Amphinominae Savigny
Creators: name: Bleeker, Joke
name: Harris, Leslie
name: Ten Hove, Harry A.
name: Salazar-Vallejo, Sergio I.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Amphinomida
Amphinomidae

description: KEY TO GENERA OF AMPHINOMINAE SAVIGNY IN LAMARCK, 1818 (MODIFIED FROM SUN & LI 2017)
REMARKS
Paramphinome Sars, 1869 is a nomen nudum because it was included in a species list (Sars 1869); the genus and species were published posthumously by his son (Sars 1872).
1. Caruncle present, variably developed; neuropodia lateral; neurochaetae non-retractile ............................. 2
— Caruncle absent; neuropodia ventral; neurochaetae retractile ..... Hipponoe Audouin & Milne-Edwards, 1830
2(1). Branchiae present on all chaetigers, starting from chaetiger 1 ................................................................... 3
— Branchiae missing in some chaetigers, starting from anterior chaetigers (not from the first) ..................... 4
3(2). Caruncle with a median ridge, concealing lateral plates, never with digitate lobes; spurred neurochaetae without denticles ............................................................................................ Eurythoe Kinberg, 1857 (partim)
— Caruncle with a median ridge and up to four lateral digitate lobes directed posteriorly; spurred neurochaetae with denticles along inner side .................................................................................................................... ............................................ Pherecardites Horst, 1912 (incl. Branchamphinome Hartman, 1967, see above)
4(2). Branchiae present from chaetiger 2-4; eyes commonly present ................................................................. 5
— Branchiae present from chaetiger 6; eyes absent; caruncle with a median ridge and smooth lateral lobes ..... ............................................................................................................................. Benthoscolex Horst, 1912
5(4). Chaetiger 1 dorsally continuous, complete ............................................................................................... 6
— Chaetiger 1 dorsally discontinuous, incomplete ....................................................................................... 7
6(5). Chaetiger 1 with stout, falcate notohooks; caruncle round, sessile, without free lateral wings; neurochaetae bifurcates; harpoon notochaetae with 1 row of denticles .......................... Paramphinome Sars in Sars, 1872
— Chaetiger 1 without notohooks; caruncle stalked, broadly triangular to chordate with free lateral wings; neurochaetae falcate, unidentate; harpoon notochaetae with up to 2 rows of denticles ... Amphinome Bruguière, 1789
7(5). Caruncle small, not extended beyond one chaetiger ................................................................................. 8
— Caruncle large, extended posteriorly beyond more than one chaetiger ..................................................... 9
8(7). Branchiae present on almost all chaetigers .............. Cryptonome Borda, Kudenov, Bienhold & Rouse, 2012
— Branchiae restricted to anterior chaetigers ................................................ Linopherus de Quatrefages, 1866
9(8). Caruncle narrow, longer than wide, with a median ridge ....................................................................... 10
— Caruncle wide, often longer than wide, or wider than long; branchiae from chaetiger 1 ......................... 12
10(9). Caruncle median ridge concealing lateral lobes (visible in lateral view) .................................................. 11
— Caruncle without lateral lobes; branchiae from chaetigers 2-3 ........................ Pareurythoe Gustafson, 1930
11(10).Bifurcate neurochaetae short, thick, shorter tine 0.5-4.0 times longer than handle width; branchiae present from chaetigers 2-4 .................................................................................. Eurythoe Kinberg, 1857 (partim)
— Bifurcate neurochaetae long, thin, shorter tine 10-15 times longer than handle width; branchiae present from chaetiger 4 ....................................................................................................... Alleurythoe Sun & Li, 2017
12(9). Caruncle as long as wide, with a median ridge, with series of foliose lateral lobes ..... Pherecardia Horst, 1886
— Caruncle slightly longer than wide, without median ridge .................................. Hermodice Kinberg, 1857
description: Published as part of Bleeker, Joke, Harris, Leslie, Ten Hove, Harry A. & Salazar-Vallejo, Sergio I., 2023, Pherecardites Horst, 1912 and Branchamphinome Hartman, 1967 are synonyms (Annelida, Amphinomidae, Amphinominae), pp. 435-443 in Zoosystema 45 (13) on page 438, DOI: 10.5252/zoosystema2023v45a13, http://zenodo.org/record/8177448