A NEW SPECIES OP MONILIGASTER FROM INDIA. 365 



balsam ; but in other species they are apparent, viz. in M. 

 Barwelli and M. Beddardii. 



The genital pores have the position normal for the genus, 

 and I found it quite easy to recognise all three pairs (fig. 1); 

 with regard to the male pores, however, I was at first deceived 

 by an apparent slit in the hinder part of Somite x ; this 

 turned out to be merely a groove (fig. 1, x), due, no doubt, 

 to the shrinkage of the large mass of muscle attached here 

 around the atrium. The groove is bounded anteriorly by a 

 fairly prominent ridge, and presented the appearance figured 

 by Beddard (5, fig. 1), and indicated by him as the male pore 

 itself. I find, however, that the true pore does not correspond 

 with the position assigned to it by him for M. Barwelli; and 

 in this point I am in agreement with Michaelsen's description 

 of M. japonicus (9), where the pore is at the apex of a small 

 tubercle, in front of which is a transverse groove. It is 

 probably a matter of preservation whether the tubercle is 

 prominent or not. My own specimen was very soft and ill- 

 preserved. 



The position of the atriopore (fig. \, S) between the dorsal 

 and ventral couples of chsetse agrees with that ascribed to it by 

 previous writers. 



The oviducal pores are small but distinct slits in the 

 groove between Somites xi and xii, in line with the ventral 

 couple of chsetse. 



The spermathecal pores are larger, and, as in other 

 species, are in line with the dorsal couple of chsetse ; in M. 

 Deshayesi, however, the pore is stated to be in line with the 

 "inferior chsetse.^' 



II. Internal Anatomy. 



It is to the generative organs that the lumbricologist first 

 turns his attention in opening, or otherwise examining, a 

 worm, and naturally these organs are more engaging, so to 

 speak, in a genus about which such diversity of statement 

 exists, or has till quite recently existed, as to the position of 



