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Scientific classification
Domain: Eukaryota
(unranked): Sar
Superphylum: Alveolata
Phylum: Apicomplexa
Class: Conoidasida
Subclass: Gregarinasina
Order: Archigregarinorida
Family: Selenidioididae
Genus: Veloxidium

Veloxidium leptosynaptae

The Veloxidium are a genus of parasitic protozoa in the phylum Apicomplexa. Species in this genus infect marine invertebrates.


This species was described in 2012 by Wakeman and Leander.[1]

There is one species in this genus - Veloxidium leptosynaptae.

This species appears to be the nearest sister lineage to a diverse clade of marine eugregarines (lecudinids and urosporids).


This species infects the sea cucumber Leptosynapta clarki.

Life cycle[edit]

The parasite infects the gastrointestinal tract and is presumably transmitted by the orofaecal route but the details of this mechanism are presently unknown.


  1. ^ Wakeman KC, Leander BS (2012) Molecular phylogeny of Pacific Archigregarines (Apicomplexa), including descriptions of Veloxidium leptosynaptae n. gen., n. sp., from the sea cucumber Leptosynapta clarki (Echinodermata), and two new species of Selenidium. J Eukaryot Microbiol 59(3):232-45. doi: 10.1111/j.1550-7408.2012.00616.x