Hydromorina.'] infusorial ANiMArcuLES. 139 



Genus Anthophtsa, (D.) — Animals ovoid or pynfonn furnislied 

 with a single flagclliform filament, and collected at the extremities 

 of a branching stem, or polypidom, secreted by them. Groups when 

 free resembling those of Uvella. 



The ti'ee-like poly^jary is brown at the base, but clearer and even 

 diaphanous at the termination of the branches which appear nodular. 

 The groups of animalcules are easily detached from the stem, and 

 then commence a rotatoiy movement by the action of the filaments 

 of each individual in the group. Detached solitary animalcules move 

 like the common monads ^ ith a single filament. 



The branching support at fij'st soft and gelatinous, becomes by 

 degrees more consistent, brown, and of a horny character, appearing 

 to partake no longer the vitality of the animalcules. 



Only one species is at present known and which is ranged by 

 Ehrenberg under the genus Ejpistylis, along with Vorticellina. 



A. MiUleri = Epistilis? vegetans, (P. 21. f. 2. Ehi\) 



We conclude this family with two new genera, named by Werneck, 

 (Monatsbericht der Berlin Akad. 1841. p. 377.) and thus briefly 

 described. 



Genus AjfCTEnm = Enterodeloiis Bodos, {i.e. according to the no- 

 menclature of Ehrenberg. Bodo's furnished with an intestinal tube, ) 

 with a moveable setacious foot. 



The existence of an alimentary tube (so supposed), removes the 

 Bodo grandis and the six allied species {i.e. the genus Aneyrium,) 

 far above the Monadina, of Ehrenberg, whilst the possession of the 

 setacious foot also indicates a higher oi'ganization. 



Genus Eketes. — Rudder Monadn ; Loncated Phacelomonads. 



Family.— HYDROMORINA. 



Cha/racters. Anenterous Polygastrica without appendages ; body 

 uniform, like that of the Monads ; but by reason of the spontaneous 

 fission being imperfect, foiining a moniliform mass or polypary, 

 lorica absent. Individuals are at periods set free, which commence the 

 same cycle of compound development as the parent being to which 

 they originally belonged. 



The genera belonging to this family, ai'e, Folytoma and Spondylo- 



L 2 



