SPIROTRICHA, HYPOTRICHA 



673 



Genus Epiclintes Stein. Elongate; spoon-shaped; flattened ven- 

 tral surface with more than 2 rows of cirri; 2 marginal rows; frontals 

 undifferentiated; anals; no caudals; salt or fresh water. A few species. 



E. pluvialis Smith (Fig. 316, d). About 375/x long; fresh water. 



Fig. 316. a, Urostyla caudata, X90 (Stokes); b, Kerona polyporum, 

 X200 (Stein); c, Keronopsis rubra, X270 (Entz); d, Epiclintes pluvialis, 

 XlOO (Smith); e, Holosticha vernalis, X220 (Stokes); f, H. hymenophora, 

 X180 (Stokes); g, Paraholosticha herbicola, X200 (Kahl); h, Trichotaxis 

 stagnatilis, Xl90 (Stokes); i, Balladyna elongata, X800 (Roux); j, Pleu- 

 rotricha lanceolata, X250 (Stein); k, Gastrostyla muscorum, X200 (Kahl). 



Genus Holosticha Wrzesniowski. Three frontals along anterior 

 margin; 2 ventral and 2 marginal rows of cirri; anals; fresh or salt 

 water. Numerous species. 



H. vernalis Stokes (Fig. 316, e). 7 anals; about 180^ long; shallow 

 pools with algae. 



H. hymenophora S. (Fig. 316,/). 5 anals; 2 contractile vacuoles; 

 160-200/i long; shallow pools. 



