Archignathidae is distinguished by a lack of dentition in the oral groove. They are commonly found in bulk food stores in unbagged clusters. Considered by many synthetic taxonomists to be the most basal of occlupanids, possibly due to their retention of an uncomplicated oral groove. Plus there is a heck of a lot of them. There is talk about breaking out some subfamilies into their own taxon, but for now it safely remains the idle fancy of overexcited lab interns.
Aculeopalpus phaseolus
Ampullaenigma thermastris
Cardioris amplifolium
Cardioris cirrhosoma
Chirophragma necopinus
Cryptocolax lilidonum
Cyrtotergum albus
Cyrtotergum rosenbergeri
Cyrtotergum viridis
Deuterofenestrum texastertrochus
Deuterofenestrum trexlerii
Diplacofelis alveustoma
Diplacofelis montrealensis
Diplacofelis ridwellensis
Diplacofelis wangi
Euschizus veterinarius
Glycodontis charma
Gratacurvatis austeja
Gratacurvatis gyrodacna
Gratacurvatis ospala
Hadroklonis imbrex
Hadroklonis tegula
Halotrema corculum
Halotrema therapion
Helicogenys voluta
Hyalocardis novicyanus
Hypersoma cordatus
Hypersoma minutimaxilla
Illicilondinium mckelveyi
Infirmimaxilla kurisu
Inflectoculus cleidophylax
Kurisuphenax edentulus
Kurisuphenax secondus
Kurisuphenax ultimus
Latericavus pareidolia
Longilex becneli
Malumcardioris renatusi
Megapanis gregjubyi
Megapanis huningi
M. h. conversus
Megapanis hursti
Megapanis sonorus
M. s. chiralis
Megapanis tarassovae
M. t. treptocardia
Niphofacies buccacoris
Oosoma feniseca
Pagocardis pollicaris
Palmaplanus lacrimocavus
Protocrena astyplanktos
Protocrena discilavator
Protocrena escharops
Protocrena gigantis
Protocrena pachyplatus
Protocrena lattubuca
Protocrena longibranchium
Protocrena obtusilateri
Protocrena osorbis
Protocrena similaris
Protocrena variotaedium
Pseudopalpis hayesi
Quadratopalpus ilex
Scabroderma balaniphagus
Scindocorpus bivultus
Scindocorpus vitreus
Stenocorpus arcanus
Stenocorpus dissimilis
Stenocorpus lactichroma
Stenocorpus oscitatio
Stenocorpus remisoma
Zygastrion amiculis