498 KEPOKT ON ZOOLOGY, MDCCCXLIV. 



was bulbous, after doing which they moved the free portion 

 about in a serpentine manner. Of their internal structure 

 nothing could be made out. Similar active corpuscles pre- 

 sented themselves, also in Erssea pyramidalis, trancata, and 

 elongata. Might not these creatures perhaps have been 

 Spermatozoa ? 



PSEUDOHELMINTHES. 



The capilliform Spermatozoidea developed in the lower 

 Crustacea and Cirripedia have, most incomprehensibly, been 

 described by Goodsir as Filarise. (Froriep's ueue Notizen, 

 Nr. 627, 1844, p. 163.) Berres (Oesterreich. mediz. Jahr- 

 biicher, 1843, p. 141) has gone still further, and has described 

 all the Spermatozoidea generally as animals. He thinks 

 that in the human Spermatozoidea he has seen in the inte- 

 rior of the body a granular material grouped in various 

 ways, the granules of which, in many individuals, exhibit a 

 sort of fluctuation, such as maybe observed during the peri- 

 and anti-peristaltic motion of the digestive organs in the 

 Infusoria. Berres believed that in some, he had remarked, 

 in the axis of the body, a cylinder or tube filled with a 

 coloured matter, and which was continued as far as the 

 caudal extremity. In most of the Spermatozoidea, however, 

 he was struck with a clear, round vesicle, in the interior 

 of the body near the tail, probably a stomach or ovary (?), 

 whence he comes to the conclusion that the Spermatozoidea 

 of Man are animals having a complex organization. The 

 same observer also saw the bodies of these Spermatozoidea 

 assume various figures by means of constrictions. 



The new Entozoon described by Mayer (Oesterreich. 

 mediz. Jahrbuch. 1843, p. 141) under the name of Acan- 

 thosoma chrysalis, which was met with on the outer surface 

 of the stomach, and between the layers of the ornentuin of 

 Eana esculenta, must be referred by the Reporter to the 

 Pseudohclminthes. The vermiculi to which this name has 

 been given were of a brownish colour, one and a half line 



