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Osteology of Darevskia Defilippi FINAL_SHORT_NOTE_VERSION_Jablonsky_etal_European_Turkey_grafiklayout_jablonsky1.qxd 10.07.2012 14:41 Seite 14 72 ShorT noTE hErPETozoa 25 (1/2) Wien, 30. Juli 2012 ShorT noTE osteology of Darevskia defilippi of Biolo gy, Faculty of Science, razi uni - (caMErano , 1877) raises doubts: versity, kermanshah, iran) collected from lar valley (Tehran province, iran), about is it really a close relative of 3000 m a.s.l. in June 2002. Small samples Darevskia raddei (B oETTGEr , 1892) ? are sufficient to reveal qualitative traits rep - resentative of the majority of the population, Darevskia defilippi is a poorly studied even if any of the vouchers displayed a species ( ŠčErBak 2003). it was described deviant character state. as Podarcis defilippi by caMErano (1877), The previously ethanol fixed and pre - on the basis of specimens regarded as La - served specimens were cleared by means of certa muralis by DE FiliPPi (1865 ). in the 1% koh in deionized water. Bones were following years it was considered a variety stained with alizarin red and thereafter dif - of the common Wall lizard ( L. muralis var. ferentiated and freed from excess pigment defilippi ) by authors such as BoETTGEr with Mall solution (80% of the previous (1886), BEDriaGa (1886 - L. muralis var. clearing solution plus 20% of pure Glycerol) persica , a synonym) and BoulEnGEr (1904, for three months, and preserved permanent - 1913, 1920). contemporary to this latter, ly in glycerol following procedures by MEhEly (1909) included it in Lacerta saxi - Taylor (1967) and DurForT (1978). osteo - cola EvErSMann , 1834 , as L. saxicola var. logical terminology is as in arriBaS (1998). defilippi , an opinion also adopted by lanTz The following osteological characteristics of & c yrén (1936), and maintained during a D. defilippi are presented: good part of the 20th century, even in Skull: Seven (in two specimens) or DarEvSky ’s (1967) seminal work about the six (in one) teeth (average 6.66) on the azy - caucasian lizards, where species such as L. gous premaxillary. Processus nasalis slen - rudis (BEDriaGa , 1886), L. caucasica (Mé- der. number of teeth on maxillary (counts hEly , 1909), and the four known partheno - per side and individual, sorted by size): 13, genetic taxa were split from the collective 15, 15, 16, 16, 17 (average 15.33). number taxon L. saxicola . With the progressive dis - of teeth on dentary: 19, 20, 20, 20, 20, 20 aggregation of Lacerta saxicola , defilippi (average 19.83). Maxillojugal suture was regarded as a subspecies of Lacerta smooth, not stepped. Postfrontal and post - raddei (B oETTGEr , 1892) by Bannikov et orbitary bones separated, with anterodistal al. (1977). The first to consider Lacerta process of the postfrontal and anteromedial defilippi as a full species again, apart from process of the postorbitary present. Post - WElch (1983) in a mere checklist, were frontal and postorbitary subequal (in one DarEvSky et al. (1984). This and the other specimen: postorbitary a bit longer than species corresponding to the Lacerta saxi - postfrontal; in two specimens: the reverse cola group were later included in the genus situation). Squamosal bone overlaps with Darevskia (arriBaS 1997, 1999; a rnolD et postorbitary one third the length of the lat - al. 2007). MéhEly (1909) supposedly pro - ter. Supraocular lamellae partially reduced vided osteological data about Lacerta saxi - and strongly fenestrated. cola var. defilippi , but in fact all the locali - vertebral column: Sexual dimor - ties from which bones were studied in this phism in the number of presacral vertebrae paper (Tativ, Shusha and njuwadi) refer to is universal in lacertini where they add up record localities of Darevskia raddei , not D. to 27 in male and 28-29 in female Da - defilippi . revskia . Since the present D. defilippi sam - in the present note, the author submits ple includes males only, sexual dimorphism the first osteological data of Darevskia de - was not addressed. For these male speci - filippi and compares it with information on mens, the usual number of 27 presacral ver - other studied species of Darevskia (most tebrae includes 6 posterior presacral verte - comparative data in arriBaS 1998). The brae with short dorsal ribs. The third (cer - studied material comprised three males of D. vical) vertebra is not associated with ossi - defilippi (razi university collection num - fied ribs; sternal costal formula: (3+2). a- bers ll40.4, ll40.5, ll40.7) donated by Type of preautotomic caudal vertebrae is nasrullah raSTEGar -Pouyani (Department present ( arnolD et al. 2007). FINAL_SHORT_NOTE_VERSION_Jablonsky_etal_European_Turkey_grafiklayout_jablonsky1.qxd 10.07.2012 14:41 Seite 15 ShorT noTE hErPETozoa 25 (1/2) Wien, 30. Juli 2012 ShorT noTE 73 Pectoral girdle: Medial loop of increase in number of presacral vertebrae), clavicle interrupted posteriorly (“clavicles but we cannot be sure about its relationship open”); sternal fontanel oval (sometimes and the true relations within the genus. slightly distorted); interclavicle with the lat - The number of premaxillary teeth eral branches slightly directed forward. (seven in D. defilippi ) seems to exclude its in the past, D. defilippi was confused close relationship with D. chlorogaster with D. raddei (i. e. MEhEly 1909), and in (B oulEn GEr , 1908) (nine teeth), which also the first approaches to the phylogeny of the is iranian. however, just like the D. defilip - group by DarEvSky (1967; fig 84) it was pi specimens studied, D. chlorogaster has considered next to this species (concretely slightly forward directed lateral interclavic - to L. saxicola nairensis DarEvSky , 1967, ular branches, a character state of variable now Darevskia raddei nairensis ). To date, degree in other species ( arriBaS 1997, the iranian lizard D. defilippi is classified a 1998, 1999). Thus, the closer relationship close relative of D. raddei . be tween defilippi and chlorogaster cannot however, despite extensive genetic be fully discarded. none of these two studies of the genus Darevskia by several species has been included in the extensive authors (both electrophoresis and mitochon - genetic studies of the genus. From the rela - drial Dna; see e. g., Fu et al. 1997 and tionships traced in arnolD et. al (2007), D. MurPhy et al . 2000 ), D. defilippi was not chlorogaster may pertain to the “ caucasica included in any of these analyses and by group”. another species, Darevskia (?) this, its position yet remains uncertain. steineri (E i SElT , 1995) , also from iran, is Darevskia raddei is considered a basal only known from its original description. form within the so-called “ caucasica group” Geographically close, but allopatric, (MurPhy et al. 2000), but although being D. raddei have an increased number of ver - monospecific (the internal relationships are tebrae, as said above, and a green belly, both complex and still uncertain), it was preferen - characteristics being well different from D. tially treated as a group of its own in the past defilippi with its vivid brick-red venter. Da - (arriBaS 1997, 1999 ). its studied members revskia valentini (B oETTGEr , 1892) of the [D. raddei raddei , D. r. nairensis and D. r. “rudis group” has a greenish belly (not red), vanensis (EiSElT , S chMiDTlEr & D arEWSky , a single and enlarged scale in the semicircle 1993)] shared a derived osteological charac - of preanal scales (usually two, not enlarged ter, the increased modal number of vertebrae in D. defilippi ) and more or less keeled in both males and females. This increase in scales in the thighs (small and unkeeled in number relative to other Darevskia seems D. defilippi ), and thus, is also an improper also to be present in D. clarkorum (DarEv- candidate for parentship. Sky & v EDMEDErJa , 1977), another member in fact, only one Darevskia shares with of the “ caucasica group” ( arriBaS 1998). D. defilippi the brick-red colored belly: The osteological characteristics of D. Darevskia parvula (lanTz & c yrén , 1913). defilippi are largely in agreement with most Thus, its relationship to D. defilippi would other Darevskia species; it shares with them merit to be studied in depth. Darevskia the increased number of presacral vertebrae, parvula of the “ rudis group” lives in the characteristic of this genus (27 in males and other (western) side of the caucasian 28 or more in females; usually one or two isthmus, and if related to D. defilippi , would more than in other lacertini genera). By illustrate a perfect areal disjunction between this, its allocation in Darevskia seems justi - colchic and hyrcanian (Talysh) refuges. fied despite the lack of genetic studies and osteologically, both share a lot of primitive the extreme morphological similarity characters, but these are widespread, and do among lizard genera. not say anything about their true relationship. however, D. defilippi lacks the “sec - another species, D. portschinskii ond increase” in the modal number of verte - (k ESSlEr , 1878), also of the rudis group”, brae, the one that characterizes the “ raddei can have brigth-yellow or yellowish-orange group” within Darevskia . Darevskia defil - bellies ( DarEvSky 1967), far from the ippi might be basal to these D. raddei taxa brick-red of the abovementioned species. and lack their autapomorphy (i. e., second Darevskia portschinskii occupies a geo - FINAL_SHORT_NOTE_VERSION_Jablonsky_etal_European_Turkey_grafiklayout_jablonsky1.qxd 10.07.2012 14:41 Seite 16 74 ShorT noTE hErPETozoa 25 (1/2) Wien, 30. Juli 2012 ShorT noTE graphically intermediate area in the cau -
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