Hoogenraadia (Gauthier-Lievre and Thomas, 1958)

Bobrov, Anatoly, Qin, Yangmin & Wilkinson, David M., 2015, Latitudinal Diversity Gradients in Free-living Microorganisms - Hoogenraadia a Key Genus in Testate Amoebae Biogeography, Acta Protozoologica 54 (1), pp. 1-8 : 2

publication ID

https://doi.org/ 10.4467/16890027AP.15.001.2188

DOI

https://doi.org/10.5281/zenodo.8377596

persistent identifier

https://treatment.plazi.org/id/2C79AE18-FFB6-FFF1-F16E-FD939F580CB2

treatment provided by

Felipe

scientific name

Hoogenraadia
status

 

Records of Hoogenraadia View in CoL in China

There were two extant Hoogenraadia taxa previously recorded in China, H. cryptostoma and H. asiatica to which can be added our new record of an additional species of uncertain identity ( Shen 1983, Wang and Min 1987, Qin et al. 2011). In addition, the fossil H. asiatica was found in the sediments from late Pleistocene and Holocene ( Wang and Min 1987). The limited nature of testate amoebae records from modern China make impossible to be sure if this species still exists or if it has become extinct.

The testate species illustrated in Fig. 1 View Fig is common in the soils of Shennongjia Mountains, and it is especially abundant in the soils near the Dajiuhu peatland. The occurrence of this species was briefly noted and illustrated in Qin et al. (2011) under the name Planhoogenraadia africana – here we provide full details of this finding. The size of the specimens are as follows (N = 17): shell length 115–155 µm, shell width 50–65 µm which is mid-range in size for this genus.This was identified as Planhoogenraadia africana by Qin et al. (2011) – who also implied that the genera Planhoogenraadia and Hoogenraadia may be synonymous. However, because of the shape of the ventral apature (compare with Fig. 2c View Fig ) we do not believe this taxon to be Hoogenraadia africana but tentatively assign it to c.f. Hoogenraadia humicola .

These new records clearly illustrate the current difficulties in assigning some specimens to an unambiguous morpho-species and suggest that there is more to learn about the occurrence of this genus in China and further work is obviously required. Molecular data would obviously be very useful in sorting out the current uncertainties about the status of these morphospecies.

Kingdom

Protozoa

Phylum

Amoebozoa

Class

Lobosa

Order

Arcellinida

Family

Plagiopyxidae

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