Chaetonotus (Hystricochaetonotus) aemilianus Balsamo, 1978, Balsamo, 1978

Schwank, Peter & Kånneby, Tobias, 2014, Contribution to the freshwater gastrotrich fauna of wetland areas of southwestern Ontario (Canada) with redescriptions of seven species and a check-list for North America, Zootaxa 3811 (4), pp. 463-490: 482

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Chaetonotus (Hystricochaetonotus) aemilianus Balsamo, 1978


Chaetonotus (Hystricochaetonotus) aemilianus Balsamo, 1978  

Localities. A pond near Waterloo and a pond in the Puslinch district.

Material. 6 specimens.

The Canadian samples contain 4 variations of the very variable C. (H.) aemilianus   . One of them, designated Chaetonotus   sp. C 7, is so different that it should be described as a new species once more material can be acquired.

Chaetonotus   sp. C 7 has 10–12 macrospines in the trunk region. True base scales are absent and the spines are anchored by cuticular protuberances. The macrospines are arranged in 5 columns, there are no short spines on the dorsal surface. Short spines are present laterally. Dorsal scales without spines could not be observed.