Leiopython albertisii (PETERS & DORIA, 1878)
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Leiopython albertisii
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| Higher Taxa | Pythonidae, Henophidia, Pythonoidea, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: D’Albertis python, Northern White-lipped Python G: Weißlippen-Python E: Huon Peninsula whitelip python [huonensis] |
| Synonym | Liasis albertisii PETERS & DORIA 1878 Leiopython gracilis HUBRECHT 1879 Liasis albertisii — BOULENGER 1893: 80 Liasis albertisi — DE ROOIJ 1917: 18 Leiopython albertisii — KLUGE 1993 Morelia albertisii — UNDERWOOD & STIMSON 1990: 602 Liasis fuscus albertisii — STULL 1935: 390 Liasis fuscus albertisi — CAPOCACCIA 1961 Bothrochilus albertisii — COGGER et al. 1983 Liasis albertisi — TRUTNAU 1984 Leiopython albertisii — MCDIARMID, CAMPBELL & TOURÉ 1999: 166 Leiopython albertisii — COGGER 2000: 605 Leiopython albertisii barkeri HOSER 2000 (nomen nudum fide SCHLEIP 2008) Bothrochilus albertisii — RAWLINGS et al. 2008 Leiopython biakensis SCHLEIP 2008: 661 Leiopython huonensis SCHLEIP 2008: 660 Leiopython albertisi barkerorum — HOSER 2009 Leiopython albertisii — SCHLEIP & O’SHEA 2010 Bothrochilus albertisii — REYNOLDS et al. 2014 Bothrochilus biakensis — REYNOLDS et al. 2014 Bothrochilus huonensis — REYNOLDS et al. 2014 Leiopython albertisii — WALLACH et al. 2014: 365 Leiopython biakensis — WALLACH et al. 2014: 366 Leiopython huonensis — WALLACH et al. 2014: 366 Leiopython biakensis — BARKER et al. 2015 Leiopython huonensis — BARKER et al. 2015 Leiopython albertisii — BARKER et al. 2015 Leiopython albertisii — COGGER 2014: 821 Liasis albertisii — KUNZ 2017 Leiopython albertisii — NATUSCH et al. 2020 Leiopython albertisii — ESQUERRÉ et al. 2020 |
| Distribution | Papua New Guinea (Bismarck Archipelago, Normanby Island [M. Lagerqvist, pers. comm.]; Milne Bay Province: S end Sewa Bay, 10.03858°S, 150.97345°E, 54 m elevation; Northern Province: SW slope Mt. Trafalgar, 9.2238°S, 149.1561°E, 187 m elevation [Kraus 2013]), Australia (northern islands of Torres Strait), Indonesia (Salawati, Biak, New Guinea: Irian Jaya) Type locality: “Kapaor fra i Papua Onin” [Onin Peninsula, Irian Jaya, Indonesia], “near Andai” and “near Andai and Kapaor” fide KLUGE (1993). biakensis: Indonesia (Biak Island); Type locality: Biak, Schouten Islands huonensis: Papua New Guinea; Type locality: about 16 km west of Lae |
| Reproduction | oviparous |
| Types | Syntypes: MSNG 29989, Guinea, collected by O. Beccari, 1875; MSNG 29890, Kapaor, Onin Peninsula, New Guinea, collected by L.M. d'Albertis, 1872. Holotype: RMNH 10193, female, Museum of Natural History, Leiden, The Netherlands, 1952–1953, donated by Fleet Air Arm Royal Netherlands Navy. Holotype lost in 2013 fide Esther Dondorp, pers. comm. 28 Jan 2019, but paratype RMNH RENA.10194 still extant) [biakensis] Holotype: AMNH 95535, adult female, collected by L. van Royen in 1964. Labeled: ‘‘Gift to H. M. van Deusen’’; SVL 940 mm; tail 155 mm; head 37 mm [huonensis] |
| Diagnosis | Diagnosis: Leiopython albertisii is distinguishable from Leiopython hoserae, Leiopython bennettorum, and Leiopython huonensis sp. nov. by the presence of two pairs of parietals. A pair of large scales often separated from the median line by one or more small interparietal follows the anterior pair (Fig. 2A). It further differs from the former two species and from Leiopython fredparkeri sp. nov. by the presence of whitish postocular spots, and can easily be distinguished from Leiopython bennettorum in the number of loreals and prefrontals (Table 3), the average number of postoculars), dorsal midbody rows, ventrals, and subcaudal scales. Leiopython albertisii further differs from Leiopython hoserae and from Leiopython fredparkeri in lighter dorsal color and in having a yellowish flank (Parker, 1982; Barker and Barker, 1994; O’Shea, 1996, 2007), smaller average body size in hatchlings and adults, and additionally from Leiopython hoserae by molecular evidence (see Fig. 4). Leiopython albertisii can be distinguished from Leiopython biakensis sp. nov. by higher average subcaudal (71.5 +/- 2.85; range = 65–79, N = 30 vs. 67.5 +/3.54; range = 65–70, N = 2), and supralabial scale counts (12.9 +/- 0.28; range = 12–13, N = 30 vs. 11.8 +/- 0.35; range = 11–12, N = 2) along with a higher number of supralabials entering the eye (3.0 +/- 0.18; range = 2–3, N = 30 vs. 2, N = 2) [SCHLEIP 2008]. |
| Comment | Synonymy: HOSER (2000) described several new subspecies of Leiopython albertisii and a new species, Leiopython hoserae. However, due to their vague description we list them as synonyms of Leiopython albertisii. For example, Leiopython albertisii barkeri is diagnosed as “separated from L. albertisii albertisii by the mutually exclusive distribution and by analysis of mitochondrial DNA [of which no data is provided]. Ventral counts for this species are near the lower limit for the range for New Guinea L. albertisii.” L. a. bennetti is described as follows: “Essentially similar in most respects to L. albertisii albertisii from which it can usually be differentiated by its higher loreal count. L. albertisii albertisii usually has a single loreal in broad contact with the prefrontal. The three specimens listed above are typical for their subspecies in that they have two or three loreals on each side. Specimens of L. albertisii albertisii usually have a single pair of elongated prefrontal scutes with their median suture three or more times as long as the suture between the internasals. However in L. albertsis bennetti it is not unusual for there to be a pair of small lateral prefrontals, broadly separated from each other by the median prefrontals but in contact with the frontal posteriorly and with the more posterior loreal anteriorly”. Natusch et al. 2020 synonymized Leiopython biakensis and L. huonensis with L. albertisii (without even mentioning their relationship to Bothrochilus). In Hoser's (2000a) python paper, the name barkeri requires emendation to barkerorum, and bennetti to bennettorum, as the subspecies were each named after two people (WÜSTER et al. 2001). Type species: Leiopython gracilis HUBRECHT 1879 is the type species of the genus Leiopython HUBRECHT 1879. |
| Etymology | named in honor of Italian naturalist Luigi Maria D’Albertis, who made a name for himself in New Guinea. L. biakensis was named after the type locality. L. huonensis was named after the locality where this species is found, the Huon Peninsula at the east coast of PNG. |
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