1. Genistelloides helicoides
        (RMBL-L-13) Genistelloides helicoides Williams & Lichtwardt (Harpellales,
        Legeriomycetaceae) from the hindgut of a stonefly nymph (Zapada haysi)
        from a Rocky Mountain stream. Developing trichospores. Note the coiled
        appendages within the generative cells from which the trichospores grow.
        In this genus the appendages become visible before the exogenous
        trichospores begin to develop.

2. Genistelloides helicoides
        (RMBL-M-17) Genistelloides helicoides. Released trichospore with two
        coiled appendages. Appendages may function to restrain spores from
        drifting downstream, thus retaining them in the vicinity of the host
        population and leading to possible ingestion and germination in the
        insect gut.

3. Smittium culisetae
        (HAW-A-34) Smittium culisetae Lichtwardt (Harpellales, Legeriomycetaceae).
        Sporulating thallus and released trichospores with a single appendages.
        Axenic culture (JAP-77-8) made from the hindgut of a mosquito larva
        collected in a stone trough at a Shinto shrine in Japan. This fungus is
        worldwide and usually inhabits mosquito larvae, but is known to occur in
        several other families of dipteran larvae.

4. Smittium alpinum
        (MBL-E-8) Smittium alpinum Lichtwardt Biconical zygospores and
        oval trichospores. From the hindgut of an aquatic midge larva near
        the continental Divide in Glacier National Park. The fungus is known
        only from larvae of Diamesa sp. (Chironomidae) from the Rocky
        Mountains, the Alps, northern Sweden.

5. Stachvlina pedifer
        (MBL-HH-29) Stachvlina pedifer (Williams & Lichtwardt Harpellales,
        Harpellacae) in the peritrophic membrane (midgut) of a midge larva
        (Boreoheptagyia lurida) from turbulent waters of a Rocky Mountain
        stream. The simple, holocarpic thallus of this species, usually with 4
        trichospores, penetrates through the peritrophic membrane as a means
        of attachment, an unusual feature in the Harpellaceae.

6. Arundinula abyssicola
        (KU-32) Arundinula abyssicola Van Dover & Lichtwardt (Eccrinales,
        Eccrinaceae). Unbranched thalli producing sporangiospores. From the
        stomach (foregut) of a galatheid squat lobster (Munidopsis subsquamosa)
        collected at 2600 m depth at the "Rose Garden." One of several
        hydrothermal vent sites in the Galapago Rift where this eccrinid has been
        found. The fungus has also been collected at a hydrothermal vent in the
        East pacific Rise.