THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTOEY. 



[FIFTH SERIES.] 

 No. 39. MARCH 1881. 



XVIII. — On some new or Uttle-hnown Infusoria. 

 By C. Meeeschkowsky. 



[Plate Xn.] 



In this article it is ray intention to describe some new species 

 of Infusoria that I have observed in the different seas that I 

 have chanced to visit. There are two species from the White 

 Sea, three otliers from the Black Sea, and two observed in 

 the Bay of Naples. It is especially with the view of en- 

 riching our knowledge of the geographical distribution of the 

 Infusoria that I publish these notes ; it is also with this object 

 that I undertake a revision of certain genera, such as Trochilia 

 and Acinetay so far as the marine species are concerned. 



Although want of time did not allow me to acquire more 

 than a superficial knowledge of the Infusorial fauna of the 

 Black Sea, I nevertheless see with satisfaction all the conclu- 

 sions at which I arrived in my " Studien iiber Protozoa des 

 nordlichen Russlands " more and more confirmed, as I have 

 just shown in a recent note upon the Infusoria of the Black 

 Sea*. There are already ten marine species, all more or less 

 frequent in the Black Sea, that I have never met with in the 

 White Sea j and there is not a single freshwater species ob- 



• " Materiaux pour la faune des Infusoires de la Mer Noire," Travaux 

 de la Societ(5 des Naturalistes a St. P^tersboui'g, 1880. 



Ann. (& Mag. N. Hist. Ser. 5. Vol. vii. 16 



