trionychid

Noun

trionychid (plural trionychids)

1. Any turtle in the family Trionychidae.
   • 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...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...2012, Donald B. Brinkman, editor, Morphology and Evolution of Turtles

   Synonyms:

   soft-shell turtle