Pearson 1987-88 Seated phage were droppings produced by the animals in their cages during the first few hours of captivity. 7410 contained recently unidentified crud, then chitin fragments, a few small bones fragments, no fur. One tiny fragment of scapula that from shape could be Ctenomys; no fur in the dropping so must have been a fetus. 7409 contained crud, chitin and meat legs, one big piece of chitin.