| Diagnosis | Diagnosis (genus Mesoamericus). Species of Mesoamericus gen. nov. have (1) claw sheath, present, (2) contact between the nasal and rostral scales, present, (3) scales in contact with the nasal scale, six, (4) postnasal scales, two, (5) position of the nostril in the nasal scale, posterior, (6) keels on dorsal body scales, absent, (7) digits per limb, five, (8) longest toe lamellae, 11–18, (9) dorsal scale rows, n/a (10) relative head width, 12.0–14.0, (11) relative rostral height, 65.0– 67.0, (12) relative frontonasal length, n/a, (13) relative interparietal distance, n/a, (14) relative axilla-groin distance, n/a.
From Siderolamprus, we distinguish Mesoamericus gen. nov. by the claw sheath (present versus absent in Siderolamprus) and relative rostral height (65.0–67.0 versus 44.7–63.9) (Schools & Hedges 2021). |
| References |
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