Following are all the leiognathid like words, in the list below.
OPLEGNATHID
100% like leiognathid
LEBIASINID
100% like leiognathid
LEPTOSCOPID
99.99% like leiognathid
LETHRINID
99.99% like leiognathid
LEPISOSTEID
99.98% like leiognathid
PSILORHYNCHID
99.98% like leiognathid
LEPTOCHARIID
99.98% like leiognathid
LEPTOLEPID
99.97% like leiognathid
PROCHILODONTID
99.97% like leiognathid
LINOPHRYNID
99.96% like leiognathid
CYNODONTID
99.96% like leiognathid
TRIGLID
99.96% like leiognathid
MONODACTYLID
99.95% like leiognathid
GYRINOCHEILID
99.95% like leiognathid
HALOSAURID
99.94% like leiognathid
SYMPHYSANODONTID
99.94% like leiognathid
MONOGNATHID
99.94% like leiognathid
TETRAODONTID
99.93% like leiognathid
MEGALICHTHYID
99.93% like leiognathid
ICHTHYOSTEGID
99.92% like leiognathid
TRICHODONTID
99.92% like leiognathid
OPISTHOGNATHID
99.92% like leiognathid
GEOTRIID
99.91% like leiognathid
DISTICHODONTID
99.91% like leiognathid
CYNOGNATHID
99.9% like leiognathid
CARANGOID
99.9% like leiognathid
COMPSOGNATHID
99.9% like leiognathid
ZANCLID
99.89% like leiognathid
GNATHORHIZID
99.89% like leiognathid
CHAETODONTID
99.88% like leiognathid
RHIZODONTID
99.88% like leiognathid
HEMIGALEID
99.88% like leiognathid
OSTEOGLOSSID
99.87% like leiognathid
BATHYLAGID
99.87% like leiognathid
GONOSTOMATID
99.86% like leiognathid
CYNOGLOSSID
99.86% like leiognathid
PHOLIDICHTHYID
99.86% like leiognathid
GIGANTACTINID
99.85% like leiognathid
SYNGNATHIFORM
99.85% like leiognathid
XENISTHMID
99.84% like leiognathid
GASTEROPELECID
99.84% like leiognathid
RHINOCHIMAERID
99.84% like leiognathid
SCIAENID
99.83% like leiognathid
CHEILODACTYLID
99.83% like leiognathid
NEOCERATIID
99.82% like leiognathid
LACTARIID
99.82% like leiognathid
POTAMOTRYGONID
99.82% like leiognathid
PALAEONISCID
99.81% like leiognathid
LATID
99.81% like leiognathid
TRACHICHTHYID
99.8% like leiognathid
LATRID
99.8% like leiognathid
SILLAGINID
99.8% like leiognathid
THAUMATICHTHYID
99.79% like leiognathid
AULORHYNCHID
99.79% like leiognathid
BRANCHIOSTEGID
99.78% like leiognathid
HEMIODONTID
99.78% like leiognathid
GYMNURID
99.78% like leiognathid
ATELEOPODID
99.77% like leiognathid
OSTRACIID
99.77% like leiognathid
HOPLICHTHYID
99.76% like leiognathid
ICHTHYOSAURID
99.76% like leiognathid
LOPHIID
99.76% like leiognathid
TRIODONTID
99.75% like leiognathid
CHANNICHTHYID
99.75% like leiognathid
CHAMPSODONTID
99.74% like leiognathid
CHIASMODONTID
99.74% like leiognathid
PLECOGLOSSID
99.74% like leiognathid
CAESIONID
99.73% like leiognathid
CALLANTHIID
99.73% like leiognathid
TETRAODONTIFORM
99.72% like leiognathid
PTILICHTHYID
99.72% like leiognathid
SYNODONTID
99.72% like leiognathid
PLATYRHINID
99.71% like leiognathid
CONGIOPODID
99.71% like leiognathid
CAENAGNATHID
99.7% like leiognathid
TETRAROGID
99.7% like leiognathid
CALLIONYMID
99.7% like leiognathid
URANOSCOPID
99.69% like leiognathid
RHINID
99.69% like leiognathid
BATHYCLUPEID
99.68% like leiognathid
CHIMAERID
99.68% like leiognathid
ELEOTRID
99.68% like leiognathid
APHYONID
99.67% like leiognathid
PLATYCEPHALID
99.67% like leiognathid
ONEIRODID
99.66% like leiognathid
AMPHIGNATHODONTID
99.66% like leiognathid
LINOGNATHID
99.66% like leiognathid
GONORYNCHID
99.65% like leiognathid
SOLENOSTOMID
99.65% like leiognathid
PALIGUANID
99.64% like leiognathid
GONIOPHOLIDID
99.64% like leiognathid
DACTYLOPTERID
99.64% like leiognathid
PLECTOGNATH
99.63% like leiognathid
CHILODONTID
99.63% like leiognathid
POECILIID
99.62% like leiognathid
GOBIOID
99.62% like leiognathid
SYNGNATHID
99.62% like leiognathid
LEONTINIID
99.61% like leiognathid
GNATHIID
99.61% like leiognathid
HIMANTOLOPHID
99.6% like leiognathid
