176 
MICRO-ORGANISMS IN SUTTON PARK. 
Rotifer vulgaris. 
,, tardus. 
,, macroceros. 
,, mac rums. 
Callidina elegans, 
Polyarthra p latyp ter a. 
Pleurotrocha constricta. 
Notommata forcipata. 
,, saccigera. 
,, collaris. 
,, decipicns. 
,, felis. 
# Two other species. 
Eosphora aurita. 
Mastigocerca carinato. 
Euchlanis luna. 
Dinocharis tetractis. 
Colurus caudatus. 
,, deft exus. 
And a new Anureea. 
Chaetonotidse :— 
CJuetonotus lams. 
,, hystrix. 
The great variety of rotifers is very remarkable. They 
have all been seen and identified by Mr. Gosse except Ptygura 
melicerta, which Dr. Hudson has seen. Of the new ones, 
Notommata spicata was named by Dr. Hudson ; of the others, 
N. pachyura, N. labiata, Furcularia micropus, and F. Boltoni, 
I give the names which Mr. Gosse has proposed for them, 
and 1 look with interest to see his descriptions of them in 
their Monograph of the Kotifera, which is now being pub¬ 
lished. Two other species, N. saccigera and N. felis, had not 
been previously seen by Mr. Gosse. 
Tardigrada or "Water-bears. 
Occasionally I found some specimens of this group, which 
I think must be Macrobiotus Hufelandii, but I am not quite 
certain of the species. The most complete account of this 
group that I know of is given by M. Doyere in the “ Annales 
des Sciences Naturelles,” 1840. A translation of this memoir, 
with reprints of the figures, would be very welcome to pond- 
liunters. 
Naidina. 
Chcetogaster diaphanus. Slavina appendiculata. 
Nais proboscidea. ,, lurida. 
,, hamata. AElosoma quaternarium. 
Professor Pay Lankester identified for me Nais hamata; I 
have not heard of its having been found elsewhere in England. 
It is figured and described in my “ Portfolio,” No. II. 
There were a few entomostraca, such as Cyclops, Cypris, 
and Lynceus, but I have not identified the different species. 
* Ibid. Furcularia Boltoni and Furcularia micropus. Mr. Gosse 
records another new one, Pedetes saltator, allied to Triarthra , but with 
only two styles instead of three. 
