. Bulletin - United States National Museum. Science. 286 BULLETIN 140, UNITED STATES NATIONAL MUSEUM Male 5 to 10 mm. long. Tail with thick swollen walls; 24 pairs of papillae, 4 of them postanal (Schneider figures (fig. 349<?) only 3 on one side). Two very unequal spicules, one short and thick, the other long, having a length double that of the space occupied by the papillae. Female 8 to 20 mm. long. Vulva 1/3 the total length from the posterior end; vagina posteriorly directed. Eggs, smooth, thick- shelled, elliptical. Life history.—Unknown. Distribution.—Africa (Egypt). SCHISTOROPHUS BIC
. Bulletin - United States National Museum. Science. 286 BULLETIN 140, UNITED STATES NATIONAL MUSEUM Male 5 to 10 mm. long. Tail with thick swollen walls; 24 pairs of papillae, 4 of them postanal (Schneider figures (fig. 349<?) only 3 on one side). Two very unequal spicules, one short and thick, the other long, having a length double that of the space occupied by the papillae. Female 8 to 20 mm. long. Vulva 1/3 the total length from the posterior end; vagina posteriorly directed. Eggs, smooth, thick- shelled, elliptical. Life history.—Unknown. Distribution.—Africa (Egypt). SCHISTOROPHUS BICUSPIS (Rudolphi, 1819) Railliet, 1916a Synonyms.—Spiroptera bicuspis Rudolphi, 1819; Dispharagus bi- cuspis (Rudolphi, 1819) Dujardin, 1845; Histiocephalus gracilis Diesing, 1851; Histiocephalus bicuspis (Rudolphi, 1819) Linstow, c.—"- 'Qo. c • ee« o eoeooooooo Fig. 349.—Schistorophus longicobnis. a, Lateral, view and b, front view of head ; c, male tail. Aftbr Schneider, 1866 Host.—Primary: T ring a helvetica (=Squatarola helvetica); also reported from Grus cinerea and Vanellus melwiw g aster ; secondary: Unknown. Location.—Between tunics of gizzard. Morphology.—Schistorophus (p. 284) : Body slender at the 2 ex- tremities, especially the anterior, twice as thick in middle portion. Head small, continuous with body and armed with papillae; to each side, posterior to the head, there is a spine or subulate tooth, directed sometimes horizontally, sometimes posteriorly. (In this species, as in S. bidens, the original description of only 2 processes is explained by the fact that those are the ones seen in profile; the others were evi- dently overlooked). Male mm. long; tail forming 2 turns of a spiral; membranous alae straight. Female 9 mm. long; tail ending in a short, flattened, recurved point, anterior to which is the anus. Life history.—Unknown. Distribution.—Europe (Austria (Vienna Museum)). Railliet (1916) states that this species is proba
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