14 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 73 



OPINION 95 



Two Generic Names of Protozoa Placed in the Official 

 List of Generic Names 



Summary. — The following names are hereby placed in the Official List of 

 Generic Names — Protozoa: E)idamocba, Trypanosoma. 



Statement of case. — i. Professor R. W. Hegner, of the Johns 

 Hopkins School of Hygiene and Public Health, has recommended to 

 the Helminthological Society of Washington, that the said Society 

 bring to the attention of the International Commission on Zoologi- 

 cal Nomenclature the following five generic names of important para- 

 sitic Protozoa, with a view to inserting them in the Official Pist of 

 Generic Names. The Society has voted to support the names. 



2. The Secretary of the Commission has studied all five of these 

 cases in detail, and believes that they are nomenclatorially available 

 and valid under the International Rules, and he recommends their 

 adoption by the Commission. 



3. The names are as follows : 



Endamocba Leidy, i87ga, 300, mt. blattac Buetschli, 1878a, 273, t. h. Blafia 



orientalis. 

 Giardia Kunstler, 1882, CrAS, v. 95, 349, mt. (J. ayilis Kunstler, 1882, 349, in 



intestine of tadpole of Rana. 

 Trichomonas (Donne, 1837) Ehrenb., 1838a, 331 (emendation of Tricomo- 



nas), m,t. vaginalis Donne, 1837. 

 Trypanosoma Gruby, 1843a, 1134, mt. T. sanguinis Gruby, 1843a, Nov. 13,=: 



Amoeba- rotatoria Mayer, 1843, in blood of Rana. 

 Balantidium Clap. & Laclim., 1858b, 247, mt. Bursaria cntozoon Ehrenb., 1838b, 



327- 



4. Commissioner Apstein has proposed three of the foregoing 

 names in his paper of 1915a, nomina conservanda, p. 122, as follows: 



Balantidium Clap. & Lachm., 1858, type coli Malmst., 1857. 

 Trichomonas Donne, 1837, type vaginalis Donne, 1837. 

 Trypanosoma Gruby, 1843, type sanguinis Gruby, 1843. 



5. Commissioner Apstein and the Secretary agree in all details in 

 regard to TricJwuionas and Trypanosojjia. Apstein accepts coli as 

 the type of Balanfidiiuii, but Bahuitidiuni 1858 was monotypic (cnto- 

 aoon), and C. & L. in the same paper classified coli as a Plagiotoiiia; 

 accordingly under the Code, coli is excluded as type of Balantidium. 

 Commissioner Apstein does not mention Jlndauwcba or Giardia. 



