A synopsis of entozoa and some of their ecto-congeners, observed by the author / by Joseph Leidy.

  • Leidy, Joseph, 1823-1891.
Date:
1856
Catalogue details

Licence: Public Domain Mark

Credit: A synopsis of entozoa and some of their ecto-congeners, observed by the author / by Joseph Leidy. Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    specimens from the source given, yet I think there is little doubt of its existence, from the circumstance that sportsmen and hunters have frequently informed me, they had seen leeches in the liver of the deer, which they supposed the animai had swallowed in drinking. Also reported to exist in the ox, Bos taunts, and in the horse, Equus caballus. 21. Distomum variabile Leidy. Var. a. Body white, variegated with black in the course of the oviduct, clavate, posteriorly obtuse, minutely echinated. Neck long, narrow, cylindrical, echinated. Oral and ventral acetabula nearly equal; the latter one prominent, situated at the base of the neck. Length to 6 lines; breadth of body £ a line. Var. b. Body flattened ovate, continuous with the head, anteriorly narrowed, posteriorly obtuse, color and echination as in the preceding variety. Length 'l\ lines, breadth 2 lines. Variety a is found attached to the sides of the cavity of the lungs of Tro- pidonotus sipedon, singly or in groups up to six, with the head and neck buried in tumors, as in the case of the attachment of Echinorhynchi. Variety b is found detached in the mucus of the lungs and trachea. Common ;—obtained in De- cember, when the water snakes were hybernating. 22. Distomum horridum Leidy. Disloma horridum Leidy, Journ. A. N. S., 2d ser., i, 303. From the excretory duct of the kidneys of the Boa constrictor. 23. Distomum variegatum Rud. Leidy, Pr. A. N. S., v, 207. From the lungs of Rana pipiens. 24. Distomum retusum Dug. Leidy, Pr. A. N. S., v, 207. From the intestine of Rana halecina. 25. Distomum cygnoides Zeder. Leidy, Pr. A. N. S., v, 207. From the urinary bladder of Rana pipiens, R.palustris, R. halecina; Salaman- dra maculata, S. rubra, S. salmonca. 26. Distomum longum Leidy. Pr. A. N. S., v, 206. From the mouth of Esox estor. 27. Distomum terreticolle Rud. Leidy, Pr. A. N. S., v, 206. From the stomach of Esox reticulatus. 28. Distomum incivile Leidy. Body flat, elongated elliptical; echinated be- tween the oral and ventral acetabula, which are equal, and the latter one is hemispherical and sessile. Length 1\ to 3 lines, breadth 3-5ths to 4-5ths of a line. Obtained from the intestine of Leiostomus obliquus. 29. Distomum clavatum ? Rud. Body pyriform, transversely annulated, pli- cated. Neck curved conical, 3 lines long. Ventral acetabulum oblique, pro- minent, at the base of the neck, 3 lines in diameter, with a circular aperture much larger than the mouth. Length 1 inch, breadth 4 lines. One specimen in the collection of the Academy. Locality unknown. 30. Distomum vagans Leidy. Distoma hclicis Leidy, Pr. A. N. S., iii, 220. Distomum pericardium Creplin, Arch. f. Naturg. xv, 78. Distoma vagans Leidy, Journ. A. N. S., 2d ser., i, 304. Cercariaeum helicis alternatce Diesing, Rev. d. Cere. 24. Cercariaeum vagans Diesing, Rev. d. Cere. 24. Found in Helix allernata and in H. albolabris.