in an unpaired 

 median chamber. Setae, closely paired, posteriad of the chtellum. 

 Linnaeus (1758: 647). Eisen (1874: 45). 



LUMBRICUS RUBELLUS Hoffmeister. 



LMm6ricu« rufteZto HoFFMEiSTER, 1843: 187. 



Length, 7-15 cm. Somites, 95-150. Color, reddish-brown or 

 violet; more pronoimced on antero-dorsal surface. Prostomium, 

 tanylobic. Setae closely paired; aa: ab\hc: cd:dd = b:\\b\ ^-.IQ. 

 ChteUum on 27-32, exceptionally beginning on 26. Tubercula pub- 

 ertatis on 28-31. First dorsal pore on 7/8. Spermiducal pores on 

 15 and inconspicuous; between 6 and c. Oviducal pores on 14, 

 shghtly dorsad of I. Spermathecal pores on 9/10 and 10/11, in line 

 with cd. Septa 6/7-8/9, somewhat thickened; others but very httle, 

 except in parts adjacent to the attachments of the sperm sacs. 

 Longitudinal partitions of the calciferous gland, about 60 in number. 

 Sperm sacs in 9, 11, and 12. Spermathecae in 9 and 10, in the speci- 

 mens examined. 



L. ruhellus in the collections of the writer have mostly come from 

 under debris along shores. The species is widely distributed in Eu- 

 rope and Siberia; and in North America has been reported from 

 Newfoundland, California, Oregon, and Washington. 



New locahty: Michigan (Cheboygan and Gogebic Counties). 



LUMBRICUS CASTANEUS (Savigny), 



Enterion castaneum Savigny, 1826: 180, 181. 

 Lumbricus castaneus Ducfes, 1837: 17, 22. 

 Lumbricus purpureus Eisen, 1871: 956. 



Length, 3-5 cm. Somites, about 90. Color dorsally, chestnut 

 brown to brown violet. Prostomium, tanylobic. Setae, closely 

 paired; aa:ab:hc:cd:dd = 4:1:4:^: 16. Chtellum on 28-33. Tuber- 



