PEOTOZOA 



2. PODOPHRYA Ehrenberg. Body spherical or ovoid and attached 

 by a stalk; tentacles knobbed and radiating in all directions, either in 

 groups or not : several species ; in fresh and salt water. 



P. gracilis Calkins (Fig. 126). Diameter of body 

 .008 nun. ; stalk very long, measuring .04 mm.: in salt 

 water; Woods Hole. 



3. EPHELOTA Wright. Body more or less spherical, 

 with a stalk; tentacles of two kinds, being either 

 pointed and used for piercing, or short and cylindrical 

 and used for sucking: 8 species; marine. 



E. coronata Wr. (Fig. 127). Diameter of body 

 .09 to .2 mm.; stalk three times as long, and thickest 

 at the body: common at Woods Hole on campanula- 

 rians, hydroids, etc. 



FAMILY 2. ACINETIDAE. 



Body usually in a cup and usually stalked; ten- 

 tacles knobbed; reproduction by endogenous budding, 

 the spores being ciliated: 4 genera. 



1. ACINETA Ehrenberg. Body in a cup with a 

 stalk: several species; in fresh and salt water. 



A. divisa Fraipont (Fig. 128). Body .027 mm. 

 long and does not fill the cup; tentacles long; length of stalk .1 mm.: 

 common on Bryozoa at Woods Hole. 



Fig. 126 



Podophrya gra- 

 cilis (Calkins). 



Fig. 127 



Fig. 128 



Fig. 129 



Fig. 127 Ephelota coronata (Calkins). Fig. 128 Acineta divisa (Calkins). 

 Fig. 129 Acineta tuberosa (Calkins). 



A. tuberosa Ehr. (Fig. 129). Cup very delicate and often difficult 

 to see ; tentacles in usually two groups ; color yellow ; length of body .33 

 mm.: at Woods Hole, in salt water. 



