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Structure of Trichosphaerium micrum sp. n.
Author(s) -
ANGELL ROBERT W.
Publication year - 1975
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.1550-7408.1975.tb00937.x
Subject(s) - sponge spicule , spicule , amoeba (genus) , biology , acicular , paleontology , substrate (aquarium) , anatomy , botany , crystallography , chemistry , ecology , microstructure
SYNOPSIS Trichosphaerium micrum sp. n., a marine testate rhizopod, is described. It is ∼ 36 μ in diameter, covered with acicular, hollow, blunt‐ended calcite spicules, 1–3 μm in length, that lie flat in a fibrous sheath. The test is penetrated by circular semipermanent apertures through which extend short dactylopodia. Locomotion is by lobopodia which the organism uses to adhere to the substrate. It is multinucleate with an average of 9 nuclei/individual. The type locality is the shallow littoral of Big Pine Key, Florida. Spicules of other species are described and it is suggested that until more is known about the biology of the group, species classification in the order Trichosida be based on spicule structure and orientation, as well as the size of the organism.