Brachymeles tiboliorum SILER, JONES, DIESMOS, DIESMOS & BROWN, 2012
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Brachymeles tiboliorum
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| Higher Taxa | Scincidae, Scincinae, Scincoidea, Sauria, Squamata (lizards) |
| Subspecies | |
| Common Names | E: Western Mindanao Slender Skink. |
| Synonym | Brachymeles tiboliorum SILER, JONES, DIESMOS, DIESMOS & BROWN 2012 |
| Distribution | Philippines (W Mindanao) Type locality: under a rotting log in secondary-growth forest, in Barangay Tablu, Municipal- ity of Tampakan, South Cotabato Province, Mindanao Island, Philippines |
| Reproduction | viviparous (phylogenetic imputation, fide Zimin et al. 2022) |
| Types | Holotype: PNM 9777 (ACD Field no. 5747), adult female, collected by ACD and J. Fernandez, (1000 hr to 1230 hr) on 23 October 2009. Paratopotype.—One subadult male (PNM 9776) collected on 21 October 2009 by ACD and J. Fernandez. Paratype.—One juvenile of undetermined sex (KU 326109) collected on 24 May 2001, in Initao National Park, Barangay Initao, Munic- ipality of Tubigan, Misamis Oriental Province, Mindanao Island, Philippines (08u5092.40N, 123u529300E; WGS-84), by ACD. |
| Diagnosis | Diagnosis: Brachymeles tiboliorum can be distinguished from congeners by the following combination of characters: (1) body size medium (SVL 61.6, 75.5 mm); (2) limbs pentadactyl; (3) limb length moderate; (4) relative tail length moderate; (5) Finger-III lamellae four or five; (6) Toe-IV lamellae six; (7) supralabials six; (8) infralabials six; (9) supraciliaries six; (10) supraoculars five; (11) midbody scale rows 26; (12) axilla–groin scale rows 46–47; (13) paravertebral scale rows 68– 70; (14) supranasals separate; (15) frontopar- ietals in contact; (16) parietals in contact; (17) postnasal/supranasal fusion absent; (18) en- larged chin shields in three pairs; (19) nuchal scales undifferentiated; (20) fourth and fifth supralabial below eye; (21) auricular opening present; and (22) presacral vertebrae 33 (Tables 3, 4 in Siler et al. 2012). |
| Comment | Habitat: primary- and secondary- growth forest. Sympatry: throughout its currently recognized range with B. schadenbergi. The population found in South Cotabato Province, Mindanao Island (Fig. 2), also has been documented to occur in sympatry with B. gracilis. As previously mentioned, this is the first documented case of two species of Brachymeles in the same body form and body size class occurring in sympatry. In addition to B. gracilis and B. schadenbergi, four other species of Brachy- meles occur on Mindanao Island (B. hilong, B. orientalis, and B. pathfinderi). Other sympatric sincid species observed on Mindanao Island include Eutropis indeprensa, E. multicarinata, E. multifasciata, E. englei, Lamprolepis smaragdina, L. pulchella, L. quadrivittata, Otosaurus cumingi, Parvoscin- cus steerei, Pinoyscincus abdictus abdictus, P. coxi, P. jagori, P. llanosi, P. cf. mindanensis, Sphenomorphus acutus, S. fasciatus, S. varie- gatus, Tropidophorus misaminus, T. partelloi (Siler et al. 2012). |
| Etymology | We are pleased to name this distinctive new species with a patronym, honoring the indigenous T’boli peoples from South Mindanao Island. The T’boli possess ancestral tribal domains from Buluan Lake in the Cotabato Basin to Agusan del Norte Province in northeastern Mindanao Island, encompassing much of the known distribution of this new species. |
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