LOBOSA. 



Sub-Order II. Filosa. Pseudopods delicate and 

 thread-like, having the same general constitution and 

 form as in the shell-covered Lobosa, but never coarse 

 or lobose, acutely forking, and becoming finer as they 

 branch, rarely anastomosing. 



Endosarc and ectosarc not distinctly differentiated, but 

 the entire sarcode is homogeneous and resembles the 

 endosarc of the Lobosa. Large, central, clear nucleus ; 

 several peripheral contractile vesicles just below the 

 nucleus. Reproductive process not fully made out. 



SUB-ORDER LPROTOPLASTA LOBOSA. 



Synops'is of the Genera of Lobosa. 



( Form protean, ectosarc hyaline, endosarc PAOB - 



granulous, Amoeba, 4 



Similar to Amoeba, but with trailing, fila- 

 mentous appendages, Oitramceba, 6 



Similar to Amoeba, but leech-like in form, 

 somewhat differentiated into anterior 

 and posterior parts, sometimes villous 

 behind, Pelomyxa, 7 



Similar to Amoeba, but slug-like, posterior 

 papillose, body bristling with cils,* often 

 with spicules, Dinamaeba, 9 



Discoidal, endosarc distinctly colored, ec- 

 tosarc colorless, Hyalodiscus, 10 



* Cils, a word used by Professor Leidy instead of cilia, meaning 

 minute linear appendages, resembling fine hairs. 



