81 



35. IiIOItHir]%CIlU8. Corpus subcylintlriciim, inermev. ar- 



matum. Os in tubulum inerraem protractile. 

 3G. CMEIIlACA]*fXltUli. Corpus subcylindricum antrorsum 



spinulis palmatis armatumj pene in vagina bipartita. Os bila- 



biatum. 

 3«. liECAlVOCEMIAIiUS. Corpus subcylindricum spinu- 



losum; pene in vagina bipartita. Caput discretum obtuse sub- 



triquetrum patellaeforme. Os trilabiafum. 

 3§* EUCAIHPTUS. Corpus capillare, extremitate caudali maris 



subtus papillosa spiraliter torta; pene in vagiua bipartita. 



Caput oblusum papillis lateralibus. Os orbiculare. 



39. TIlICII€»SOMUi?l. Corpus capillare utplurimum longum; 

 pene in vagina tubulosa ; apertura genilali feminea in poste- 

 riore corporis parte. Os orbiculare. 



40. F^IIiAIlIA. Corpus filiforme utplurimum longissimum; pene 

 in vagina tubulosa s. ligulaeformi; apertura genitali feminea 

 in anteriore corporis parte. Os orbiculare aat labiatum, inerme 

 aut armalum. 



41. OIVCHOCKRCA. Corpus filiforme, extremitate caudali 

 niaris snbtus excavata biloba uncinulis duobus armata. Os 

 orbiculare. 



43.? STKMOHES. Corpus subcylindricum , extremitate cau- 

 dali maris acuta hemicyclaj pene in vagina bipartita. Caput 

 truncatum collo constricto discretum. Os orbiculare. 



SECTIO II. ACROPHALLI. 



Penis in extremitate caudali e bursa protractilis. 



FAMILIA I. TRICHOTBACHELIDEA. Collum longissimum 

 capillare. Penis in vagina tubulosa. 



43. TBICHOCErHAIiUS. Corpus subcylindricum crassius- 

 culum. Collum longissimum capillare. Caput inerme. Bursa 

 maris armata, rarissime inermis; pene in vagina tubulosa, 

 cumque ea retraclili. 



44. SCIiKROTHICHU]». Cbrpus subcylindricura crassum. 

 Collum longissimum capillare. Caput disciforme margine 

 uncinato. Mas . . . 



4 5. OIVCOPHORA. Corpus subcylindricum crassum antice 

 gibbosum. Collum longissimum capillare. Caput . . . Mas . . . 



FAMILIA II. STRONGYLIDEA. Collum subnullum. Penis 

 haud vaginatus v. vagina bipartita inclusus. 



4e. STErHAHfURUS. Corpus subcylindricum. Caput corpore 

 continuum. Os orbiculare limbo corneo annulari, dentato. 

 Diesing, Helraintli. II. 6 



