The title’s a little cryptic, I know. But this is the latest installment in the MagDance Series that is part of the residency New Dance Horizons is currently conducting at the MacKenzie Art Gallery as part of its 25th anniversary as a dance company.

I’m not sure how it relates to the works that are being performed, but “ecto” and “endo” are abbreviations for two of three different body types that are said to exist.

“Ectomorphs” are described as naturally slim people who no matter what they eat don’t have problems with weight gain. But they also tend not to be able to put on muscle mass when they work out.

“Endomorphs” are the exact opposite. When they work out, they add muscle mass. But they also struggle to control their weight. Occupying a middle ground between “ectomorphs” and “endomorphs” are “mesomorphs”.

Ecto Endo consists of three works choreographed by Serge Bennathan, Lola MacLaughlin and Tedd Robinson and performed by Susan Elliot, Davida Monk and Robin Poitras. The MacLaughlin work, which will be danced by Elliot, is inspired by a famous painting by Velasquez pictured above. In addition to the dance, there will be a screening of Marie Chouinard’s  film bODY/rEMIX/gOLDBERG/vARIATIONS.

Ecto Endo runs March 3-4 at the MacKenzie Gallery at 8 p.m. Tickets are $25 adults, $18 Seniors, $22 Friends of MacKenzie Gallery or New Dance Horizons.