| Cyttarocylis Fol, 1881. Several to many species. |
 |
| Parapetalotricha Hada, 1970. Few species [better located in following family?] |
|
| Petalotricha Kent, 1881. Several species. |
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| Contents | Classes | Subclasses | Orders | Suborders | Families |
Family CYTTAROCYLIDIDAE Kofoid & Campbell, 1929
| Syns. | Cyttarocylidae, Petalotrichidae |
Lorica bell- or kettle-shaped, sometimes elongate; collar flared above constriction; wall may be reticulate; all forms marine (predominantly eupelagic). No fossil species.
| Cyttarocylis Fol, 1881. Several to many species. |
|
| Parapetalotricha Hada, 1970. Few species [better located in following family?] |
|
| Petalotricha Kent, 1881. Several species. |
|