NOTES ON PARASITES 95 



tae, olim f orsan sub Spheerostomatis .... nomine generi peculiari 

 reserventur. » 



No species were directly mentioned in connection with the genus, 

 but from the description it is clear thatRudolphi referred to such 

 forms as Distoma globiporum, D. transversale, D. atomon, etc. ; we 

 designate Distoma globiporum (= Fasciola globipora = F. bramas) as 

 type, since the similarity in the meaning of tlie generic and spécifie 

 names [Sphserostoma and globiporum) shows Rudolphi's own idea as 

 to the typical form. 



Thecosoma see Schistosoma. 



Urogonimus Monticelli, 1888. — Type. Fasciola macrostomaRuôoX- 

 phi, 1803. 



(1888), Urogonimus Monticelli, Saggio di una morfologia dei 

 Trematodi. Napoli. Type, Fasciola macrostoma Rudolplii, 1803. 



{183^) , LeucochloridiumCsirus,Amtl. Bericlit Versamml. deutsch. 

 Naturf. und AerzteinBreslau, p. 36. Only and hence type species, 

 L. paradoxum Carus. (Larval form not entitled to lex prioritatis, 

 see Règles Nomencl. Congrès Internat. ZooL, art. 48 b. excep.). 



In view of the exception regarding larval Cestoda, Trematoda, etc., 

 made by the International Code, in accordance with which the 

 names of thèse forms are not entitled to the Law of Priority, we 

 refrain from reverting to Leucochloridium as generic name. 



Urogonimus has been adopted by several authors, while other 

 writers reserve judgment upon it. Personally we are inclined to 

 adopt it. 



Analytical key to the subfamilles, gênera and subyenera thus far 

 proposed in the ïremalode family Fasciolidae . 



(Larval stages, Cercaria, Redia, etc., omitted). 



1 . Monoecious (hermaphrodites).— Type : Fasciola. Fasciolinae. 

 Dioecious (sexes separated); génital pore between oral sucker 



and acetabulum. — Type: Schistosoma. Schistosominae, 14. 



Subfamily Fasciolinae. 



2. Mature Fasciolinae, oi- forms in which the génital organs are 



developed to an exteut which perinits of a détermination 

 of the genus 12 a. 



