Crustacean spermatozoa are among the most peculiarly modified germ cells in the animal kingdom. Many of their striking cytological specializations may be observed in the sperm cells or Emerita analoga, the so-called sand crab. This animal has been used by the writer for studies on spermatogenesis and on spermatozoan behavior during the summer or 1951, 1952, and 1953 at the Pacific Marine Station.
","abstract_html":"<p>Crustacean spermatozoa are among the most peculiarly modified germ cells in the animal kingdom. Many of their striking cytological specializations may be observed in the sperm cells or Emerita analoga, the so-called sand crab. This animal has been used by the writer for studies on spermatogenesis and on spermatozoan behavior during the summer or 1951, 1952, and 1953 at the Pacific Marine Station.</p>","abstract_has_math":false,"creators":["Menesini, Mario Martin"],"institution":null,"degree_name":"Master of Arts (M.A.)","degree_level":"Thesis","degree_discipline":"Zoology","degree_department":null,"school":null,"contributors":["Alden E. Noble"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1954,"date_issued":"1954-01-01T08:00:00Z","date_published":"1954-01-01T08:00:00Z","updated_at":"2026-07-24T05:37:06Z","subjects":["Spermatogenesis","Sand crabs","Animal Sciences","Life Sciences","Marine Biology","Zoology"],"languages":[],"rights":[],"rights_urls":["http://rightsstatements.org/vocab/NKC/1.0/"],"identifier_entries":[]},"links":{"outbound_url":"https://scholarlycommons.pacific.edu/uop_etds/1250","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Alden E. Noble"]},{"key":"dc:creator","label":"Author","values":["Menesini, Mario Martin"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2018-06-29T09:02:52Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Zoology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Arts (M.A.)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Spermatogenesis","Sand crabs","Animal Sciences","Life Sciences","Marine Biology","Zoology"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["http://rightsstatements.org/vocab/NKC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://scholarlycommons.pacific.edu/uop_etds/1250"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Crustacean spermatozoa are among the most peculiarly modified germ cells in the animal kingdom. Many of their striking cytological specializations may be observed in the sperm cells or Emerita analoga, the so-called sand crab. This animal has been used by the writer for studies on spermatogenesis and on spermatozoan behavior during the summer or 1951, 1952, and 1953 at the Pacific Marine Station.
"]},{"key":"dc:source","label":"Dc Source","values":["29"]},{"key":"dc:title","label":"Title","values":["Spermatogenesis in the sand crab Emerita Analoga"]}]}],"canonical_facts":{"dc:contributor":["Alden E. Noble"],"dc:creator":["Menesini, Mario Martin"],"dc:date.available":["2018-06-29T09:02:52Z"],"dc:description.abstract":["Crustacean spermatozoa are among the most peculiarly modified germ cells in the animal kingdom. Many of their striking cytological specializations may be observed in the sperm cells or Emerita analoga, the so-called sand crab. This animal has been used by the writer for studies on spermatogenesis and on spermatozoan behavior during the summer or 1951, 1952, and 1953 at the Pacific Marine Station.
"],"dc:identifier":["https://scholarlycommons.pacific.edu/uop_etds/1250"],"dc:rights":["http://rightsstatements.org/vocab/NKC/1.0/"],"dc:source":["29"],"dc:subject":["Spermatogenesis","Sand crabs","Animal Sciences","Life Sciences","Marine Biology","Zoology"],"dc:title":["Spermatogenesis in the sand crab Emerita Analoga"],"thesis:degree_discipline":["Zoology"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["Master of Arts (M.A.)"]},"updated_at":"2026-07-24T05:37:06Z"}