Echis romani TRAPE, 2018
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|Higher Taxa||Viperidae, Viperinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)|
|Synonym||Echis romani TRAPE 2018|
|Distribution||SW Chad, S Niger, Nigeria, N Cameroon, NW Central African Republic|
Type locality: Kumao, Chad, Lagone Oriental region, Baibokoum, 7°36’ N, 15° 36’ E)
|Types||Holotype: MNHN-RA 2018.0006, male (formerly IRD 2013.N); |
Paratypes: (n=24) MNHN 2018.0007, previously IRD 2026.N, MNHN 2018.0008, previously IRD 2157.N, MNHN 2018.0009, previously IRD 2135.N, MNHN 2018.0010, previously IRD 2038.N, MNHN 2018.0011, previously IRD 2100.N, MNHN 2018.0012, previously IRD 2230.N; IRD 2011.N, 2034.N, 2057.N, 2078.N, 2124.N, 2126.N, 2127.N, 2128.N, 2133.N, 2134.N, 2139.N, 2190.N, 2268.N, 2272.N, 2333.N and 2334.N, all collected by villagers from May 20 to 30, 2015 in the around Baïbokoum (07°35’-07°46’N / 15°35’-15°41’E) and IRD 2550.N and 2734.N collected by villagers in November 2015 in Laobida (09°12’N / 15°07’E) in Mayo Kebbi in Chad.
|Diagnosis||Diagnosis: A large species (up to 715 mm in total length) genetically distinct from other species of the E. ocellatus complex and characterized by the combination of following characters: (1) a large number of ventral scales (148 – 151.9 – 156 in males and 152 – 159.9 – 168 in females), (2) simple subcaudal scales at the number from 25 to 29 in males (average 27.1) and from 18 to 23 in females (average 20.9), (3) 29 to 31 dorsal rows keeled in the middle of the body in males (average 30.7) and 31 to 33 in females (mean 31.3), (4) a large number of small scales surrounding each eye (mean 16.2), (5) dorsal coloration pattern with brown vertebral stripe dark regularly interspersed with light spots, on the sides dark spots with white ocelli most often located next to the medio-dorsal light spots and the presence three to six dark spots on each ventral scale. (Trape 2018)|
|Comment||Distribution: see map in Trape 2018: 31 (Fig. 15).|
|Etymology||Named after Benigno Roman for his contributions to African herpetology and ichthyology.|
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