Is Crassula fragilis Schonl. a Valid Taxon or Synonymous with C. pubescens Thunb. subsp. Pubescens?

2021 ◽  
Vol 93 (2) ◽  
Author(s):  
Niels HG Jacobsen
Keyword(s):  
Zootaxa ◽  
2021 ◽  
Vol 4990 (1) ◽  
pp. 1-22
Author(s):  
OSCAR ARRIBAS ◽  
KAMİL CANDAN ◽  
YUSUF KUMLUTA ◽  
ÇETİN ILGAZ

All the Turkish populations studied, both those previously assigned to D. dryada (Subaşı and Yoldere villages, near Hopa) and those attributed to D. clarkorum (the largest sample studied so far, 177 specimens in total), are indistinguishable from each other and therefore must all be ascribed to the natural variability of a monotypic D. clarkorum. The Georgian specimens from the Type Locality of D. dryada (Charnaly river gorge, Chevachauri district) are clearly different, so that taxon cannot be considered a simple synonym for D. clarkorum, but as a valid taxon, although its proper status (more probably as a subspecies of D. clarkorum), is yet to be clarified. It is a highly threatened population, so studies should be done in vivo or with as low intrusiveness as possible.                 Darevskia dryada is clearly larger (SVL) than any D. clarkorum studied, with strongly longer heads and pilei in adult males (and hence more teeth in dentary bone), and higher dorsalia counts. There also seem to be (but need to be studied in a larger sample) more longitudinal rows of temporal scales between tympanic and parietal plates, a tendency to have more supralabial scales; comparatively smaller values for longitudinal rows of scales on the ventral surface of the thigh between the femoral pores and the outer row of enlarged scales, and higher collaria, and circumanalia scales. Other differences in femoralia and gularia are also reflected in Darevsky & Tuniyev’s (1997) tables and should also be investigated with more Georgian specimens.                 Two supposed discriminant characters, the frontonasal index and the presence of developed masseteric, are not valid. The frontonasal index does not discriminate both taxa; D dryada specimens fall inside the variation of D. clarkorum for this character. Also the presence of a developed masseteric plate is supposed to be rare if at all in D. clarkorum but always present in D. dryada; however, it appears in nearly 75% of D. clarkorum studied and in all D. dyada, so is also no longer valid for taxa discrimination.                 Although very similar, D. clarkorum and D. dryada are morphologically different, and genetic studies (as the unpublished results mentioned by Fu, 1999) do not make the provenance of the specimens clear, and hence the correct identification of the supposed specimens of D. dryada used.                 There are no geographical clines in D. clarkorum. However, as stated by Schmidtler et al. (2002), there is an inverse relationship between altitude and dorsalia values in D. clarkorum. Both the general differentiation between populations and the scalation (dorsalia) appear statistically correlated with the altitude and also with latitude (being both factors not strictly the same). The correlation seems to be stronger with morphology in general (multiple scalation characters and head biometry) than only with dorsalia. In the case of the general differentiation among samples, it is also significantly correlated with temperatures during the activity period (April-September) and with precipitation during incubation (July-August). As these climatic parameters of temperature and precipitation are not directly correlated with the dorsalia variation, the relation with altitude (and perhaps latitude) must be linked to some other climatic parameter not studied here, perhaps solar radiation or evapotranspiration.  


Zootaxa ◽  
2021 ◽  
Vol 4952 (2) ◽  
pp. 314-330
Author(s):  
MIKHAIL V. MOKROUSOV ◽  
MAXIM YU. PROSHCHALYKIN

New additions to the knowledge of digger wasps (Ampulicidae, Sphecidae, Crabronidae) in Russia are provided. Tachysphex loktionovi Mokrousov & Proshchalykin, sp. nov. is described from Tyva Republic. Five species of digger wasps are reported from Russia for the first time: Hoplammophila clypeata (Mocsáry, 1883) (Sphecidae), Tachysphex desertorum F. Morawitz, 1894, T. mongolicus Kohl, 1898, Tachytes argenteus Gussakovskij, 1933, and Trypoxylon albipes F. Smith, 1856 (Crabronidae). Misidentified Tachysphex speciosissimus Morice, 1897 (=T. gussakovskii Pulawski, 1971) is excluded from the fauna of Russia. Hitherto unknown male of Tachysphex mongolicus Kohl, 1898, stat. resurr. is described and regarded as a valid taxon. New synonymy is proposed for T. mongolicus Kohl, 1898 = T. abditus Kohl, 1898, syn. nov. Diagnosis for male of Dolichurus haemorrhous A. Costa, 1886 is updated. New regional records for seven species are recorded. The known fauna of Russia currently numbers three families, 87 genera and 694 species of digger wasps. In addition Tachytes argenteus Gussakovskij, 1933 is reported for the first time from Uzbekistan and Cyprus, and Trypoxylon beaumonti Antropov, 1991 is newly recorded from Ukraine. 


Zootaxa ◽  
2010 ◽  
Vol 2510 (1) ◽  
pp. 55 ◽  
Author(s):  
EDUARDO SUAREZ-MORALES

Specimens of monstrilloid copepods collected and described in the early 20 th century by G.O. Sars from the coasts of Norway and deposited in the Sars Collection (University of Oslo) were re-examined. Monstrilla leucopis Sars, 1921 was described based on female and male specimens, but the species was later synonymized with M. conjunctiva Giesbrecht, 1902 by several authors. Females of this species were analyzed and compared with closely related congeners, particularly with M. conjunctiva. This analysis includes the description of previously unknown morphological details following upgraded descriptive standards in this group. Evidence was found to support the notion that the female type specimens from Kvalø, Norway represent a distinct species; thus, M. leucopis is redescribed and reinstated as a valid taxon. Previous tropical records of female M. conjunctiva are questionable, but differences with M. leucopis can be found in body and antennule proportions, the structure of the genital spines and fifth legs, and most probably, their geographical ranges. Furthermore, M. leucopis has a modified thick-walled seta on the endopods of legs 2–4, so far a unique character among monstrilloids. The single male specimen labeled as M. leucopis in the Sars Collection was also examined and it is not the male of this species as depicted by G.O. Sars (1921). It is in fact a male of M. longiremis Giesbrecht, 1893, a species for which a short supplementary description and taxonomic comments are also provided herein. The male of M. leucopis also shares some important characters with that of M. conjunctiva, but also with another male specimen that was questionably assigned to the latter species; this male probably represents an undescribed species.


Zootaxa ◽  
2011 ◽  
Vol 3070 (1) ◽  
pp. 15
Author(s):  
MOHAMMAD HAYAT

The aphelinid genus Diaspiniphagus Silvestri is considered a valid taxon, distinct from Coccophagoides Girault. Both genera are briefly diagnosed and the world species are listed. Diaspiniphagus is newly recorded from India and a new species, D. decorus sp. nov., is described. The following species are transferred to Diaspiniphagus as new combinations: D. inlacertus (Girault) from CoccophagusWestwood and D. fasciativentris (Girault), D. forbesi (Dozier), D. fuscipennis (Girault), and D. pulchellus (Dozier) from Prospaltella Ashmead.


Zootaxa ◽  
2008 ◽  
Vol 1866 (1) ◽  
pp. 373 ◽  
Author(s):  
SIMONE N. BRANDÃO

Only a few bairdioid species were reported from the high Antarctic region of the Southern Ocean. One of these species is the supposedly widely distributed Bairdoppilata simplex (Brady, 1880). The re-study of material previously identified as Bairdoppilata simplex (Brady, 1880) indicates that these specimens should be assigned to several different species. On the basis of the specimens studied herein and of published illustrations it is possible to conclude that more than ten species are represented in the material that has been misidentified under this name, seven of these species were re-studied and are illustrated herein. One of them, Bairdoppilata labiata (Müller, 1908), previously considered a junior synonym of B. simplex, is herein considered a valid taxon and its lectotype is designated. Additionally, in the present publication 82 bairdioid live specimens and 585 valves collected from depths of 1123 to 4932m during the ANDEEP Project in the Atlantic Sector of the Southern Ocean were studied. Seven new species are described—?Neonesidea keyseri sp. nov., Bythocypris praerenis sp. nov., Bythocypris malyutinae sp. nov., Bythocypris polarsterni sp. nov., Bythocypris richarddinglei sp. nov., Bythocypris weddellensis sp. nov., Bythopussella brandtae sp. nov. A new combination is suggested to the bathyal species Bythopussella microguttata (Whatley et al., 1998b) n. comb. (previously described in the genus Bairdoppilata). Statistical analyses (MDS, ANOSIM, BEST_BIOENV, and Cluster) show clear relationships among the bairdioid assemblages and the depth and geographical locality where samples were collected.


2004 ◽  
Vol 4 (2) ◽  
pp. 1-10 ◽  
Author(s):  
Ariovaldo Antonio Giaretta ◽  
Kátia Gomes Facure

Thoropa species are distributed in southern and southeastern Brazil and have semiterrestrial tadpoles on rocky environments. Herein, we provide further data on reproduction, paternal care and tadpole cannibalism in T. miliaris. Guarding males were tested for disturbances in their egg masses. Egg masses were laid in stripes of wet rock; eggs were in a single layer and were adhered to the rock surface, roots, and to one another. The tadpoles hatched between four and six days. The egg number in two egg masses was 750 and 1190; eggs were gray and the yolk were about 1.7 mm in diameter; 2.3 mm with the jelly capsule. Aggressive interactions were observed between males. Males remained with their egg masses during the night and reacted aggressively to the experimental disturbances. Late stage tadpoles were found cannibalizing eggs. An egg mass in a recently formed wet stripe died from drought. The strips of wet rock are the only places where eggs and tadpoles can develop and represent a limiting factor for reproduction because they occur in short supply. For the females, the selection of newly formed wet strips may represent a trade-off between the advantages of using places free of cannibalistic and/or competitive tadpoles and the risks of losing offspring by drought. Our results do not support Cycloramphinae as a valid taxon, indicating that the morphological and behavioral similarities between Thoropa and Cycloramphus species should be interpreted as convergence.


1982 ◽  
Vol 60 (9) ◽  
pp. 2235-2238 ◽  
Author(s):  
Michael D. Rigby ◽  
William Threlfall

Adult muskrats (Ondatra zibethicus) from Newfoundland (N = 44) and New Brunswick (N = 21) were measured and data obtained were analyzed using multivariate techniques. On the basis of skull measurements it was possible to accurately predict (P < 0.01) the site of origin of individual animals. Size differences were related to the availability of preferred foodstuffs. Ondatra zibethicus obscurus is considered a valid taxon for the Newfoundland muskrat.


1999 ◽  
Vol 12 (1) ◽  
pp. 109 ◽  
Author(s):  
M. Lenz ◽  
M.J. Priest

In Australia, two species of Podaxis are recognised based on spore morphology. The species occurring on soil is recognised as P. pistillaris (L. : Pers.) Fr. and the name P. beringamensis sp. nov. is proposed for a new species occuring on termite mounds in Australia. Podaxis carcinomalis (L.f. : Pers.) Fr. is considered a valid taxon from studies of the type collection. Brief notes on other termite mound inhabiting species are given.


1991 ◽  
Vol 22 (3) ◽  
pp. 365-367 ◽  
Author(s):  
Knut Rognes
Keyword(s):  

AbstractThe four nominal species of Pollenia Robineau-Desvoidy described by Camillo Rondani are revised. Lectotypes are designated and a synopsis of all names treated is provided. Pollenia paupera Rondani, 1862 is established as the valid name for Pollenia longitheca Rognes, 1987 (syn. n.). Pollenia ruficrura Rondani, 1862 (stat. rev.) is reestablished as a valid taxon.


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