AN AÏTEMPÏ TO REVISE THE FAMILY (( LIXGUATULIDAE )) 



crenatum), lateribus dorsalibus convexiusculis. Caput truncatum. 

 (Os orbiculare inter costas utrimque quatuor oblique verticales, 

 bothria arcuatim disposita limitantes, medio situm). Long, femi- 

 nae : 22,5 mm. ; latit. 6,7 mm. ». — 

 Leuckaht. 



Habitat. — In the throat of Caiman , 

 Crocodilus sclerops Wagler {Caiman latiros- 

 tris and Caiman sclerops\. 



4. — Linguatula taenioides Lamarck. ^S 



Synonyms. — A. — Adult Forms. 

 Tœnia lanccolata Ghabert. 

 Ver rhinaire Ghabert. 

 Tœnia rhinaria Pilger. 

 Prionoderma rhinarium Rudolphi. 

 Polystoma tsenioides Rudolphi. 

 Pentastoma tsenioides Rudolphi. 

 Linguatula tsenioides Lamarck. 

 Prionoderma lanceolata Guvier. 

 Linguatula tsenioides Guvier. 

 Linguatula rhinaria Moniez. 

 Linguatula lanceolata Riainville. 



B. — Larval Forms. 



Pentastoma denticulatum Rudolphi. 

 Pentastoma serratum Frôhlich. 

 Pentastoma emarginatum Rudolphi. 

 Linguatula ferox Zenker. 

 Polystoma serratum Zeder. 

 Tœnia caprina Gmelin. 

 Halyseris caprina Zeder. 

 Echinorhynchus caprae Braun. 

 Polystoma denticulatum Rudolphi. 

 Linguatula denticulata Lamarck. 

 Tetragulus caviae Bosc. 

 Pentastoma fera Greplin. 

 Tsenia caprsea Abildgaard. 



Fig. 3. — Linguatula 

 siibtriquetra Diesing 

 X 3, 5. After Diesing. 



Fig. 4. — Linguatula 

 tsenioides Lamarck . 

 Larval stage (£. denti- 

 calata) magnifiée!. 



