508 D i e s i II g. 



SuhfaniiHa IL Eitpolycelidea. Ocelli mimorosi. Oesophao^us 

 cylindi'it'us. Aqiiaruni tliileium ineolae. 



XIII. POLYCELIS IIEMPRICH et EHBEAßERG. 



Fasciola et Flanaria Müller. — Hirudo Kirby. — Goniocarenae spec. Schtnardu. 

 Corpus plaiimn dilatatum oblongum, pede ventrali niillo. Caput 

 corpore eoiitiniium, iiec auriculatum, nee tentaculatum. Ocelli niime- 

 rosi marginales. Os ventrale infi'a medium corporis situm, oesophago 

 cylindrieo. Apertura genitalis unica retrorsum sita. Aquarum dulcium 

 Europae temperatae ineolae. 



i. Polycelis nigra HEMPRICH et EHRENBERG. — Dies. Syst. Helm. 

 I. 191 adde: 



Penis subglobosus antice uncinulorum coronula multipliei 0. Schmidt. 

 PJanaria nigra Thompson: in Ann. of nat. bist. XVIII. (1846), 388. 

 Polyeelis nigra Ehretiberg : Acaleph. d. roth. Meeres 67. — Stimpson: 



Prodr. I. 6. — 0. Schmidt : in Zeitsclir. f. wissensch. Zool. X. 26—33 



(et de organ. genital.). Tab. III. 4. IV. i, 2, 3. 



Habitaculo adde: In Hibernia (Thompson); in stagnis et 

 rivulis tarde fluetitibus prope Gratiam in Styria (0. Schmidt). 



2. Polyeelis brannea STIMPSON. 



Polyeelis nigra var. a. brunnea. — Diesiug : Syst. Helm. I. 192. 

 Polyeelis brunnea Stimpson: Prodr. 1. 6. 

 An hujus generis? 



3. Polyeelis Tiganensis EHRENBERG. 



Acaleph. des rothen Meeres 67. — Stimpson: Prodr. I. 6. 

 Polyeelis nigra var. /S. viganensis. — Diesing : Syst. Helm. I. 192. 

 Gonioearena viganensis Schmarda: Neue wirbell. Tb. I. i. 14. 

 Planaria viganensis 0. Schmidt: in Sitzungsb. der kais. Akad. XXXII. 

 (1858), 268. 



Habitaculo adde: In Thuringia (Schnitze); in rivulis sub- 



alpiriis in Styria (0. Schmidt). 



4. Polyeelis cornata 0. SCHMIDT. 



Corpus supra convexiüsculum retrorsum acutatum decolor vel 

 nigroscens. Caput antice rotundatum, lobis cephalicis tentaculifor- 

 mibus duobus. Ocelli 70 — 80 marginales paralleli et in margine an- 

 teriore seriati. Longit. — 7'". 



Notiliae anatomicac : Penis obovatus infra juncturam vasorum deferentium 

 excavatus, in parte sua basilari granula agglomerata eontinens. 

 Polyeelis cornuta 0. Schmidt: in Zeitsebr. f. wissensch. Zool. X. 25 — 33 

 (descr. et de syst, nerv., organis genital, et organo ignotae functio- 

 nis). Tab. HI. 1, 2. HI. 3. 



