no. 1844. CESTODE FROM AFRICAN BUSTARD— RANSOM. 647 



Rostellar hooks about 100 in number, 22 to 30 p long; strobila 6 to 7 cm. long with a 

 maximum breadth of 1.2 mm; genital cloaca very large, spherical, its diam- 

 eter equal to about one-third the length of the segment; testicles apparently 

 15 to 20 in number; eggs with three thin shells; recorded as parasitic in 

 Tetrax tetrax Idiogenes grandiporus 



8. Testicles 10 to 12 in number; yolk gland directly behind the middle of the ovary; 



recorded as parasitic in Milvus milvus, Milvus lorschun, and Milvus 



melanotic Idiogenes fiagellum. 



Testicles 7 to 9 in number; yolk gland behind the ovary but displaced toward the 

 pore side of the segment; recorded as parasitic in Cariama cristata. 



Idiogenes horridus. 

 Chapmania. 



9. Rostellar hooks about 8 /{ long; genital pores unilateral; cirrus pouch 0.5 mm. or 



more in length, supplied with a retractor muscle; testicles about 80 in num- 

 ber; eggs with two thin shells; recorded as parasitic in Rhea americana. 



Chapmania tauricollis. 

 Rostellar hooks 10 to 15 p long; each sucker bears two conical processes, one on 

 either side of the opening; genital pores irregularly alternating; cirrus 

 pouch 240 to 280 p long; testicles 200 or more in number; recorded as para- 

 sitic in Tetrax tetrax Chapmania tapila. 



REFERENCES. 



Clerc, W. 1906. Notes sur les cestodes d'oiseaux de l'Oural. II. Centralbl. 



Bakt. und Parasitenk., Jena, Abth. 1, vol. 42, No. 8, Dec. 11, Orig., pp. 713-730, 



figs. 1-31. 

 Fuhrmann, Otto. 1902. Die Anoplocephaliden der Vogel. Centralbl. Bakt. und 



Parasitenk., Jena, Abth. 1, vol. 32, No. 2, July 26, Orig., pp. 122-147, figs. 1-25. 

 . 1908. Die Cestoden der Vogel. Zool. Jahrb., Jena, Suppl. vol. 10, No. 1, 



pp. 1-232. 



1909. Die Cestoden der Vogel des weissen Nils. (In Jagerskiold, L. A., 



Results Swedish Zool. Expedition to Egypt and White Nile, 1901, No. 27, 55 pp., 



53 figs., Upsala.) 

 Kholodkovski, N. A. 1905. Eine Idiogenes-species mit wohlentwickeltem 



Scolex. Zool. Anz., Leipzig, vol. 29, No. 18, Dec. 12, pp. 580-583, figs. 1-5. 

 . 1906. Cestodes nouveaux ou peu connus. Arch, de parasitol., Paris, vol. 



10, No. 3, Oct. 15, pp. 332-347, text figs. 1-2, pis. 8-10, figs. 1-46. 

 Kowalewski, Mieczyslaw. 1906. Mitteilungen fiber eine Idiogenes-Species. 



Zool. Anz., Leipzig, vol. 29, No. 23, Feb. 6, pp. 683-686, figs. 1-3. 



