New data on freshwater psammic Gastrotricha from Brazil Author Garraffoni, Andre R. S. Author Araujo, Thiago Q. Author Lourenco, Anete P. Author Balsamo, Maria text ZooKeys 2010 60 1 12 http://dx.doi.org/10.3897/zookeys.60.495 journal article http://dx.doi.org/10.3897/zookeys.60.495 1313-2970-60-1 Chaetonotus sp. Fig. 6Table 5 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. Table 5. Morphometrical features of Chaetonotus sp. N= number of specimens measured.

Features	Range	N

Remarks. The genus Lepidochaetus was originally described by Kisielewski (1991) to group some Chaetonotus species characterized by numerous, rounded, unkeeled scales , 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).