| OCR Text |
Show 34 MR. F. E. B E D D A R D O N E A R T H W O R M S [Jan. 5, this point I could not be certain of the presence of cilia. The intestine has no typhlosole. The brain is situated further back in the body than in the last species ; it lies towards the posterior boundary of segment ill. The first intersegmental septum separates segments v./vi. ; the septa separating segments vi./vii., vii./viii., viii./ix., ix./x., x./xi., xi./xii., xii./xiii., xiii./xiv., xiv./xv. are shorter than those which follow, but there is not a very great increase of thickness in their Fig. 2. Penial seta of Microscolex poultoni. muscular layers-not so much, for instance, as in the last species. The ventral insertion of the anterior septa does not coincide with the intersegmental furrows. The nephridia commence in segment hi. Their structure appears to be identical with that of the last described species. The first |
