trionychid

plural trionychids

1. biologyAny turtle in the family Trionychidae.

   2 more examples

   It is perhaps instructive to note that tropical riverine batagurids, although more similar to other river-dwelling lineages in reproductive patterns than to other semi-aquatic and terrestrial batagurids, still tend to have lower fecundities and bigger eggs relative to their body sizes than do the other groups (e.g., riverine emydids, trionychids, and podocnemids) (Moll & Moll, 1990).

   2004, Don Moll, The Ecology, Exploitation and Conservation of River Turtles, page 46

   Loss of scutes (and corresponding loss of sucli^([sic]) on the underlying shell plates) is widely regarded as a derived condition that has occurred independently in trionychids, advanced carettochelyids (Carettochelyidae), and derived sea turtles such as dermochelyids and protostegids (e.g., Meylan 1988; Hirayama and Chitoku 1996).

   2012, Donald B. Brinkman, editor, Morphology and Evolution of Turtles

   Synonyms: soft-shell turtle