Zoologischer Anzeiger 
herausgegeben 
von Prof. Kugen Korschelt in Marburg. 
Zugleich 
Organ der Deutschen Zoologischen Gesellschaft, 
Verlag von Wilhelm Engelmann in Leipzig und Berlin. 
XLY. Band. 22. Dezember 1914. Nr. 5. 
Inhalt: 
I. Wissenschaftliche Mitteilungen. 4. Verhoeff, Zur Kenntnis einiger alpiner Chilo- 
1. Barker and Parsons, A new species of Mo- gnathen. (Mit 15 Figuren.) S. 219. 
nostome from the Painted Terrapin, Chryse- 
mys marginata. S. 193. | II. Mitteilungen aus Museen, Instituten usw. 
2. Fuchs, Tylenchus dispar curvidentis m. und | Linnean Society of New South Wales 
Tylenchus dispar cryphali m. (Mit 14 Fi- S. 238. 
guren.) S. 195. | 
3. Hase, Uber einen Flußkrebs mit abnormalem | IIL. Personal-Notizen. 
Genitalapparat. (Mit 18 Figuren) S. 207. Nachruf. S. 239 u. 240. 
I. Wissenschaftliche Mitteilungen. 
1. A new species of Monostome from the Painted Terrapin, Chrysemys 
marginata. 
By Barker and Parsons. 
eingeg. 23. Juli 1914. 
In a recent study of the parasites of fresh water turtles we have 
found a new species of trematode, a condensed preliminary description 
of which is as follows. 
Aorchis extensus gen. et sp. n. 
Specific characters: Body thick, somewhat flattened dorso- 
ventrally; sides almost parallel; anterior end pointed, posterior end 
rounded; cuticula smooth, spines absent. Length 4,90mm. to 12,24mm., 
width 1,57 mm. to 2,65 mm. 
One sucker present at anterior end, small terminal, globular, mus- 
culature poorly developed. 
Pharynx globular, composed of two muscular bean shaped halves. 
Hsophagus short, wide and slightly muscular. Two simple intestinal 
ceca, one on either side of the body, extend to the posterior end of the 
worm where they end blindly. Ovary, large, globular in anterior end 
Zoolog. Anzeiger. Bd. XLV. 13 
