28o 



Memoirs of the Indian Museum. 



[Voi,. I, 



Genital organs were not seen in any of the specimens examined. 



This form thus resembles closely A. hemprichi, according to the diagnosis of the 

 latter as given in Michaelsen' s Oligochseta [3]. The specimens hitherto observed 

 elsewhere would appear, however, to have been considerably larger (2 — 5 mm.), and 

 to have varied more widely (4 — 13) in the number of their segments. 



I. Beddard, F. 



2, Beddard, F. 



3, Michaelsen, W. 



4^ Michaelsen, W. 



5. Michaelsen, W. 



6. Michaelsen, W. 



7, Piguet, E. 



8. Stephenson, J. 



9. Stephenson, J. 



IvITERATURB. 



. . A Monograph of the Order Oligochœta, 

 Oxford, 1895. 



'' Oligochgeta," in Cambridge Natural 

 History, vol. ii, London, 1901. 



''Oligochseta," in Das Tierreich, 

 Berlin, 1900. 



Hamburgische Elb. Untersuchung , iv, 

 Oligochseten, Hamburg, 1903. 



''Zur Kenntnis der Naididen" 

 (Separat- Abdruck aus Zoologica), 

 Stuttgart, 1905. 



" Die Oligochäten Deutsch-Ostafri- 

 kas" (Sonderabdruck aus Zeit. f. 

 wiss. Zool., bd. Ixxxii), Leipzig, 

 1905. 



Observations sur les Naïdidées et revision 

 systématiques de quelques espèces de 

 cette famille, Geneva, 1906. 



" Description of an Oligochsete Worm 

 allied to Chsetogaster," Records of 

 the Indian Musum, vol. i, part 2, 

 1907. 



" Description of two freshwater Oligo- 

 chsete Worms from the Punjab," 

 Records of the Indian Museum, 

 vol. i, part 3, 1907. 



KXPI^ANATION OF REFERENCE LETTERS USED IN THE Pl^ATES. 



The small Roman numerals (i, ii, iii, etc.) indicate the numbers of the segments. 



An., anus; b.c., buccal cavity; ô./., buccal funnel; c, large cells adhering to 

 cœlomic surface of intestinal wall; e.g., cerebral ganglion; cil., cilia; cl., clitellum; 

 con., constriction where fission is about to take place; conn., connecting strands 

 between intestine and body -wall; corp., corpuscles of the body-cavity;'^., duct of 



