﻿PARAGONIMIASIS IN THE PHILI1T1XES. 



31 



Table No. 1. — Trematodes infecting man, showing the zoological position of flukes. 



(Order.) 



(Family.) 



(Genus, or 

 collective group.) 



Fasciolidae 



Malacoeotylea__ 



(Species.) 



/Monostomidae ._ Monostomulum „_ M. Icntis Gescheidt. 



Agamodistomurn __ A. opMhalmoMum Dieslng 



fO.felineus Rivolta. 

 Opisthorchis lo. novcrca Braun. 



[0. sinensis Cobbold. 



F. buskii Lankester. 



F. rathouisi Poirier. 



Heterophyes H. heterophyes Siebold. 



Paragonimus P. westermanii Kerbert. 



(F. hepatica Linn. 



{F. gigantica Cobbold. 



.Dicrocoelium 1). lanceolotum Rudolphi. 



Gastrodiscus G. hominis L and McC. 



(S. haematobium Bilharz. 



\S. japimicum Katsurada. 



Fasciolopsis . 



Fasciola . 



Paramphistomidae.. 

 \Schisto.somidae Schistosoma _ 



P. westermanii Kekb. — P. westermanii belongs to the family Fas- 

 ciolidae and is the type species of the genus Paragonimus. It was dis- 

 covered by Kerbert in 1878. 



(a) Synonyms. — The synonyms for this parasite as given by Stiles 

 are in the foot note. 1 



(b) General description and specific diagnosis of the parasites. — Size: 

 There are considerable variations in the measurements of the this worm 

 as they are given b} r various writers. These are shown in Table No. 2. 

 The personal equation must be considerable in trying to measure the 

 living organism but, even after eliminating this and as much as possible 

 all other sources of error, the differences in measurements are very large 

 and they are often noticeable in mature specimens from different locations 

 in the same host. The limits of variation are probably included in the 

 following measurements : 0.008-0.020 X 0.004-0.009 X 0. 002-0. 006. On 

 one dccassion several parasites found in an abscess in the abdominal cavity 



1 (a) Synonyms. — Distoma westermanii Kerbert, 1878; Distoma ringeri Cob- 

 bold, 1880; Gregarina pulmonum Baelz, 1880; Gregarina fusca Baelz, 1S80: 

 Distomum westermani Kerbert, 1881; Distoma pulmonis Kiyona, Suga, and 

 Yamagate (1881); Distomum pulmonis Kiyona, Suga, and Yamagate (1881); 

 Distoma pulmonale Baelz, 1883; Distoma pulmonar La C'liniea de Malaga, 1883; 

 Distoma putmonum (Baelz) Tomono Hidekata. 1883; "Distoma. hcpatician Linn." 

 of Miura, 1889; Distomum ringeri (Cobbold, 1880) von Linstow, 1889; Disto- 

 mum westermanni Leuckart, 1889; Distomum pulmonale (Baelz) Leuekart, 1889; 

 Distomum cerebrale Yamagiwa, 1890; Distoma ringers Rev. Sci., 1890; "Meso- 

 gonimus loestermanni (Kerbert, 1878)" Railliet, 1890; Mesogonimus pulmonalis 

 (Baelz, 1883) Railliet, 1890; Mesogonimus ringeri (Cobbold. 1880) Railliet, 

 1890; Distoma westermanm (Kerbert, 1881) Weber, 1891; "Distoma, westermanni 

 (Leuckart) Blaneliard, 1891; "Mesogonimus pulmonale (Baelz, 1878)" Stossieh, 

 1892; "Distoma {Mesogonimus) westermani Kerbert, 1878," of Stiles, 1894: 

 Distomum sp. of Kellicott, 1894; Distomi ringeri (Cobbold, 1880) Simon, 1897; 

 Paragonimus westermanii (Kerbert, 1878) Stiles & Hassall, 1900. 



