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Actinocephalus carrilynnae N. Sp. (Apicomplexa: Eugregarinorida) from the Blue Damselfly, Enallagma civile (Hagen)
Author(s) -
RICHARDSON SARAH,
JANOVY J.
Publication year - 1990
Publication title -
the journal of protozoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 0022-3921
DOI - 10.1111/j.1550-7408.1990.tb01266.x
Subject(s) - damselfly , biology , parasite hosting , anatomy , zoology , odonata , world wide web , computer science
.Actinocephalus carrilynnae , a new species of actinocephalid gregarine, is described from the blue damselfly, Enallagma civile . Trophozoites are unpaired, lying between the host's gut epithelium and peritrophic membrane, and attain a maximum length of at least 1,700 μ m. Protomerites are subspherical. Epimerites are globular, hemispherical with stub‐shaped or truncated cone‐shaped projections and are attached to the protomerite by means of a fluted stalk. Protomerite‐deutomerite length ratio is 0.12 and relatively constant regardless of trophozoite length. Gametocysts are subspherical, 270–280 μ m in diameter, and undergo sporogenesis in 24–36 h, dehiscing by rupture. Spores are biconical, slightly crescent‐shaped, and very uniform in size: 15 μ m long and 4–5 μ m wide. The parasite infects both adult and naiad hosts.