362 On a Palythalamian from Transylvania. 



4. Forms which have hitherto heen found only in saline 

 inland icaters, 



Phuroplirys helix, Entz. 



Entzia tdrastomeVa, gen. et sp. nov. 



OrhulineUa smartir/dea, Entz. 



Sparotricha vexillifer, Entz. 



Lionotus grandis, Entz. 



Cothurnia imherhU, Ehr , var. curvula. 



Vaginicohi crystalUna, Ehr., var. annul ata. 



VorticeVa microstoma, Ehr., var. halophila. 



nebidifera, Ehr., var. salina. 



The representatives of tlie first two groups are all very 

 common species, of wliich I have nothing to say. The cilio- 

 flagellate Amphidiniam operculatuni^ Clap, and Lachm., 

 included in the third group, is, on the contrary, a very inter- 

 esting form, which merits some notice. This species was 

 discovered by Clapar^dc and Lachmanu in the Norwegian 

 fjords, but then for a long time was not again met with. It 

 is again mentioned by iStein in his quite recent monogra])h of 

 the Cilioflagellata (Arthrodelous Flagellata) of the Baltic ; 

 and Prof. Entz has shown me sketches of this Cilioflagellate 

 which he made in Naples, and, according to an oral commu- 

 nication, he found the species abundantlj- in the Bay of 

 Naples. According to these data Amphidinium ojjerculatum 

 is a marine species, which gives a decidedly marine character 

 to the Protozoan fauna of the salt-pool near Deva. Of this 

 interesting species I will further state that my investigations 

 convinced me that the so-called circlet of cilia consists of a 

 spirally twisted flagellum, which possesses an undulating 

 frill, the oscillations of Avhich simulate the supposed cilia; the 

 same character, as 1 have since learned, has also been demon- 

 strated by Klebs in Hemidinium nasutum, Gymnodiniuni 

 fuscum. and Peridinium hahulatum, so that it seems to me 

 very probable that the Cilioflagellata throughout do not possess 

 a circlet of cilia. 



In the fourth group Entzia tetrastornella is naturally the 

 most interesting form. It is the only known Polythalamian 

 which has been met with except in the sea*, and, together with 

 Amphidinium operculaiian, it speaks decidedly in favour of 

 the proposition laid down by Prof. Geza Entz, according to 

 which the Protozoa of the saline inland waters are more 

 nearly allied to those of the sea tiian to those of the fresh 

 waters. The other Protozoa of this group are species which 



Mag, 



[But see H. B. Bradv, " On Biackish-water Foiauiiniiera/' Ann. & 

 , Nat. Hist. ser. 4, vol. vi. 1870, pp. ^73-309.— W. S. D.] 



