Plestiodon skiltonianus BAIRD & GIRARD, 1852
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Higher Taxa | Scincidae, Scincinae, Scincoidea, Sauria, Squamata (lizards) |
Subspecies | Plestiodon skiltonianus interparietalis (TANNER 1958) Plestiodon skiltonianus skiltonianus BAIRD & GIRARD 1852 Plestiodon skiltonianus utahensis (TANNER 1958) Plestiodon skiltonianus brevipes COPE 1900 |
Common Names | E: Coronado Island Skink [interparietalis] E: Western Skink [skiltonianus] E: Great Basin Skink [utahensis] S: Lincer Occidental |
Synonym | Plestiodon skiltonianum BAIRD & GIRARD 1852 Eumeces skiltonianus — COPE 1875: 45 Eumeces hallowellii BOCOURT 1879: 435 (fide TAYLOR 1935) Eumeces skiltonianus amblygrammus COPE 1900: 643 Eumeces skiltonianus skiltonianus — TAYLOR 1936: 415 Eumeces skiltonianus — STOKELY 1947 Eumeces skiltonianus — SMITH & TAYLOR 1950: 167 Eumeces skiltonianus — STEBBINS 1985: 148 Eumeces skiltonianus — LINER 1994 Eumeces skiltonianus — GRISMER 1996 Eumeces skiltonianus — GRIFFITH, NGO & MURPHY 2000 Plestiodon skiltonianus — SCHMITZ et al. 2004 Plestiodon skiltonianus brevipes (COPE 1900) (see comment) Eumeces skiltonianus var. brevipes COPE 1900 Eumeces skiltonianus brevipes — TAYLOR 1936: 428 Plestiodon skiltonianus interparietalis (TANNER 1958) Eumeces skiltonianus interparietalis TANNER 1958: 73 Plestiodon skiltonianus interparietalis — COLLINS & TAGGART 2009 Eumeces skiltonianus interparietalis — BARTS 2018 Plestiodon skiltonianus skiltonianus BAIRD & GIRARD 1852 Plestiodon skiltonianum BAIRD & GIRARD 1852 Plestiodon skiltonianus skiltonianus — COLLINS & TAGGART 2009 Plestiodon skiltonianus utahensis (TANNER 1958) Eumeces skiltonianus utahensis TANNER 1957: 67 Plestiodon skiltonianus utahensis — COLLINS & TAGGART 2009 |
Distribution | Canada (S British Columbia) USA (Washington, Oregon, Idaho, California, Nevada, Arizona, Montana, Utah), Mexico (N Baja California, Los Coronados Islands, Todos Santos Islands, Ensenada, San José, Rancho San José, Alcatraz, San Pedro Mártir Mountains, Arroyo Encantada, San Quintín) Type locality: Oregon. Restricted to “The Dalles” by SMITH & TAYLOR 1950. interparietalis: Coronado Island, Baja California; Type locality: “South Coronado Island, Baja Californiam Mexico” skiltonianus: Oregon etc. utahensis: Utah; Type locality: “souheastern edge of Cedar Valley, approximately half mile directly west of Chimney Rock, Utah County, Utah” |
Reproduction | oviparous |
Types | Lectotype: USNM 3172 a (smaller of the two syntypes under 3172). Designation by Taylor (1936). Holotype: USNM 12558 [brevipes] Holotype: CAS 13576 [interparietalis] Holotype: ZMB 6610 [hallowellii] Holotype: BYU 6945 [utahensis] |
Diagnosis | Definition and Diagnosis: A medium-sized North American skink (adults to 83 mm SVL) characterized by: dorsal scales equal in size or nearly so; lateral body scales in parallel rows; four longitudinal light stripes extending from the head and usually onto the tail; dorsolateral light stripes beginning on the supralabials, passing through the upper part of the ear, and involving the second and third lateral scaler ows on neck. Stripe susually remain distinct in adults. There are normally 26 scale rows, occasionally 24 or 28. There are 7-8 supralabials, 6 infralabials, 2 postmentals and 1 postnasal. (Tanner 1988) |
Comment | Distribution and synonymy after SMITH & TAYLOR 1950. Subspecies: brevipes is probably a synonym of skiltonianus. It was diagnosed by TAYLOR 1936 as follows: “Related to skiltonianus skiltonianus, but larger and more robust, the body proportionally more elongate, the scales having a more glassy appearance. The tail is lavender, a color retained more or less in the adults.”, Rodgers and Fitch (1947) proposed that P. skiltonianus brevipes is a synonym of P. gilberti gilberti. Crother et al. 2017 do not list brevipes as valid subspecies. Phylogenetics: Richmond and Reeder (2002) presented mitochondrial DNA evidence that P. s. skiltonianus is paraphyletic with respect to both P. s. interparietalis and P. s. utahensis as well as to the species P. lagunensis (Baja California) and to two of the three lineages of P. gilberti. |
Etymology | Named after Dr. Avery J. Skilton, American naturalist who sent specimens to Baird and Girard. |
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