Report upon the Oligochaeta. !> 



FAMILY MEGASCOLECIDAE. 



SUB-FAMILY AGANTHODBILINAE. 



EODRILUS AKUNDINIS (Beddard). 



1897. Acanthodrihis arundinis + A. arenarins + A. falcatus, Beddard 



in P. Zool. Soc., London, 1897, pp. 339, 340, 341. 

 1900. Notiodrilus arundinix + N. areiiarius + N. falcatus, Michaelsen 



in Tierreich, x., pp. 132, 133. 



1907. ? Eodrilus (? Microscolex nnnnlinis + Eodriln* iiri'iuiriits + '.' 

 Eodriln* (? Microscolex) fn I rains, Michaelsen in Fauna 

 Stidwest-Australiens, i., pp. 141, 143. 



Loc. Cape Flats, Roiide Vley, near Zeekoe Vley (types of Acait- 

 tliodrihts anuidinis), E. from Wynberg (types of A. art'in/riiis), 

 and 1 mile E. from Retreat Station (types of A. falcatus) . 



Cape Flats, near Zeekoe Vley ; Dr. F. Purcell, leg. 16, xii., 1898. 



Cape Flats, f mile SB. to S. from Eetreat Station ; Dr. F. 

 Purcell, leg. 16, xii., 1898. 



Cape Flats, 1 mile SE. from Eetreat Station ; Dr. F. Purcell, 

 leg. 16, xii., 1898. 



External Characters. Length 35-60 ram., thickness 1-3 mm., 

 number of segments 12-103. 



Colour yellowish grey; without pigmentation. 



Head epilobous. 



Setae separated, in general aa : <tli : be : <</ = 5:3:5:6; dd -= ca. 

 f /j. ; ab diminishing toward the male pores. 



Clitellum ring-shaped, at the ^ 13 or 13-16 segments. 



Prostate pores in b. 



Seminal furrow laterally convex. 



Spermathecal pores at 7/8 and 8/9 in b. 



Copulatory tubercles varying in number and in arrangement, 

 mostly unpaired, at the 8-11 and 16-23 segments or a part 

 of them, often together with paired ones which most frequently 

 are found at the male area, but sometimes also at the 10 segment. 



Internal Anatomy. Septa 6/7-11/12 very little thickened. 



Alimentary tract : A small but distinct and glittering gix/ard 

 in the 5 segment; no calcit'erous glands. 



Excretory organs : Meganephridia without terminal bladder. 



Male organs : Two pairs of free testes and spermiducal funnels. 

 Three pairs of sperm-sacs in the 9, 11, and 12 segments at the sejiin 

 9/10, 10/11, and 11/12. (In the 10 segment free masses of develop- 



