352 



DESCRIPTION OF 



[^Rotatoria. 



Eyes 

 absent 



The genera are related as follow 



{; 



teeth present 



teeth absent Enteroplea. 



jaw many-toothed Hydatina. 



jaw single-toothed Pleurotrocha. 



frontal Furcularia. 



foot styliform Monocerca. 



r frontal cilii, no uncini or styles Notommata. 



one ( 



cervical ( 



foot 



Eyes / 

 present 



. . td\ ^"^oiit^^ cilii and styles Synchaeta. 



L frontal cilii and uncini Scaridium. 



no foot, but a many partile beard, or fins Polyarthra. 



foot furcated Oiglena. 



frontal ( f beard Triarthra. 



no beard Rattulus. 



cervical ; foot furcated Distemma. 



1 foot r 



styliform | 



three 



non- f <^c'^^'<'*' Triophthalmus. 



pedicelled I „ , . , _ , 



L two frontal, one cervical Eosphora. 



two pedicelled frontal eyes, one non-pedicetled cervical 

 eye 



> Otoglena. 



with many simply conglomerate eyes, more than three Cycloglena. 



_with many doubly-conglomerate eyes, more than three Theorus. 



Genus CXLIX. Enteroplea. These rotatory animal- 

 cules have neither eyes nor teeth, but possess a fork-like 

 foot; the cilii of the vibratile organ are disposed in bundles, 

 based in semi-globular muscles. Several longitudinal 

 muscles move the body, others the foot-like pincers. The 

 nutritive organs are a long oesophagus, with a bulb or head, 

 surrounded bya'radiant (vascular?) wreath. The alimentary 

 canal is conical; it has, anteriorly, two ear-like pancreatic 

 glands, is suddenly diminished posteriorly, and terminates 

 where the muscles of the foot commence. The propagative 

 structures are an extended ovarium, two thin Medge-shaped 



