532 Diesing. 



ocelli marginales frontales pauci minuti. Os in medio fere corporis. 

 Longit. IV:.", latit. V. 



Paehyplnna lactea Stimpson-. Prodr. I. 4 et 10. 



Hab ita culiim. Sublittoralis in locis lapillosis et algosis sub 

 lapidibus magnis ad oras insulae Oiisima (Stimpson). 



c) Ocellorum acervi tres; ocelli marginales nulli. 



27. leptoplana pellucida GRUBE. — Dies. Syst. Helm. I. 196. 

 Habitaculum. Panormi (Grube). 



d) Ocellorum acervi quatuor; ocelli primarii et secundarii (Stimps.); 



ocelli marginales nulli. 



28. leptopkna hyalina HEMPRICH et EHRENBERG. — Dies, Syst. 

 Helm. I. 197 adde: 



Stimpson: Prodr. I. 3. 

 Habitaculum. Intei* Corallia ad Tor in mare rubro (Hem- 

 p r i c h et E h r e n b e r g). 



29. leptoplana atomata OERSTED. — Dies. Syst. Helm. I. 197 adde: 

 Stimpson: Prodr. I. 3. — Leuckart: in Troschel's Arch. 1839, II. 183. 

 Planaria maculata Dalyell: Powers of the Creator II. 105, 106. Tab. XIV. 



27—35. 

 Habitaculum. In sinu Droebachiensi (Müller); — sinu 

 Codano ad algas florideas (Oersted); Helgolandiae (Frey et 

 Leuckart) ad littus Britanniae (Fleming); Scotiae (Dalyell). 

 — Neapoli? (Delle Cbiaje?) 



30. Leptoplana tremellaris OERSTED. — Dies. Syst. Helm. I. 

 197. adde: 



Stimpson: Prodr. I. 3. 



Planaria? tremellaris Ehrenberg: Aealeph. d. roth. Meeres 67. 

 Habitaculum. In sinu Christianensi, Augusto (Müller); — 

 portu Hafniensi, Decembri (Müller et Oersted); in Gallia (Du- 

 ges); Panormi (Grube); in Britannia (Thompson). 



31. Leptoplana nigropunctata OERSTED. — Dies.Sysi. Helm. i. 198. 

 Habitaculum. In siiiu Codano ad Kullen (Oersted). 



32. Leptoplana laeiigata DIESLYG. — Syst. Helm. I. 198. adde: 

 Stimpson: Prodr. I. 3. — 0. Schmidt: in Zeitschr. f. wissensch. Zool. 



XI. (18G0), 10 et 31. Tab. I. 3, 4, 5. 

 Polycelis laevigata Quatref. Beneden: Faune litt, de Belgique (1860), 

 42. Tab. VII. 10. — Grube: Ausflug nachTriest u. dem Quarnero 

 1861. 23 et 130. 



