MICROSCOPIC FAUNA AND FLORA 

 OF MARKINGTON, MID-WEST YORKSHIRE. 



Rkv. J. STANLEY TUTK, B.A., 

 i'ictir of Marki}igton, near Ripley. 



The following is a list of the animals and vegetables — Infusoria and 

 Algce— which I have found in and now record for the Markington 

 district. There are some other Algas, which I have not identified. 

 Those which I have mentioned do not by any means always occur, 

 e.g., I have only once found the Volvox globafor, and then it was 

 abundant. I think the same year or the year following the farmer 

 in whose field the pond containing the Volvox was, cleaned it out, 

 and so destroyed any prospect of a second growth of plants. One 

 year the mill-race was filled with the long filaments of Spirogyra ; 

 in the following years they have not occurred there, though they are 

 common in many of the pools elsewhere. Above a certain by-wash 

 the Diatomacete are more various and beautiful than they are below. 

 So there is a chance of disappointment or of unlooked-for success. 

 Still, these I have set down have undoubtedly existed here, and future 

 searchers may find, I dare say, many new forms. 



The plant I mentioned as rare, viz., Ophiocytium majiis, is men- 

 tioned in the ' Micrographic Dictionary' as a genus of unicellular 

 Algae, of which several species are described not yet noticed in 

 Britain (Bibl. Nageli). I think, too, that there are two species of 

 Vducheria, though I have named only one. 



The more common Infusoria I have not mentioned ; only the 

 rarer kinds. There are more species of the Rotatoria, a Water Bear, 

 and Entomostraca, which are common, but except Daphnia pulex 

 and Cyclops quadricornis, I have not identified any. 



ANIMALS. 

 Amoeba diffluens. Markington. 

 Actinophrys viridis. In pools of stagnant water near farms, 



Markington. 

 Distigma viride (?). Markington. 

 Arcella vulgaris. Markington Beck. 

 Arcella aculeata. Do- 



Dileptus folium. Markington. 

 Stentor polymorphus. Ditch, with clear water, but not flowing, 



Markington (Westerns Pasture). 

 Vorticella microstoma. Stagnant water, Markington. 



May 1890. 



