1897 



MICROSCOPICAL JOURNAL. 



147 



resj)ect. The Sticliotricliii secunda — Perty, and f^tichot- 

 richa aciileata — Wi'z, are often seen in tlie pond waters 

 in New Orleans and bear only a superficial resem blance 

 to this form. 



Family. — Oxytrichidte. S. K. 



(jreuus. — Oxytriclia. Ehr. 



Species. — Oxytriclia furcatus. (fig. 19.) 



Body elliptical, l)otli extremities evenly rounded; very 



12. — Eiitosiplion eniarginata. x 1300. 

 13. — Enchelys audobonii. x 500. 

 14. — Holophrya pogonias. x 150. 

 15. — Colei)s striata, x .^ys- 

 16. — Lembus aitenuata. x 730. 

 17. — Trocliilia fluviatilis. x 740. 

 18. — Stichotricha opisthotonoides 

 19. — Orytricha furcatas. x 225. 



X ■75- 



soft and flexible, less than two and a half times as lon^ 

 as wi<le: the lelt hand border slightly concave anteriorly 

 li[) crescentic and (;ons[)icuoLis; peristome extending to 

 centre of body and strongly curved to oral aperture; the 

 right hand border of peristome bearing an undulating 

 membrane; frontal styles, eight and arranged as on Sty- 

 tonycdiia mytiliis, I'^hr.; the three most anterior uncinate, 

 and the remaining five furcated; ventral series arranged 

 as on Stytonychia mytilus, Ehr., and all furcated; anal 



