118 



BULLETIN 120, UNITED STATES NATIONAL MUSEUM. 



body (from fig. 14 in the text of Bezzenberger's paper), 0.0304 mm.: 

 diameter of resting nucleus, 0.01204 mm. ; length of cilia. 0.0042 mm. 



Fig. 84. — Zelleriella antilliensis, X 460 diameters : a and I, cells of the usual 



SORT, a SHOWS THE LINES OF INSERTION OF THE CILIA, 6 SHOWS IN DOTTED OUTLINE 

 THE AXIAL EXCKETORT VACUOLES, ALSO POSTERIORLY A TRAIL OF GRANULES EXTRUDED 

 FROM THE EXCRETORY PORE WHICH EVIDENTLY IS SITUATED AT THE BASE OF A SLIGHTLY 

 DEVELOPED POSTERIOR PROTUBERANCE; C IS A POSTERIOR DAUGHTER CELL; d IS IN LONGI- 

 TUDINAL FISSION. 



The chromatin in the spherical, resting nucleus is in the form of 

 "two or three large plaques at the surface of the nucleus," while 



