DESCRIPTIONS OF EARTHWORMS. 137 



NOTE XL 

 DESCRIPTIONS OF EARTHWORMS 



BY 



Dr. R. HORST. 



VIII. 



ON A LARGE EARTHWORM FROM BORNEO. 



Moniligaster coeruleus n. sp. 

 (Plate 7). 



My colleague Mr. J. Biittikofer, at this moment making 

 part of an expedition in West-Borneo, collected on the 

 Goenong Kenepai a large earthworm , belonging to the 

 family of the Moniliyastridae. 



Though our knowledge of the organisation of this inte- 

 resting group much increased in the last years thanks to 

 the careful investigations of Rosa, Beddard and Benham, 

 there yet remain some points in their structure upon which 

 further information is desirable; I will therefore not defer 

 any longer to give a description of this new species, for 

 which I propose the name of Moniligaster coeruleus. 



The length of the single specimen is 380 mm. ; on seg- 

 ment XIII it measures 15 mm. in diameter. The body con- 

 sists of about 270 segments. When we except M. Houte- 

 nii ' ) , which probably will prove to belong to an other 

 genus , our worm is the largest iI/o/ii%asfór-species hitherto 



1) Zoolog. Ergebn. einer Reise in Niederl. Ost-Indien, Bd. II, 1892, p. 46. 

 Notes Leyden Museum, Vol. IX, 1887, p. 97, PL I, figs. 1—3. 



]N'otes from tlie Leyden Museum, "Vol. X"VI. 



