AND THEIR INHABITANTS. 



241 



planorbis, and the little Neritina fluviatilis, and little 

 fresh-water limpets, Ancylus fluviatilis, adhered to 

 them also. The Vitrina pelludda I once found on 

 the Yellow Iris. The Water Persicaria, Polygonum 

 amphibiuiU) noticeable from its bright pink flowers, was 



CENANTHE CROCATA. 



likewise common in a ditch adjoining the Ouse. The 

 Hairy Willow-herb, Epilobium hirsutum, was wildly 

 luxuriant, and at the end of the month the Rattle and 



