STRUCTURE OF SEVERAL FORMS OF LAND PLANARIANS. 287 



Catalogue of the species of Land Planarians at present known. 



Group. — MoNOGONOPORA, Stimpson. 

 Family. — Leimacopsid^, Diesing. 



Genus Leimacopsis. — Diesing, Revision der Tarbellarien, 

 Abtheilung Dendrocoelen, Sitzbt. Akad. Wiss., 

 Wien, 1861, p. 488. 



Leimacopsis terricola. — Diesing, 1. c. 



Prostheraceus terricola. — Schmarda, 'Neue Wirbellose Thiere/ 

 Th. 1, 1—30, Tab. VI, fig. 69. 



With a pair of true frontal tentacles beset with numerous 

 eyes. Occurs high up in the Andes at the pass of Quindiu, 

 above the region of mountain palms. 



Family Geoplanida. 



Genus Polycladus. — Blanchard, Historia Pisica y Politica 

 de Chile por Claudio Gay, Fauna Tomo tercero.' 

 Paris, 1854, p. 6. 



1. Polycladus Gayi. — Chile. Blanchard, I.e. PL Annilados, 

 No. 3. 



The body is much flattened. Blanchard gives some details 

 of anatomy, but he mistook the head for the tail of the animal. 

 The generative organs are situate further from the mouth than 

 in Geoplana N. Zealandise. It is possible that this genus of the 

 Western side of the Andes may prove a natural aud distinct one. 



2. Polycladus Andicola. — Schmarda, ' Neue Wirbellose 

 Thiere/ 1, 1—15, Tab. II, 31 and 31 a. 



Schmarda refers this Andean species to the genus. The body 

 is flat and oblong. He is evidently in error in speaking of two 

 generative apertures as present in front of the middle of the body.' 



Genus Geoplana (Stimpson and Max Schultze). Stimpson, 

 Prodromus descriptionis animalium evertebratorum quse in ex- 

 peditione ad Oceanum Pacificum Septentrionalem, &c. Pt. 1, 

 Turbellaria Dendroccela, Proc. Acad. Philad., 1857, p. 19. 



Max Schultze, Beitrage zur Kenntiss der Land-Planarien 

 nach Mittheilungen des Dr. Fritz Miiller, in Brasilien und 

 nach eigenen Untersuchungen, Halle Abdhn., 1856, p. 20. 



1. Geoplana vaginuloides. — Rio Janeiro. Darwin, * Ann. and 

 Mag. Nat. Hist., vol. xiv, 1844, p. 241 = G, elegans, Brazil, 

 Frit^ Miiller and|Max Schultze, I.e. 



