Family ANCINIDAE Dana, 1852
Compiler and date details
Gary C.B. Poore
- Ancininae Dana, J.D. 1852. On the classification of the Crustacea Choristopoda or Tetradecapoda. American Journal of Science and Arts 2 14(41): 297-316 [305] [original spelling].
Type genus:
Ancinus H. Milne Edwards, 1840.
Introduction
Ancinidae comprise two small genera from quite different habitats, Ancinus from sand beaches of the New World and Bathycopea from shelf and bathyal environments of the Northern Hemisphere (Loyola e Silva, 1971). Their family status was confirmed by Bruce (1993). Iverson (1982) provided a more extensive diagnosis but treated the group as a subfamily of Sphaeromatidae.
Diagnosis
Body oval, vaulted; head medially fused with pereonite 1; pereonites 1–7 visible dorsally, separated by sutures. Coxal dorsal plates 2–7 delimited from tergite by suture; plate 7 similar to dorsal coxal plate 6. Pleon with pleonite 1 almost hidden dorsally, pleonites 2–5 fused, indicated laterally by none or one suture. Pleotelson broad, triangular. Antennular and antennal peduncles cylindrical, not part of margin of body. Mandibular incisor cultrate, with or without cusps. Maxillula mesial endite small, with 1 simple seta; lateral endite with 7–12 spines, some serrate. Maxilla mesial endite small; second and lateral endites with long setae. Maxillipedal palp of 5 free articles. Pereopod 1 subchelate, propodus swollen, palm with row of close-set robust setae. Pereopod 2 subchelate in males only. Pleopods 1–3 peduncles subquadrate, with terminal rami. Uropods attached anterolaterally to pleotelson; uniramous (exopod only), attached to anterolateral pleotelson.
General References
Bruce, N.L. 1993. Two new genera of marine isopod crustaceans (Flabellifera: Sphaeromatidae) from southern Australia, with a reappraisal of the Sphaeromatidae. Invertebrate Taxonomy 7: 151-171
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
Loyola e Silva, J.d. 1971. . Sobre os generos Ancinus Milne Edwards, 1840 e Bathycopea Tattersall, 1909, da colecao U. S. Nat. Mus. (Isopoda-Crustacea). Arquivos do Museu Nacional. Rio de Janeiro 54: 209-223
History of changes
| Published | As part of group | Action Date | Action Type | Compiler(s) |
|---|---|---|---|---|
| 13-Mar-2025 | CRUSTACEA Brünnich, 1772 | 31-Jan-2025 | MODIFIED | Dr Gary Poore |
| 05-Aug-2022 | 04-May-2011 | MODIFIED | ||
| 05-Aug-2022 | 29-Jun-2010 | MODIFIED | ||
| 12-Feb-2010 | (import) |