ART. 24 PEOLIFERATING LARVAL TAPEWORM SCHWARTZ 3 



quently referred to as Cysticercus race?nosus, this form having been 

 found in the human brain several times. Braun (1897) cites two 

 additional cysticerci that exhibit the phenomenon of larval multipli- 

 cation by budding, namety, Cysticercus hotryoides and Cysticercus 

 longicoUis. With regard to the former which has been foimd only 

 once by Boettcher in 1802 in the back muscles of a rabbit, there exists 

 a divergence of opinion among helminthologists concerning its zoo- 

 logical status, certain writers taking the view that it is a coenurus. 

 Braun (1897) is convinced, however, that it is a cysticercus allied 

 to Cysticercus longicoUis^ the intermediate stage of Taenia crassiceps 

 of the fox. Hailliet (1895) regards Cysticercus hotryoides as well 

 as Cysticercus racemosus as a sj^nonym of Cysticercus ceJlulosae. 

 According to Braun (1897) the buds given off from the parent 

 bladder of Cysticercus longicoUis become detached, whereas in 

 Cysticercus hotryoides they remain in permanent union until they 

 reach the definite host, which when its life history becomes known 

 will probably be found to be true of the cestode discussed in this 

 paper [Taenia twitcKelli) ^ so far as can be judged from appearances 

 which indicate a permanent union of the cysticerci in the branch- 

 ing colony. 



REFERENCES TO LITERATURE CITED. 



Boettcher, Arthur. 



lS62a. — Mittheilung iiber einen bislier noch unbekannten Blasenvairm. 

 12 pp., 1 pi., Dorpat. 



Braun, Max. 



1897a. — Vermes, Bronn's Klass. u. Ordnung. d. Thier-Reichs. Leipz., vol. 4, 

 Abt. 11), Lief. 53-55, pp. 1455-1534, figs. 68 [sic.]-85, pis. 57-58. 

 Railliet, Axcide. 



1895a. — Traite de zoologle m^dicale et agricole. §d. 2. [fasc. 2], xv+737- 

 1303 pp., figs. 495-892. Paris. 



