HIRTIDINEA AND OLIGOCH^TA OF THE GREAT LAKES REGION. 171 



Bay, Ohio, August 12, 1898 (67), under a rock, 1 small specimen; Long Point, Lake Erie, Canada, 

 August 23, 1899 (382), two very small si)ecimens referred doubtfully to this species upon the basis of 

 Bete characters; Rondeau Harbor, Ontario (-H8a)i August 30, 1899, 1 specimen. 



LUMBRICID^. 

 Helodrilus caligrinosus (Savigny) jMichaelsen. 

 Hdodrihis raligi7wsus, Michaelscn, Das Tierreich, Oligochaeta. p. 482, 1900. 



Nine specimens of this species were taken near Port Clinton, Ohio, on the bank of the Portage 

 River on August 12, 1895. The clitellum begins on XXVI; on one specimen on XXV. In all other 

 respects they are normal. 



