The Animal Parasites of Man

by Harold Benjamin Fantham; Max Braun; J. W. W. Stephens; Fred. V. Theobald

Syn.: Strongylus fordi, Daniels, 1908; Strongylus gibsoni, Stephens, 1909; Nematodirus fordi, Leiper, 1911.

Male 21 mm. long by 0·4 mm. thick. Cervical papillæ 0·45 mm. behind the head. Spicules about 7 mm. long, i.e., one-third of the body length. At the level of the postero-external rays of the bursa, the bursa has a projecting lobule.

Fig. 317.—Mecistocirrus fordi: bursa of male, dorsal view. The rays are (1) postero-external, (2) median (= postero-median + antero-median), (3) antero-external, (4) latero-anterior, (5) antero-anterior. These two latter are parallel. The posterior ray is absent. (After Stephens.)

Female 25 mm. long. Anus 0·2 mm., vulva 0·5 mm. from the tip of tail. Eggs 100 µ by 53 µ.

Sub-family. Ancylostominæ, Railliet, 1909.

Strongylidæ with buccal capsule, well developed. Uteri divergent. Parasitic in the alimentary canal, exceptionally in the respiratory system.

Group. Œsophagostomeæ, Railliet and Henry, 1909.