Ptychogastriidae is a family of cnidarians belonging to the order Trachymedusae. Genera: Glaciambulata Galea, 2016 Ptychogastria Allman, 1878 Tesserogastria... 722 bytes (32 words) - 14:36, 18 October 2023 |
 | Hydrozoa Subclass: Trachylinae Order: Trachymedusae Haeckel, 1866 (1879) Families Geryoniidae Halicreatidae Petasidae Ptychogastriidae Rhopalonematidae... 4 KB (386 words) - 18:36, 27 September 2021 |