8 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75 



Himalayas, Bengal, Central India, and possibly Borneo; Woodwardia 

 has been taken in South India and Ceylon, Australia, and Java; 

 Notoscolex in South India and Ceylon, the eastern Himalayas, 

 Australia, and New Zealand ; Pheretima in southeastern and eastern 

 Asia; Perionyx in India, Australia, Sumatra, and Java; Octochaetus 

 has been found elsewhere only in New Zealand and India (all of the 

 Indian and Burmese species belong to the distinct subgenus Octo- 

 cJiaetoides); Ramiella and Eutyphoeus have been collected only in 

 India. 



Interesting theories have been put forward to explain these 

 relationships. Discussion of these theories so far as Burma may be 

 concerned is unprofitable at present and will be reserved for some 

 future paper. 



SUMMARY 



1. The number of endemic species common to both the central 

 basin region and the Peripheral Hill region is small. Less than half 

 of the peregrine species may be said to occur in both regions. 



2. The Moniligastrinae with the exception of Drawida are confined 

 to the "Hills." One species of Drawida has been found in both 

 "Hills" and ''Plains." 



3. The Octochaetinae except Ramiella are restricted to the central 

 and southern portions of the central region. Ramiella is limited to 

 the "Hills." 



4. In the large subfamily Megascolecinae, Woodwardia, Notoscolex, 

 and Perionyx (except two peregrine species) are confined to the periph- 

 eral region, while Pheretima is present in both sections. 



5. The dominant genus in the central plains seems to be Eutyphoeus, 

 in the "Hills" possibly Notoscolex. 



6. The endemic species belong to genera which occur outside of 

 Burma in one or more of the following areas: Sumatra, Java, and 

 Borneo; South India and Ceylon; Australia and New Zealand; the 

 Malay Archipelago; the eastern Himalayas, including Abor and 

 Assam. 



SYSTEMATIC CONSIDERATIONS ^ 



DRAWIDA CONSTRICTA, new species 



Description oj the type-specimen, external characteristics (Cat. No. 

 19251, U.S.N.M.).— Length, 73 mm. Diameter, 3-33^ mm. Number 

 of segments, 148. Color: Grayish, except on the clitellum where the 

 segments are deep red. 



The prostomium is prolobous. 



'It should be pointed out that the collections on which this portion of the paper is based were made 

 for the writer by various individuals, none of whom have had biological or other scientifie training. In 

 some instances the collecting was done in quite unfavorable months. This will explain the necessity for 

 certain remarks hereafter. 



