Calamophis jobiensis MEYER, 1874
Can you confirm these amateur observations of Calamophis jobiensis?
|Higher Taxa||Homalopsidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)|
|Common Names||E: Yapen Island Stout-tailed Snake|
|Synonym||Calamophis jobiensis MEYER 1874: 10|
Brachyorrhos jobiensis — PETERS & DORIA 1878
Calamophis jobiensis — SAUVAGE 1879: 60
Brachyorrhos jobiensis — MCDOWELL 1980
Brachyorrhos jobiensis — MURPHY 2007
Calamophis jobiensis — MURPHY 2012
Calamophis jobiensis — MURPHY & VORIS 2014: 7
Calamophis jobiensis — WALLACH et al. 2014: 143
|Distribution||Indoensia (Jobi = Yapen Island)|
Type locality: Ansus, Yapen, Indonesia (about 1°43'2"S, 136°7'57"E)
|Types||Holotype: MTD (= MTKD) Dresden Museum, destroyed in WWII|
|Diagnosis||Diagnosis (genus). Rostral broader than tall, nasal scale undivided, quadrangular; nares tiny, crescent-shaped, valvular; internasal single; postocular single; dorsal scales in 19 rows that are reduced to 17 anterior to vent will readily separate these snakes from Brachyorrhos; dorsal scales lanceolate, imbricate; base of tail constricted; tail thick and tapers slowly to almost blunt tip; males of some species have tubercles on scales in first four rows just anterior and posterior to vent, premaxillary bone present (MURPHY & VORIS 2014).|
Diagnosis. This diagnosis is based on a translation of the original description: 164 ventrals and 10 subcaudals. Upper labials six; third and fourth enter orbit, eight lower labials, one preocular, one postocular; pentagonal internasal contacts rostral with one side and penetrates between prefrontals; subcaudals divided (MURPHY & VORIS 2014).
|Comment||Type species: Calamophis jobiensis MEYER 1874 is the type species of the genus Calamophis MEYER 1874.|
Diet: vermivorous (worm-eating)
Synonymy: Boulenger (1893) considered Brachyorrhos jobiensis a junior synonym of Brachyorrhos albus (Linnaeus) apparently without actually examining any specimens. Authors of regional reptile checklists (Rooij, 1917; Kopstein, 1926; de Haas, 1950; Welch, 1988) followed Boulenger’s arrangement for Brachyorrhos albus.
Distribution: The Papua New Guinea locality for B. jobiensis in Iskandar and Colijn (2001) is based on Mainophis robusta, which is a synonym of the elapid Furina tristis (Shea & Sadlier, 1999) and should not be included in synonymies of Calamophis or Brachyorrhos.
|Etymology||Named after the island of Yapen which has also been called Japen and Jobi. Therefore, C. jobiensis is likely named after the Indonesian island.|
Etymology (genus). It is unclear if Meyer named this snake using the Latin root calamitas (calamity, misfortune, disaster) or calamus (anything made of a reed, such as a pen or arrow). The latter seems more probable given the striped pattern of the type species.
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