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University of the Pacific

Probolitrema tomalis sp. nov. (Trematoda) from Dasyatis dipterura and Brachylaemus virginianus (Dickerson) (Trematoda) from Didelphys virginiana

Abstract

dc:description.abstract

<p>The genus Probolitrema was established by Looss (1901) in recognition of the location of vitellaria and multiple testes entirely outside the extra caecal field in Anaporrhutum richardii Lopez (1888) which differentiated it from A.albidum Ofenheim (1900) with the vitellaria within and the testes partly within and partly without the intra-caecal field. Ofenhein had created the genus Anaporrhutum for the above two species because of their multiple testes. A.albidum was a new species described by him; his A.richiardii Lopez specimens he considered to be the same species as Distomum richiardii Lopez, described in detail by Monticelli in 1893. Looss pointed out that they were not identical; Ofenheim’s specimens possessed succkers of nearly eual size while Monticelli’s specimens (which were probably D.richiardii Lopez) possessed a very large and powerful ventral sucker. Looss therefore retained P.richiardii Lopez as the type species of the genus and created a new species, P.capense, for A.richiardii Ofenheim.</p><p>ABout sixty individuals of Probolitrema tomalis were obtained from the coelom of a stingray, Dasyatis dipterura, on July 2, 1933, from Tomales Bay, California. No observations concerning the living animal were recorded.</p>

Degree

thesis:*
Name thesis:degree_name
Master of Arts (M.A.)
Level thesis:degree_level
Thesis
Discipline thesis:degree_discipline
Zoology
Year dc:date.available
1935

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Graves, Elsie Mae
Contributors dc:contributor
  • Alden E. Noble

Subjects

dc:subject × 4

Rights

dc:rights

Identifiers

dc:identifier.*
Repository record dc:identifier
https://scholarlycommons.pacific.edu/uop_etds/961
OAI identifier oai:identifier
oai:scholarlycommons.pacific.edu:uop_etds-1960

Chain of custody

source
Harvested from
University of the Pacific
Base URL
scholarlycommons.pacific.edu/do/oai/
Last updated
2026-07-24
Source record
OAI-PMH GetRecord
citation

Graves, Elsie Mae. Probolitrema tomalis sp. nov. (Trematoda) from Dasyatis dipterura and Brachylaemus virginianus (Dickerson) (Trematoda) from Didelphys virginiana. Thesis thesis, 1935. https://scholarlycommons.pacific.edu/uop_etds/961