PLATE XXV. 



Figs. 1-8.— NEBELA ANSATA. 250 diameters. 



Fig. 1. Broader lateral view of a well fed, active individual, with Barcode nearly filling tlie shell, 

 extending into (he appendages, and with projected pseudopods. The ahundance of food conceals the 

 nucleus ; a contractile vesicle seen on each side. The large vacuole within the neck was ohserved 

 gradually to approach the mouth of the shell and discharge its contents. Sphagnum, Absecom, N. J., 

 June, 1877. 



Fig. 2. Individual with smaller sarcode attached to the fundus of the shell by tapering threads, 

 and with projected pseudopods. Nucleus visible as a clearer spot ; and a contractile vesicle on each 

 side. Sarcode in the act of discharging excrementitions mat ier. Same locality, September, 1875. 



Fig. 3. Individual in w hich the abundant sarcode is withdrawn from the mouth of the shell 

 The yellow balls apparently food. With the preceding. 



Fig. 4. Individual in which the sarcode is contracted into an oval discoid ball, ready to become 

 encysted ; the mouth of the shell closed by a laminated operculum composed of materials discharged 

 from the sarcode. Fig. 5. Outline of the narrower lateral view of the same. Absecom, N. J., September, 

 1874. 



FiGS.6, 7, 8. Views from three specimens exhibiting the different forms of elements composing 

 the shell. Same locality. 



Figs. 9-14.— NEBELA HIPPOCEEPIS. 



From sphagnum of Absecom, N. J. 250 diameters. 



Fias. 9-11, 13. Three views of the same individual : — tig. 9, broader lateral view, with sarcode 

 extended and pseudopods projected; flg. 10, narrower lateral view of the same; fig. 11, broader lateral 

 view, with the sarcode retracted from the mouth of the shell ; tig. 13, superior view as the animal, 

 presents itself beneath the microscope when in the normal position. August, 1874. 



Figs. 12, 14. Two views of an individual, with the sarcode very small, apparently exemplifying 

 a starved condition. In Hg. 12 the sarcode is greatly extended atid attached to the fundus by long 

 pseudopodal tapering threads. Pseudopods are protruded, and the sarcode is in the act of discharging 

 excrement. In fig. 14 the sarcode is retracted and has formed an attachment to the ends of the horse- 

 shoe appendage. September, 1874. 



