Tardigrades of North Carolina
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View PDFIsohypsibiidae Members: 1 NC Records

Dianea brevispinosa (Iharos, 1966) - No Common Name



Habitus, PC
Taxonomy
Class: EutardigradaOrder: Parachela Family: Isohypsibiidae Checklist Number: 1680.0 Synonym: Isohypsibius cf. brevispinosus, Isohypsibius brevispinosus (see Bartels et al 2021)
Taxonomic Comments: Transferred from Isohypsibius and considered species dubia by Gasiorek et al. 2019 because the original description is too general to allow confident identification.
Species Notes: Terrestrial. Reported from Hungary, Chile, Alaska, GSMNP.
Identification
Online resources:Online Photographs: Google, GBIF                                                                                 
Species Description: Colorless, eye spots present. Cuticle finely granulated, with reticulated design. Dorsal surface covered with 10 transverse rows of gibbosities, which become gradually smaller in a rostro-caudal sense and are thus arranged: 4 in rows 2, 3, 5, 6, 8, 9, 10; 6 in rows 1, 4, 7. The shape of the gibbosities is varied: those dorsal are hemispherical, those lateral are pointed and papilliform, those caudal are rounded or flattened and bear in their center a short pointed spine. Also on the dorsal surface of the legs are found flattened gibbosities with a small central spine; caudal are rounded or flattened and bear in their center a short pointed spine. Also on the dorsal surface of the legs are found flattened gibbosities with a small central spine; the 4th pair of legs have dorsally a conical pointed gibbosity. Pharynx elongate oval (15 x 10 µm in an individual of 110 µm) with 3 macroplacoids (granules), the size increasing from front to back. Microplacoid absent. Doubleclaws of each leg small and of little difference in size; on the 4th pair of legs the external doubleclaws 5 µm, the internal 3.5 µm. The description does not mention the lunule, which however, according to the illustration can be present. Eggs unknown.
-Ramazzotti & Maucci 1983
Body Length: 110-150 microns.
Key Characters: Narrower buccal tube compared to D. basalovoi, cuticle with large reticulations and conical lateral gibbosities.
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: Rock moss and soil/leaf litter.
Abundance: Very rare. This species makes up 0.03% of terrestrial specimens collected in the Great Smoky Mountains National Park.
Diet: Unknown.
Reproduction: Unornamented eggs laid in shed exuvium.
Observation Methods: PC, DIC microscopy
Wikipedia

 Photo Gallery for Dianea brevispinosa - No common name

Photos: 5

Recorded by: Bartels on 2002-11-23
Haywood Co.
Comment: Habitus, DIC
Recorded by: Bartels on 2002-11-23
Haywood Co.
Comment: Habitus, PC
Recorded by: Bartels on 2002-11-23
Haywood Co.
Comment: Claws IV, PC
Recorded by: Bartels on 2002-11-23
Haywood Co.
Comment: Dorsal cuticular pattern
Recorded by: Bartels on 2002-11-23
Haywood Co.
Comment: Claws IV, DIC