Physical Description

Diagnostic Description

Material.

 

Gouveia: 3 specimens.

 

Description.

 

The description is based on an adult specimen 236.95 μm in total length. Head with three lobes and one pair of ciliary tufts. Pharynx 64.93 μm in length from the posterior edge of the mouth to the pharyngo-intestinal junction (PhIJ), at U27. Hypostomion as a weak transverse furrow. Three pairs of lateral parafurcal spines, the two posteriormost longer than the adhesives tube. Adhesive tubes very long and thin.

 

Features Range N Body length 150.76-236.95 µm 3 Length of adhesive tube 26.15-32.46 µm 3 Pharynx length 35.38-63 µm 3 Diameter of mouth ring 10-14 µm 3 Cephalion length 30.96 µm 3 Length of the egg 100 µm 3 Length of rearmost lateral spines 38.46-71.42 µm 3

 

Remarks.

 

The genus Lepidochaetus was originally described by Kisielewski (1991) to group some Chaetonotus species characterized by numerous, rounded, unkeeledscales , provided with long and thin spines covering both the dorsal and the ventral body surfaces. However, here we follow Balsamo et al. (2009) who considered this taxon as a subgenus of Chaetonotus . Our specimens resemble Chaetonotus (Lepidochaetus) brasilianus ( Kisielewski 1991 ), due a similar scale shape and distribution, and rearmost lateral spines arranged in three pairs, which gradually grow in length in a caudal direction. However, they can be distinguished from the previously described species by the absence of cuticular rods and the neck sensorial bristles.

 

Distribution.

 

Brazil: Diamantina, Gouveia (Minas Gerais State).

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Garraffoni,  Andre R. S.

Source: Plazi.org

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Ecology

Habitat

Depth range based on 4 specimens in 4 taxa.

Environmental ranges
  Depth range (m): 0 - 1.75

Graphical representation

Depth range (m): 0 - 1.75
 
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Wikipedia

Chaetonotus

Chaetonotus is a gastrotrich genus in the family Chaetonotidae[1]

References[edit]

  1. ^ Hynek Burda, Gero Hilken, Jan Zrzavý: Systematische Zoologie. UTB, Stuttgart 2008, ISBN 978-3-8252-3119-4
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Chaetonotus (Chaetonotus)

Chaetonotus (Chaetonotus) is a gastrotrich subgenus in the family Chaetonotidae.

References

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