690 MR. F. E. BEDDARD ON NEW [Dcc. 20, 



Colour (in spirit, and after corrosive sublimate) purplish on the 

 dorsal surface and yellow beneath ; clitellum yellow. 



Clitellum xiii.-xix. 



On segment xviii. an oval depression 3 mm. wide round the male 

 pores which lie behind the setae ; the latter are less modified than in 

 P. excavatus. 



Oviducal pore single and median, in front of setae of segment xiv. 



Dorsal pores commence v./vi. 



Gizzard in vi. ; intestine commences in xix. No septa very much 

 thickened. 



The last pair of hearts is in segnent xiii. ; the first pair of com- 

 missural vessels in vi. 



Sperm-sacs in x.-xii. 



Nephridia commence in segment iii. 



IV. Genus Moniligaster. 

 13. Moniligaster bahamensis. 



This genus and the closely allied Desmogaster of Rosa have been 

 hitherto only discovered in the tropics of the Old World ; India, 

 Burma, Japan, and the islands of Luzon, Ceylon, and Sumatra have 

 yielded all the known species. In the present paper I describe a 

 form which I received alive together with a number of other species 

 from Kew, whither it had been imported accidentally with plants 

 from the Bahamas. 



The worm is small and slender, measuring about 25 mm. in length. 

 Although this interesting genus has been now so frequently studied, 

 there yet remain a few points upon which further information is 

 desirable : some of the hitherto missing information I am able to 

 supply in the present paper. The genus is chiefly interesting on 

 account of the fact that it upsets in so many points the old distinc- 

 tion between " Terricolse " and " Limicolse." Though terrestrial in 

 habit and in general appearance the anatomical structure is in many 

 respects that of certain aquatic Oligochseta. Our present information 

 upon the genus is derived from the following memoirs : — 



(1) F. E. Beddard. — "Note on some Earthworms from Ceylon 



and the Philippine Islands." Ann. & Mag. Nat. Hist. ser. 5, 

 xvii. p. 89 (1886). 



(2) F. E. Beddard. — " Note on the Reproductive Organs of 



Moniligaster.'" Zool. Anz. Bd. x. p. 678. 



(3) F. E. Beddard. — " On the Structure of three new Species of 



Earthworms, with Remarks on certain points in the Morphology 

 of the Ohgochaeta." Q. J. M. S. vol. xxix. p. 119. 



(4) F. E. Beddard. — " Prehrainary Notes on Oliogochseta. (3) 

 Note on Moniligaster." Zool. Anz. Bd. xii. p. 533, 



(5) F. E. Beddard. — " Observations upon the Structure of a Genus 



of OHgochseta belonging to the Limicoline Section." Tr. R. 

 "Soc. Ed. vol. xxxvi. pt. i. no. 1. 



(6) A. G. Bourne. — "On Indian Earthworms: Pt. L, Prehm- 



