TR1CH0CEPHALUS DISPAR. 323 



vagina leevi cylindricd instructus. Extremitas caudalis organo 

 copulatorio auxiliario, spinis armato, subcylindrico ornata, cujus 

 longiludo 0-451 mill. = 0-198'" Par. = 0-203'" V., latitudo in 

 parte libera 0-090 mill. = 0-039'" Par. = 0-040"' V., in parte op- 

 posita fere 0049 mill. = 0-021 6'" P. = 0-022"' V. est. Cloacce 

 communis musculosce in maribus longiludo circiter 4 mill. = 2'" P. ; 

 latitudo 0-261 mill. = 0-116'" P. = 0119"' V. ; latitudo foraminis 

 cloaca ipsius = (the lumen of the canal formed by the cloaca) 

 0-130 mill. = 0-058'" P. = 0-059"' V. Spermatozoidia globuli- 

 formia ad 50 mill, longa. 



Femina .■ in trunco rectior, minus curvata, mare aliquid latibr, 

 minusque elastica et fexibilis, obovulorum in utero et ovariis 

 copiam, eaque de causa colore magis fusca ; extremitate caudali 

 obtuso acuminata. 



Ovula fusca cum generis speciminibus ; 0*054 mill. = 0-022'" 

 P. et V. longa; media in parte 0025 mill. — 00112"' P. et V., 

 in apicibus 0-01 mill. = 0-0048'" P. et V. lata. Embryonum migra- 

 tions adhuc ignotce. Verisimillimum est, Trichinas, quas dicerunt 

 spirales, Trichocephali disparts embryones esse. 



Description of Trichina spiralis .- corpus plerumque in spiras 2 re- 

 tor turn, ad anum versus crassius et obrotundatum, ad caput attenu- 

 alum ; tubus intestinalis, uti apud Trichoc. disparem, ab initio 

 multifarie retortus, ventriculus pyriformis cum lateralibus 2 appen- 

 dicis alosis (lobulis aut glandulis aut nervis), intestinum rectum 

 post coarctaiionem quandam iterum incrassatum, recldque via ad 

 anum in extremitate posteriore edque crassiore apertam profectum. 

 Funiculus quidam secundus in utraque extremitate ccecus et semi- 

 lunaris genitalium primordia format (?) 



Longit. vesicularum 0*2 — 0-5 — 0-7'" = 0'4 — 1-0 — 1*5 mill.; 

 latitudo fere mediam partem exhibet. 



Longitudo vermiculi ex cystide liberati et evoluti secundum, 

 Luschka \ — l!" ; secundum meas mensuras 1-115 mill. = 0'50'" 

 P. = 0-518'" V. ; latitudo in capitis apice 0-008 mill. = 0-0036'" 

 p. == 00037'" V. ; latitudo extremitatis posterioris seu ani 0-024 

 mill = 00108'" P. = 0-111"' V. 



The Trichocephalus dispar was first discovered by Morgagni in 

 the csecum and vermiform appendage of typhous patients, and is 

 mentioned in his ' Epistohe Anatomical Subsequently, in the 

 year 1761, it was found by a student of Gottingen, who regarded 

 it as a young Ascaris lumbricoides, or a very large Oxyuris ver- 

 micularis, although Roedercr and Wagler immediately recognised 



