. Bulletin - United States National Museum. Science. NEMATODE PARASITES OF BIRDS 255 cal, only slightly projecting, in the lateral lines a little posterior to the curve formed by the anastomosing of the cordons. Male mm. long by 260/* wide. Tail (fig. 318 b) about 160// long, about 1/40 of total body length. Cordons 610/x long. Caudal alae membranous and transversely striated; no subdivision into 2 con- centric zones as in certain species of Acuaria. Four pairs of preanal and 5 pairs of postanal papillae. Spicules (fig. 318 c and d) unequal and dissimilar; the left 900//. long, flexible,
. Bulletin - United States National Museum. Science. NEMATODE PARASITES OF BIRDS 255 cal, only slightly projecting, in the lateral lines a little posterior to the curve formed by the anastomosing of the cordons. Male mm. long by 260/* wide. Tail (fig. 318 b) about 160// long, about 1/40 of total body length. Cordons 610/x long. Caudal alae membranous and transversely striated; no subdivision into 2 con- centric zones as in certain species of Acuaria. Four pairs of preanal and 5 pairs of postanal papillae. Spicules (fig. 318 c and d) unequal and dissimilar; the left 900//. long, flexible, the right 180//. long by 19//, wide, arcuate and robust. Female 6 to 12 mm. long by 360 to 400//. wide. Cordons 900 to 970/x long. Gedoelst describes a membranous expansion of the euti-. Figs. 316-318.— E'chinuuia horrida. 316, Head end. After Schneider, 1S66. 317, Head end. After Stossich, 1891. 31S, Echinuria lepxoptili. a, Head end; b, male tail; c, left spicule; d, right spicule (the small drawing showing ORIFICE AT FREE END DILATED ON PRESSURE) ; C, FEMALE TAIL. AFTER GeNDKE. 1926 cula along the lateral lines of the caudal region, extending from a point 50//. from the tail end and measuring 400/*, wide. Gendre does not mention this; he states that the dilation of the body just ante- rior to the vulva, as described by Gedoelst, is due to contraction of the body. Anus 65 to 95//,, according to Gedoelst, or 50/t, according to Gendre (fig. 318 e), from tail end. Vulva 80 to 145//., according to Gedoelst, or 210/*., according to Gendre, anterior to anus. Eggs 32/x by 20/*. Life history.—Unknown; probably involves intermediate stages in other hosts; (see E. unrinafa, p. 246). Distribution.—Africa (Belgian Congo and Dahomey). ECHINURIA LONGEORNATA (Molin. I860) Cram, 1927 Synonyms.—Dispharagus longeornatus Molin, 1860c; Spiroptera ardeae-maguari* Molin, 1860; Acuaria longeornata (Molin. 1860) e Catalogue of Vienna Please note that these images are extracted from
Size: 2260px × 1106px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
