Macrobiotus areolatus Murray 1907, Murray, 1907

Guil, Noemí, 2008, New records and within-species variability of Iberian tardigrades (Tardigrada), with comments on the species from the Echiniscus blumi-canadensis series, Zootaxa 1757, pp. 1-30: 19

publication ID

http://doi.org/ 10.5281/zenodo.181845

DOI

http://doi.org/10.5281/zenodo.5626390

persistent identifier

http://treatment.plazi.org/id/038A87C1-3D4C-FF86-FF68-9B0CFC21FF41

treatment provided by

Plazi

scientific name

Macrobiotus areolatus Murray 1907
status

 

Macrobiotus areolatus Murray 1907  

The 29 specimens examined had visible buccal armature (several rows of small teeth at the anterior band, one row of triangular-shaped teeth at the posterior band, and a transversal crest system composed of three ventral and three dorsal), more or less visible depending on the position of the specimen. Three rod-shaped macroplacoids were present, third macroplacoid longest, and second macroplacoid shortest. Microplacoid, when present, was very small. Besides, we detected lunules with smooth and irregular margins (maybe very small teeth); one of the samples contained specimens with the two types of lunules. I have observed ocular spots in 20 specimens. I counted between 12 and 21 processes per hemisphere from the 23 eggs examined and 9 or 10 polygonal areas around each process. Body size range was 440 to 1188 μm, mean 745 μm (SD 141). The species is considered cosmopolitan ( McInnes 1994). In the Iberian Peninsula, it has been recorded for Spain ( Rodríguez Roda 1952; Maucci & Durante Pasa 1984) and Portugal ( Da Cunha 1941; Fontoura 1982; Maucci & Durante Pasa 1984, 1985). This is the first time it is found for Madrid ( Table 2 View TABLE 2 ). Macrobiotus areolatus   appeared at four sampling points (Table 3) in LF and MR samples.