. Elementary text-book of zoology, tr. and ed. by Adam Sedgwick, with the assistance of F. G. Heathcote. 352 XEilATHELMINTlIES. Fam. Strongylidse. The male genital opening is placed at the hinder end of the body, at the bottom of an umbrella- or bell-shaped bursa, the margin of which is furnished with a varying number of papillae. Eustrongylus Dies. With six projecting oral papillae, and a row of papillae on either lateral line. The bursa is bell-shaped and completely closed, with regular muscular walls and numerous marginal papillte. There is only one spiculum. The female genital opening is f
. Elementary text-book of zoology, tr. and ed. by Adam Sedgwick, with the assistance of F. G. Heathcote. 352 XEilATHELMINTlIES. Fam. Strongylidse. The male genital opening is placed at the hinder end of the body, at the bottom of an umbrella- or bell-shaped bursa, the margin of which is furnished with a varying number of papillae. Eustrongylus Dies. With six projecting oral papillae, and a row of papillae on either lateral line. The bursa is bell-shaped and completely closed, with regular muscular walls and numerous marginal papillte. There is only one spiculum. The female genital opening is far forward. The larvae live encysted in fishes. {Filaria cystica from SymbrancTms). E. gigas Kud., the body of the female is three feet in length, and only twelve mm. thick. It lives singly in the pelvis of the kidney of the Seal and Otter, and very rarely in Man. Strongylvs Rud. With six oral papillae and small mouth. Two conical cervical papillae upon the lateral lines. The pos- terior end of the male has an umbrella-like incom- pletely closed bursa. Two equal spicula, usually with unpaired supporting organ. The female sexual opening is sometimes approached to the posterior end of the body. They live for the most part in the lungs and bronchial tubes. St. longevaginatus Dies. Body 26 mm. long, 5 to 7 mm. thick. The female sexual opening lies directly in front of the anus, and leads into a simple ovarian tube. Only once found in the lung of a six-year old boy, in Klausen- burg. Mehlis, in the bronchial tubes of the pig. Rud., in the bronchial tubes of the sheep. St. commutatus Dies., in the trachea and bronchial tubes of the hare and rabbit. St. auricularis Rud., in the small intestine of Batraclda. Dochmius Duj. With wide mouth and horny oral capsule, the edge of which is strongly toothed. Two ventrally placed teeth project at the bottom of the oral capsule, while on the dorsal wall a conical spine projects obliquely forwards. D. duodcnalis Dub. (Ancyl
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