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A superfamily of arthropod-borne nematode parasites of the alimentary tract, respiratory system, or orbital, nasal, or oral cavities of vertebrates. They are common and frequently pathogenic parasites of domestic mammals and birds, producing ulcerations from penetration of the anterior end of these spiny worms through the alimentary lining; includes the families Acuariidae, Gnathostomatidae, Rictulariidae, Seuratidae, Physalopteridae, Spiruridae, and Thelaziidae.
[G. speiroeidēs, spiral]
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References in periodicals archive ?
Fauna helmintologica do Peru: Nova especie do genero Skrjabinoclava Sobolev, 1943 (Nematoda, Spiruroidea).
Using light microscopy, the nematodes were identified as spiruroids of the genus Procyrnea (Spiruroidea: Habronematidae) according to the following characteristics: the body presented fine transverse striations, buccal region consisting of two pseudolabia and dorsal and ventral labia each consisted of two submedial lobels and small teeth on the border of pseudolabia, thick-walled buccal cavity, esophagus divided into a short anterior muscular part and a long posterior glandular part, a coiled male tail with caudal alae, unequal spicules, presence of a gubernaculum, and a vulva in females near their midbody (Chabaud, 1975).
Distribution of the infection by Camallanus corderoi (Nematoda: Spiruroidea) in different autochthonous hosts and localities of the Valdivia river basin, Chile.
Nematoda: Spiruroidea. Memorias do Instituto Oswaldo Cruz., 32: 221-223.
Studies on the taxonomy and life history of echinocephalid worms (Nematoda: Spiruroidea) with a complete description of Echinocephalus pseudouncinatus Millemann, 1951.
Species of Ascarops, Gongylonema and Physocephalus, superfamily Spiruroidea, are generally recognized as parasites of birds and mammals (Anderson, 1992), with initial development occurring in the hemocoel of an insect intermediate host.
Scanning electron microscopy of Turgida turgida (Nematoda: Spiruroidea), parasite of the Virginia opossum, Didelphis virginiana, from southern California.