22 



Kiichenmeister, however, denies the communication, 

 and states that they have " no perceptible connection 

 with the vesicle of the penis, or with the testis." 



These latter (PI. II. fig. 4, |3) are composed of 

 whitish granulations, 0-030 to 0-080 in size (Kiichen- 

 meister), and are situated at the uppermost portion of 

 the genital apparatus. They contain, according to 

 Eschricht, fine, spiral filaments (spermatozooid fila- 

 ments ; Kiichenmeister). 



Below the male orifice, and at the lower part of 

 the articulations, is the female opening, consisting 

 of the vulva (PI. II. fig. 4, ?'), which leads into a tor- 

 tuous canal, the oviduct (PI. II, fig. 4, d) ; while on 

 either side are several horns or pockets, which Kiich- 

 enmeister designates as the uterus, but which appear 

 to me more likely to be the ovaries (PI. II. fig. 4, 

 > , *, *) 



A little below the female opening, and on' either 

 side of it, are two other horns, united together by 

 a canal ; this M. Moquin-Tandon considers as the 

 uterus (PI. II. fig. 4, rj, *?). I am inclined also to 

 regard these as ovaries, and to deny the Bothrio- 

 cephalus a uterus, for the same reason that I did the 

 Tsenia. Kiichenmeister, besides, describes a pigment 

 capsule (Eschricht's coil), which secretes the brown 

 coloring matter, and perhaps the shells of the ova ; 

 it is 5 or 6 in length, enlarged like a sac in the mid- 

 dle, and opening into the uterus directly at its com- 

 mencement. 



As might be expected, these entozoa possess no 

 visual or respiratory organs ; at least, none have ever 

 been observed. 



