Family CYTHERIDEIDAE Sars, 1925
Diagnosis
Valves strongly calcified and firm. Anterior margin broader than posterior. Sculpture different. Fused zone broad. Inner margin and line of concrescence mostly coincide, but sometimes small vestibule may be present. Marginal pore canals densely situated, being simple or branched, but always straight. Normal pore canals of sieve type. Antennula strong and 5-segmented. Antenna with two or more terminal claws. Mandibular palp 3-segmented. Maxillula normal. Walking legs on right body side transformed in males.
History of changes
Note that this list may be incomplete for dates prior to September 2013.
| Published | As part of group | Action Date | Action Type | Compiler(s) |
|---|---|---|---|---|
| 28-Mar-2012 | 28-Mar-2012 | MODIFIED | ||
| 30-Mar-2010 | MODIFIED |