TREMATODA 17 



withstanding this successful treatment the haamatemesis returned 

 in about a month, when, finally, three more flukes were vomited 

 and the bleeding ceased. Had not the parasites been sub- 

 mitted for identification to a competent observer (Prof. 

 Martins, of Montpellier), some doubt might have been enter- 

 tained as to the genuineness of this remarkable case. In refer- 

 ence to Dr Prunac's comments on the facts of fluke-parasitism 

 in man, I will only remark that Dr Kerr's Chinese cases, to which 

 he refers, were probably due to Distoma crassum and not to D. 

 hepaticum. The Chinese flukes will be noticed below. 



BIBLIOGEAPHY (No. 3). Full references to details of the cases 

 fyy Partridge, Fox, and Harris are given in Appendix B. to 

 Lankester's Edit, of Kuchenmeister 3 s Manual. See also the 

 works of Davaine and Leuckart (I. c. Bibl. No. 1). Carter, 

 H. V. f " Note on Distoma hepaticum " (from a patient under the 

 care of Mr Pandoorung), f Bombay Med. and Physical Soc. 

 Trans/ (Appendix), 1862. Chabert, J. X. (quoted above). 

 Murchison, C., ( Clinical Lectures on Diseases of the Liver, (2nd 

 Edit., Appendix), London, 1877. Prunac, De la Douve ou 

 Distome hepatique chez Fhomme ; in ' Gazette des Hopitaux ' 

 for December, 1878 (p. 1147). For further references in this 

 work, see Bibliog. No. 49. 



Distoma lanceolatiim, Mehlis. At least three instances of 

 the occurrence of this small fluke in the human body have been 

 observed. The authority for these cases rests, severally, with 

 Bucholz, who found them in the gall bladder in considerable 

 numbers at Weimar; with Chabert, who expelled a large 

 number from the intestines of a girl in France ; and with 

 Kiichner, who obtained forty-seven specimens from a girl in 

 Bohemia. Probably many similar instances have been over- 

 looked, and Kiichenmeister hints that Duval's parasites (above 

 mentioned) may have been this species. Although this worm 

 will again be incidentally noticed in connection with bovine 

 parasites (and its ciliated larvae will also be referred to when 

 discussing the characters of the embryo of Bilharzia), I here 

 subjoin a diagnosis of the characters of the adult parasite. 

 The lancet-shaped liver fluke is a small flat helminth, measur- 

 ing rather more than the third of an inch in length, and about 

 one line and a half in breadth, being also especially charac- 

 terised by its lanceolate form ; the widest part of the body 

 corresponds with a transverse line drawn across the spot 

 where the vitellaria terminate below, and from this point, on 



2 



