Mi'scelianeous. 307 
house-fly often becomes attached to walls and window-panes, in the 
autumn, through the agency of the fungus known as the Sporendo- 
nema. The infested flies on the mulberry-tree were so numerous, 
that perhaps a fourth of the foliage of the lower boughs had from 
one to half a dozen of the flies adherent to each leaf. The fly, 
though a familiar one, is unknown by name to him. It resembles 
the house-ily, but is larger and has a black abdomen, with lateral 
whitish spots. The fungus, of a fuscous hue, is especially evident 
in the extended intervals of the segments of the abdomen, along the 
sides of the thorax, and at the neck. Though extending to and 
attaching the flies to the leaves, the specimens no not exhibit the 
zone of spores on the leaf, as commonly seen in those of infested 
house-flies. Microscopic examination exhibited a similar structure 
of the fungus to that of the Sporendonema or Empusa musce. It 
mainly consists of translucent cylindrical, straight or somewhat 
tortuous rods or tubes of yariable length with rounded ends, and 
containing homogeneous liquid with rows of oil-like globules. 
Mingled with the tubes are numerous oval, ovoid, and pyriform 
spore-like bodies, usually each with two oil-like globules. The 
spore-like bodies measure 0-028 to 0-036 millim. long by 0-016 
millim. thick. The longer tubes measure usually up to 0:16 millim. 
long by 0°012 millim. thick.—Proc, Acad. Nat. Sci. Philad., Dec. 
1883, p. 302. 
On the Occurrence of Colobus Kirkii. 
We have received the following communication from Sir J. Kirk 
regarding this monkey ; it is dated from Zanzibar, Feb. 16th :— 
‘In the Proe. Zool. Soc. Feb. 1868, p. 27, Dr. Gray described a 
new Colobus, and named it after me. That monkey then was rare, 
but still to be had in many of the wooded districts of this island. 
I am not aware that it has been found in Pemba Island or on the 
mainland; and now I discover that, if not extinct, it has become so 
rare as not to be procurable, even when I sent the hunters over the 
islaud. I have a report that it exists still in one spot which they 
could not reach. I think two specimens were sent to Germany some 
time ago; but it looks as if the animal will be lost. This is due to 
the destruction of forest and jungle over the island.” 
Polythalanua from Inland Salt Water in Hungary. 
By Dr. Even von Danay. 
The author has found, in a mass collected from a salt pool near 
Déva, in Transylvania, examples of Polythalamia, the shells of which 
show no traces of calcification, but consist of a yellowish chitinous 
substance, on the surface of which numerous little plates of quartz 
adhere. Probably the Polythalamia found near Déva are the repre- 
sentatives of a living continental species ; but the author leaves this 
to be settled by further investigation Math. naturwiss. Berichte 
aus Ungarn, Bd. i. p. 357. 
