Revision der Turbellarien. .6 1 5 



-J- c e 1 1 i (1 II o. 



X. TURBELLA HEMPRICH et EHRENBERG. Ch'ar. iimplifieato. 



Planaria Fabricms. — Derostoma Duges partim. — Mesostomi spec. Duges. — 



Maerostoma Oersted. - Strongylostoraa Oersted. — Orthostomum 0. Schmidt 



nee Hempr. et Ehreiib. — Schizostomuni Schmidt. — Mesopharyn^is spec. 



Schmarda. — Chonostomum Schmarda. — Catesthia Leidy. 



Corpus teretiuseulum v. depressum. Caput corpore continuum. 



Os ventrale superum, rimaeforme, longitudinale vel transversiim, vel 



subellipticum, v. in medio fere corporis situm circulare, v. posticnm 



subterminale, oesophago cylindrico, amphoraeformi vel infundibuli- 



formi, protractili v.haiid protractili. Ocelli duo antici. Otolithus nuilus. 



Androgyiin. Anus nuilus. Aquarum dulcium, rarius maris ineolae. 



Conspectns dispositiouis speciernm. 



* Os superum, rimaeforme, subellipticum v. circulare sp. i— 2.ö. 

 ** Os in medio vel paulum supra vel retro corporis medium situm sp. 



26-46. 

 *** Os subterminale posticum sp. 47. 

 Species inquirendae: 48 — 57. 



* Os superum, rimaeforme, subellipticum v. circulare. 



Turbella Hempr. et Ehrenb. — Derostoma Jhigea partim. — IVIacrostoma 

 Oersted. — - Strongylostomi et Vorticis spec. Schmarda. 



1. Tnrbella platyura HEMPRICH et EHREN BERG. — Dies. Syst. 

 Helm. I. 223. 



Hab itaculum. Monspessulani (Üuges). — Berolini (Ehren- 

 berg). 



• 2. TarbeHa appendicolata DIESING: Syst. Helm. 1. 224 adde. 



Macrostomum Hystrix Oersl. - Schnitze : Beitr. Turbeil. I. 36, 73 et 77. 

 Tab. V. 3 (animal.). Tab. I. 1d (anatom.). 

 Habitaculo adde: Prope littus in profunditate aliquot pedum 

 in mare baltico ab initio aestatis usque ad autumnum organis geni- 

 talibus evolutis (Schnitze). 



Sed. cl. Schnitze cum specie subsequente identica. 



3. TarbeHa Hystrix diesinG: Syst. Helm. I. 224 adde. 



Macrostomum Hystrix Oemted. — Schnitze: Beitr. Turbellar. I. c. — 

 0. Schmidt: in Sitzungsb. d. kais. Akad. XXV. (1857) 87 et in 

 Denkschr. d. kais. Akad. XV. 36. 

 Habitaculo adde: Prope Cracoviam (Schmidt). 



