. Bulletin - United States National Museum. Science. 258 BULLETIN 140, UNITED STATES NATIONAL MUSEUM 1883) Kailliet, Henry, and Sisoff, 1912; Hannannia squamata (Lins- tow, 1883) Stiles and Hassall, 1920. Hosts.—Primary: Phalacrocorax carbo, Carbo cormoranus; sec- ondary: Unknown. Location.—Intestine. Morphology.—Echinuria (p. 244) : Mouth with 2 rounded hyaline lateral lips, only slightly projecting. Esophagus one-fourth of total body length. Tail 1/288 of body length. Body attenuated anteriorly and thickened posteriorly. In the submedian lines are cordons (fig. 321« and b) made up of peculia
. Bulletin - United States National Museum. Science. 258 BULLETIN 140, UNITED STATES NATIONAL MUSEUM 1883) Kailliet, Henry, and Sisoff, 1912; Hannannia squamata (Lins- tow, 1883) Stiles and Hassall, 1920. Hosts.—Primary: Phalacrocorax carbo, Carbo cormoranus; sec- ondary: Unknown. Location.—Intestine. Morphology.—Echinuria (p. 244) : Mouth with 2 rounded hyaline lateral lips, only slightly projecting. Esophagus one-fourth of total body length. Tail 1/288 of body length. Body attenuated anteriorly and thickened posteriorly. In the submedian lines are cordons (fig. 321« and b) made up of peculiar ring-like bands which appear on the margin as posteriorly directed scales; the cordons anastomose 1 mm. from the head end; at each point of anastomosis there is a large 3-pointed cervical papilla from which there extends posteriorly. Fig. 321.—Echinuria squamata. a, Anterior end; b, detail of cordon. After Linstow, 1883 a simple straight cordon, according to Linstow. There is a ques- tion as to whether this simple straight cordon as described by Lins- tow may not be a lateral ala or a prominent lateral line; he states that these cordons are in the dorsal and ventral lines, but as they proceed from the lateral cervical papillae they should be in the lateral lines. Male unknown. Female 24 mm. long by 72G> wide. Eggs 39/x by 24/*, thick-shelled. Life history.—Unknown; probably involves intermediate stages in other hosts. Distribution.—Asia (Turkestan). Genus RUSGUNIELLA Seurat, 1919a Synonyms.—Filaria Mueller, 1787, part; Acuaria Bremser, 1811, part; Spiroptera Rudolphi, 1819, part; Dispharagus Dujardin, 1845, part. Gene'i te diagnosis-.—Acuariinae (p. 211) : Body elongate, relatively slender. Cephalic region with 2 cutaneous ornamentations, crescent. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the origin
Size: 2365px × 1057px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience