There are approximately 43 species and subspecies in this genus: V. advena · V. alazanensis · V. americana · V. anitana · V. arguta · V. badensis · V. bassensis · V. compressa · V. cristellaroides · V. debilis · V. exilis · V. flabelloides · V. gaultina · V. gracilis · V. knighti · V. kochii · V. laminata · V. legumen · V. legumen arcuata · V. legumen elegans · V. linearis · V. listi · V. macilenta · V. modesta · V. mosquensis · V. obtusicosta · V. olssoni · V. peregrina · V. phragmifera · V. plummerae · V. prima · V. recta · V. riedeli · V. robusta · V. simondsi · V. simplex · V. sparsicostata · V. spinigera · V. striolata · V. subelegans · V. sublituus · V. suturalis · V. vertebralis
There are approximately 7 species and subspecies in this genus: S. cornutus · S. cornutus · S. occultus · S. platurus · S. salebrosus · S. swaini · S. wyberba
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