Revision of the montane New Guinean skink genus Lobulia (Squamata: Scincidae), with the description of four new genera and nine new species
Author
Slavenko, Alex
Author
Tamar, Karin
Author
Tallowin, Oliver J S
Author
Kraus, Fred
Author
Allison, Allen
Author
Carranza, Salvador
Author
Meiri, Shai
text
Zoological Journal of the Linnean Society
2022
2022-05-01
195
1
220
278
https://academic.oup.com/zoolinnean/article/195/1/220/6365875
journal article
10.1093/zoolinnean/zlab052
0024-4082
6530695
LOBULIA
GREER, 1974
(CLADE I)
(
FIGS 5–15
; SUPPORTING INFORMATION,
FIGS S6–S
7
;
TABLE 1
)
Lobulia
Greer, 1974
.
Australian Journal of Zoology Supplementary Series
(31): 1–67.
Type
species:
Lygosoma elegans
Boulenger, 1897
, by original designation.
Diagnosis:
Medium-sized (adult SVL
41.9–63.9 mm
) terrestrial or semi-arboreal skinks with long limbs (forelimbs 32.9–47.6% of SVL, hindlimbs 41.6– 54.8% of SVL); lobules present on anterior edge of ear opening; two pairs of chin shields in medial contact; two supralabials posterior to subocular supralabial; chin shields abutting infralabials; lower eyelid with semi-transparent window; standard three-scale temporal region; nasal scale undivided; frontoparietals either fused or unfused; viviparous; litter size 1–4.
Lobulia
differs from all other genera by its much longer limbs (forelimbs 32.9–47.6% vs. 27.7–39.8% of SVL, hindlimbs 41.6–54.8% vs. 29.9–49.6% of SVL). It further differs from
Prasinohaema
by lacking green blood serum and tissues (
Greer, 1974
), a prehensile tail with a glandular tip and basally expanded subdigital lamellae. It differs from
Papuascincus
by having two pairs of chin shields in medial contact (vs. one), an undivided (vs. divided) nasal scale and a viviparous (vs. oviparous) reproductive mode.
Figure 5.
Representatives of each of the seven revised genera, not to scale: (A)
Lobulia huonensis
(BPBM 40322); (B)
Prasinohaema flavipes
(BPBM 40369); (C)
Nubeoscincus glacialis
(BPBM 14712); (D)
Papuascincus
lineage VII (BPBM 44749); (E)
Palaia pulchra
(BPBM 38789); (F)
Alpinoscincus alpinus
(BPBM 44218); (G)
Ornithuroscincus pterophilus
(BPBM 45705). Images by Allen Allison.
Species included:
Lobulia brongersmai
Zweifel, 1972
;
Lobulia elegans
(
Boulenger, 1897
)
;
Lobulia lobulus
(
Loveridge, 1945
)
; and new species described below.
Distribution:
Members of
Lobulia
are widespread along most of the montane regions of New
Guinea
, ranging from the central Owen Stanley Mountains in the Papuan Peninsula in the east (
Lo. elegans
) to the Arfak Mountains in the Vogelkop Peninsula in the west. Most species are montane, found at elevations up to
2700 m
a.s.l.; however,
Lo. brongersmai
is found in the lowlands and hill regions of the northern versant of New
Guinea
(
0–1340 m
a.s.l.).
Lobulia brongersmai
is the only member of the genus to be found below elevations of
700 m
, the lowest recorded locality for
Lo. elegans
(
Kraus, 2020
)
.
Remarks:
Molecular evidence suggests that at least two other species not already named or described herein occur in the genus: one in Woitape (BPBM 18689–90; WGS 84:
8.545°S
,
147.251°E
) and one on Mt Yakapi in the Muller Range (BPBM 34161; WGS 84:
5.666°S
,
142.643°E
). However, since both are only known from a few specimens each, and are not extremely morphologically distinct, we refrain from formally describing them until further material can be collected and examined.