Chaetonotus (Hystricochaetonotus) aemilianus 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

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. C7, is so different that it should be described as a new species once more material can be acquired.

Chaetonotus sp. C7 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.