268 MICROSCOPIC LIFE ON GOUGH ISLAND, SOUTH ATLANTIC OCEAN. 



Trinema enchelys (Ehrbg.).^Not rare; always very small form, as generally 

 found in mosses. 

 ,, lineare, Penard. 



Such are the Rhizopods I found in tlie Gough Island material. They are few 

 in species, and each species is poorly represented in numbers, yet this note may be 

 of some interest, and for several reasons : — 



1. All are species found in Europe (except one, Parmuli7ia britcei), and did 



not dilfer in appearance, except that they were perhaps on the average 

 a little smaller. 



2. They represent, most of them, the typical fauna of mosses, but the scarcity 



(one specimen only) of Dijflugia constricta, a species always so abundant 

 in mosses, is remarkable. 



3. With the exception of the above, no Difflugias were observed. Murray found 



one, '' Diffiugia spec," but it was very likely Phryganella hemisphairica. 

 In Europe, and indeed everywhere, Difflugias (except constricta) are rare 

 in mosses. 



4. One species has never been found before, namely Parmulina hrucei, nov. ; but 



it wdll probably be found somewhere else one day or other.' I append a 



description of this species, or rather of its envelope, which was the only 



part of the organism available. I have taken the liberty of naming it 



brucei, after the leader of the Scotia expedition. 



For other organisms besides Rhizopods I did not look specially, but I found the 



following : — A small rotifer {Brachioniis ?), about twenty specimens of Callidina 



cmgusticollis, Murray, a small diatom which was abundant [Meridion sp.), and a 



good many samples of Merismopeclia — very likely that " blue- green tabular Alga, 



with the cells grouped in multiples of four," ^vhich Murray mentions. 



Parmulina hrucei, spec. nova. 



Enveloppe chitiueuse, jaunatre, en forme de pyramide ou de cone tronque, a 

 base deux fois environ aussi large que le somrnet. De ce sommet, ou plateau dorsal, 

 partent un certain nombre d'aretes (14 a 16 en moyenne), qui descendent vers la 

 face ventrale, et divisent la surface de I'enveloppe en partitions ou facettes a pen 

 pres egales.- 



La surface de cette enveloppe est couverte de ponctuations tres-nettes, serrees les 

 unes contre les autres, disposees regulierement. 



1 I have this year (1911) found this same species, though very likely a special variety of it, in mosses collected 

 by Dr Fchrmann at an altitude of 3000 metres, on the Andes of America (Colombia). 



2 II est possible cependant que ces aretes ou facettes n'existent pas toujours ; elles manquaient dans les 

 exemplaires trouves plus tard dans les Andes. Dans cette derni^re station (Parano, Cruz Verde ; Colombie), 

 d'ailleurs, on pouvait constater d'autres difterences, surtout dans les ponctuations caracteristiques du plateau dorsal, 

 et peut-etre y a-t-if la une variete speciale. 



