Family ANCINIDAE Dana, 1852
Compiler and date details
Gary C.B. Poore
Introduction
The two genera of this family have long been recognised as different from the Sphaeromatidae. Iverson (1982) treated Dana's (1852) name as a subfamily of Sphaeromatidae but it family status has recently been revived.
Diagnosis
Head fused to pereonite 1; coxae 2–7 indicated dorsally by sutures; pleonites 1–5 fused, separate from pleotelson. Frontal lamina fused to clypeus. Mandibular incisor tridentate; lacinia mobilis elongate, multicusped, cultrate; spine row absent; molar process elongate, blade-like, with serrate distal margin. Maxillipedal endite short, without distal setae. Pereopod 1 propodus expanded, dactylus prehensile; pereopods 2–7 ambulatory. Pleopods 4 and 5 without plumose marginal setae, pleopod 5 exopod with scale patches. Uropods anterolateral, endopod fused to peduncle. Sexual dimorphism not pronounced.
General References
Dana, J.D. 1852. On the classification of the Crustacea Choristopoda or Tetradecapoda. American Journal of Science and Arts 2 14(41): 297-316
Iverson, E.W. 1982. Revision of the isopod family Sphaeromatidae (Crustacea: Isopoda: Flabellifera) I. Subfamily names with diagnoses and key. Journal of Crustacean Biology 2: 248-254
History of changes
| Published | As part of group | Action Date | Action Type | Compiler(s) |
|---|---|---|---|---|
| 05-Aug-2022 | 04-May-2011 | MODIFIED | ||
| 05-Aug-2022 | 29-Jun-2010 | MODIFIED | ||
| 12-Feb-2010 | (import) |