Djokoiskandarus annulata (DE JONG, 1926)
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Djokoiskandarus annulata
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| Higher Taxa | Homalopsidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: Trans-Fly Mangrove Snake, Banded watersnake |
| Synonym | Cantoria annulata DE JONG 1926: 304 Cantoria annulata — DAAN & HILLENIUS 1966: 137 Djokoiskandarus annulata — MURPHY 2011 Cantoria annulata — WALLACH et al. 2014: 146 Djokoiskandarus annulata — MURPHY & VORIS 2014: 14 |
| Distribution | Indonesia (Irian Jaya), Papua New Guinea Type locality: Prins Frederik Hendrik Island, West New Guinea (about 7°56'S and 138°21'E). |
| Reproduction | ovovivparous |
| Types | Holotype: ZMA.RENA 11065 |
| Diagnosis | Diagnosis (genus): Dorsal scale rows 21 at mid body; internasal separates prefrontal and nasals scales; frontal’s contact with the internasal makes this species readily distinguishable from all other homalopsids, including Cantoria violacea which has 19 scale rows at mid body and the prefrontal scales in broad contact. A number of species of Enhydris have 21 scale rows at mid body, but all of them have the nasal scales in contact. D. annulatus also has keeled scales in the first three dorsal scale rows just anterior to the vent. A male is 578 mm in total length with a 108 mm tail; four females were 277–548 mm in total length. See Murphy (2007) for a more exhaustive description. |
| Comment | Habitat: marine (sea snake). Diet: crustaceans Type species: Cantoria annulata DE JONG 1926: 304 is the type species of the genus Djokoiskandarus MURPHY 2011. |
| Etymology | Named after the diminutive form (“annul-”) of Latin “anus” = ring. The genus is named in honour of Indonesian herpetologist Djoko Iskandar. Gender of genus is masculine. |
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