520 Diesing. 



Fainilia VII. Oaleoceplialidea. Dies. Chaiacter 

 generis unici simul familiae. 



XIX. GALEOCEPHALA STIMPSON. 



Fasciolae spec. Müller. — Planariae spec. Gmelin. — Dendrocoeli spec. Girard. 



Corpus ohlongum. Caput corpore continuum suhbiaiiriculatum, 

 tentaculis genuinis duobus. OcelU diio. Os ventrale retro medium 



corporis sitiim, oesophago Apertura genitalis unica retro os. 



Aquarum dulcium incolae. 



1. Galeocephala superba STIMPSON. 

 Corpus roseuni vel laeteum. Longit. . . . 



Dendrocoelum superbum Girard: in Proceed. Bost. Soc. Nat. Hist. III. 



(1850), 265. — Nordam. Monatsb. II. 2. 

 Galeocepbala superba Siimpson: Prodr. I. S. 



Habitaculum. In rivuiis, piscinis et paliidihus; in America 



septentrionali frequens (Girard). 



2. Galeocephala! tentacalata STBIPSON. 



Planaria tentaculata Gmelin. — Diesing : Syst. Helm. I. 204. 

 Galeocepbala? tentaculata Sfimpson: Prodr. I. S. 



Habitaculum. In paludibus Daniae (Müller). 

 Familia Vlir Procerodea» Dies. Character generis 

 unici sinuil faniili;ie. 



XX. PROCERODES GIRARD. 



Planariae spec. Auetor. 



Corpus sublineare v. depressuni. Cajrut a corpore subdiscretum 

 antice truncatum, exauriculatum, tentaculis genuinis duobus frontali- 

 bus. Ocelll duo. Os. . . oesophago. . . Apertura genitalis. . . Mari- 



colae. 



Tractus eibarii rami indivisi. — Num genus hoc tentaculis revera genuinis vel 

 solummodo pseudotentaculis instructum sit nee ne^ e eharacteribus a cl. 

 Stimpsou enumeratis non satis patet. 



1. Procerodcs Wheatlandii GIRARD. 



Corpus lineare breve, brunnescens. Longit. ad 2'". 



Procerodes Wheatlandii Girard: in Proceed. Bost. Soc. nat. hist. III. (iSoO), 

 251. — Nordam. Monatsb. 11.4, — Stimpsou: in Smithson.Contrib. VI. 27. 

 — Idem: Prodr. I. G. 



