Paramacrobiotus alekseevi ( Tumanov, 2005 )

Stec, Daniel, Dudziak, Magdalena & Michalczyk, Łukasz, 2020, Fig. 4 in Fig. 22 in Paralbunea dayriti, Zoological Studies (Zool. Stud.) 59 (23), pp. 1-25 : 15

Paramacrobiotus alekseevi ( Tumanov, 2005)

Material examined: Two slides (TH.001.01 and TH.001.02) with 1 paratype and 6 eggs from the type series mounted in Faure medium (these slides are now deposited at the Institute of Zoology and Biomedical Research, Jagiellonian University, Gronostajowa 9, 30- 387, Kraków, Poland). PCM photomicrographs of the holotype and another paratype as well as two eggs from the type series.

Amended description of the species: According to the original description, the granulation is absent on the first three pairs of legs and lunules IV are faintly dentate. However, our re-examination of the type material revealed the presence of faint granulation present on the external surface of legs I–III in larger animals ( Fig. 14A ) whereas in smaller specimens the granulation can be hardly or even not visible. Moreover, we found that lunules on all the legs are smooth ( Fig. 14A–B ). The original description also states that indistinct reticular sculpture is present within the areolae. We confirmed that the areolae surface is sculptured, however only wrinkles are present whereas reticulation or pores are absent or not visible under PCM ( Fig. 14C–D ). We also confirmed multiple divisions of the medio-ventral tooth in the third band of teeth into several roundish teeth ( Fig. 14E–F ) and the absence or invisibility of the body granulation under PCM.

Figures

Fig. 14. Paramacrobiotus alekseevi (Tumanov, 2005), details of animals and egg chorion morphology (PCM). A–B, granulation and claws on legs III (A, holotype) and IV (B, holotype); C–D, egg surface under 1000× magnification; E–F, ventral view on the oral cavity armature (E – holotype, F – paratype). Empty flat and indented arrowheads indicate granulation on leg III and IV, respectively, filled flat arrowheads indicate sculptures areoles without pores, filled indented arrowheads indicate subdivided medio-ventral tooth of the third band of teeth. Scale bars in μm.