OF THE HUMAN BODY. 43 



particular diversity between the latter and the hu- 

 man vesicular worm. 



Block only has been capable of distinguishing 

 them accurately. (141) 



THIRD GENUS. 



THE TRICOCEPHALUS. 



§ XXIX. Dr. Wagler was the first writer who 

 described this worm ;(1 43) it was found by pro- 

 fessor Roederer and himself in the intestinum coe- 

 cum of some French soldiers, who in the year i7'i0, 

 were attacked at Grottingen with a contagious epi- 

 demic. The celebrated Blnmenhach found it sev- 

 eral times afterward in the dead bodies of some 

 miserable and half starved subjects. '143} 



Among us it may b3 said to be very rare, since 

 so far as my information extends, no practitioner 

 has' had occasion to notice it.(144) JVagner sliuI 

 Block inform us that they have uniformly seen it 

 in the coecum : others have seen it in the course of 

 the large intestines, and Werner'^i-l^) says he has 

 found it in the lower portion of the ilium. 



§ XXX. We find the tricocephalus described 

 by various authors, under the names of Tricii- 

 r?s,(146) tlscaris tricuiray{i'i7) of Taenia spi- 

 WZ/e,(146) and of Fuseragnelo codi s<'fo/rt,(149) or 

 worm with a tail. The name of tricocephalus Is 

 the most appropriate. (IjO) 



§ XXXI. Several naturalists, among whom 

 we may count Linnaeus, Leske and Werner, have 

 improperly classed it with the genus of the asca- 



