title: A new dicyemid from Octopus hubbsorum (Mollusca:Cephalopoda:Octopoda).
abstract: A new species of dicyemid mesozoan is described from Octopus hubbsorum Berry, 1953, collected in the south of Bahia de La Paz, Baja California Sur, México. Dicyema guaycurense n. sp. is a medium-size species that reaches about 1,600 µm in length. It occurs in folds of the renal appendages. The vermiform stages are characterized as having 22 peripheral cells, a conical calotte, and an axial cell that extends to the base of the propolar cells. Infusoriform embryos consist of 39 cells; 1 nucleus is present in each urn cell and the refringent bodies are solid. This is the first of a dicyemid species from a host collected in the Gulf of California.
authors.affiliation: Instituto de Investigaciones Marinas (CSIC), Eduardo Cabello 6, 36208 Vigo, Spain.
authors.forename: Sheila
authors.initials: S
authors.lastname: Castellanos-Martinez
authors.forename: M Carmen
authors.initials: MC
authors.lastname: Gómez
authors.forename: F G
authors.initials: FG
authors.lastname: Hochberg
authors.forename: Camino
authors.initials: C
authors.lastname: Gestal
authors.forename: Hidetaka
authors.initials: H
authors.lastname: Furuya
mesh_terms: D000818:Animals; D007448:Invertebrates / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D008297:Male; D008800:Mexico; D049831:Octopodiformes / Q000469:parasitology*; D012623:Seawater