Tardigrades of North Carolina
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View PDFMacrobiotidae Members: 1 NC Records

Minibiotus lazzaroi (Maucci, 1986) - No Common Name


Habitus, DIC
Taxonomy
Class: EutardigradaOrder: Parachela Family: Macrobiotidae Checklist Number: 1865.0 Synonym: Macrobiotus lazzaroi (Bartels et al 2021), Macrobiotus spallanzanii Maucci, 1973
Taxonomic Comments: Redescribed by Kathman 1990. Transferred from Macrobiotus by Stec et al. 2021.
Species Notes: Terrestrial. Recorded from Canada and in the US only in the Smokies.
Identification
Online resources:Online Photographs: Google, GBIF                                                                                 
Species Description: Length up to 420 µm; slightly yellow in color; posterior eyes present. Dorsal surface with 9 transverse bands or rows of large pores, mostly triangular or polygonal, but a few rounded; rows 4, 6, and 8 narrower than other rows; these pores are also present on the dorsal surface of all legs; pore size approximately 2 µm; slightly larger caudally. Ventral surface with small elliptical or round pores, sparse and irregularly spaced. Ten buccal lamellae present. Buccal tube short (mean length 36 µm) and somewhat narrow (mean width 2.2 µm); mean width to length ratio 6.2%. Pharyngeal bulb round, often slightly wider than long; apophyses; 3 macroplacoids, the first 2 rounded and the 3rd slightly elongated (mean lengths (in micrometers): 1st, 2.8; 2nd, 2.8; 3rd, 3.4); microplacoid present, small. Claws Y-shaped, large; 2 accessory points large and obvious on each primary branch; lunules small and smooth, sometimes very slightly dentate on leg IV but difficult to discern.
-Kathman 1990
Body Length: Up to 420 microns.
Key Characters: Large polygonal pores dorsally and small pores ventrally. Three macroplacoids 1st and second roundish, third elongate (length 1=2<3), and microplacoid. Small lunules sometimes slightly dentate on IV. Differs from M. jonesorum by presence of microplacoid, larger anterior dorsal pores, dentate lunules and ventral pores.
Key Character Images
ID Requirements: Identifiable only by close inspection of key characters or by DNA analysis.
Distribution in North Carolina
Distribution:
County Map: Clicking on a county returns the records for the species in that county.
Dates:
 High Mountains (HM) ≥ 4,000 ft.
 Low Mountains (LM) < 4,000 ft.
 Piedmont (Pd)
 Coastal Plain (CP)

Click on graph to enlarge
Habitats and Life History
Habitats: Tree lichen. Less commonly tree moss rarely in streams.
Abundance: Rare. This species makes up 0.14% of terrestrial specimens collected in the Great Smoky Mountains National Park in Bartels' inventory.
Diet: Herbivorous.
Reproduction: Ornamented eggs deposited externally.
Observation Methods: DIC and PC.
Wikipedia

 Photo Gallery for Minibiotus lazzaroi - No common name

Photos: 7

Recorded by: Bartels on 2001-07-20
Swain Co.
Comment: Habitus, DIC		Recorded by: Bartels on 2001-07-20
Swain Co.
Comment: Anterior, DIC
Recorded by: Bartels on 2001-07-20
Swain Co.
Comment: Habitus, DIC		Recorded by: Bartels on 2001-07-20
Swain Co.
Comment: Anterior, DIC
Recorded by: Bartels on 2001-07-20
Swain Co.
Comment: Claws, DIC		Recorded by: Bartels on 2001-07-20
Swain Co.
Comment: Claws, DIC
Recorded by: Bartels on 2001-07-20
Swain Co.
Comment: Buccal apparatus, DIC