for the Microscope. 101 



799. The STEPHANOCEROS (Stephanoceros Eichornii). 

 Enclosed in a transparent sheath. Animal club-shaped, 

 with five long ciliated arms. Attached to water-weeds, &c. 

 (PI. X., fig. 23.) 



800. HORNWORT LIMNIAS (Limnias ceratophylli). 

 Enclosed in a brownish case, smooth externally. Wheel 

 two-lobed. On hornwort and other water-plants. 



So i. The MELICERTA (Meliccrta ringens). Enclosed 

 in a case, which is brownish red, granulated externally. 

 Wheel four-lobed. On duckweed, &c. 



802. HORNED FLOSCULE (Floscularia cornuta). En- 

 closed in a thin transparent case. Head surrounded by 

 five rounded lobes, each with a tuft of long cilia, and a 

 supplementary naked horn outside one of the lobes. 

 Amongst water-plants. (PI. X., fig. 21.) 



803. BEAUTIFUL FLOSCULE (Floscularia ornata). With 

 five lobes, one higher than the rest, similar to the last. 



804. FUNNEL ROTIFER (Hydatina scuta). Conical and 

 transparent, with a wreath of cilia at the broad end. (PI. 

 X., fig. 12.) 



805. FURCULARIA. Four species of this genus are 

 recorded in Britain, but none of them appear to be very 

 common. 



806. LONG-TAILED ROTIFER (Monocerca rattus). Ob- 

 long, with one eye-spot, and a long thin foot, the length of 

 the body. Amongst Confervas. (PI. X., fig. 18.) 



807. VOLVOX PARASITE (Notommata parasitd), Oval, 

 with a short foot. Wheel of three or four lobes. Lives 

 in the globes of Volvox globator. 



808. LONG VOLVOX PARASITE (Notommata petromyzoti). 

 Elongated, narrowed towards each end. Also parasitic 

 in Volvox. 



809. EARED ROTIFER (Notommata aiiritd). Often pear- 

 shaped; sometimes cylindrical. Head with two retractile 

 ear-like lobes. Amongst Conferva;. (PI. X., fig. i.) 



8 10. OBLONG SYNCH^ETA (Synchceta oblongd). Oblong, 

 with six rotary clusters, and armed with four styles. In 

 spring, amongst Conferva;. 



811. TWO-HORNED SYNCHJETA (Synchceta pectinata). 



