Ancistrosyllis McIntosh 1878
Creators: name: Plathong, Sakanan
name: Plathong, Jintana
name: Dean, Harlan K.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Phyllodocida
Pilargidae
Ancistrosyllis

description: Key to the species of Group II Ancistrosyllis
(modified after Plathong, Dean & Plathong 2021)
1. Eyespots present...................................................................................... 2
- Eyespots absent...................................................................................... 3
2. First notopodial hooks from chaetiger 3; ventral cirri from chaetiger 3............................................................................. A. hartmanae Pettibone, 1966; Chesapeake Bay-Gulf of Mexico, Western Atlantic
- First notopodial hooks from chaetiger 5, ventral cirri from chaetiger 1......... A. cingulata Korschelt, 1893; Adriatic Sea
3. First notopodial hooks from chaetiger 3.................................................................... 4
- First notopodial hooks from other chaetigers................................................................ 7
4. Neurochaetae, single type, long non-limbate capillary chaetae................................................. 5
- Neurochaetae of 2 or more 2 types ........................................................................ 6
5. Ventral cirri from chaetiger 1; neurochaetae bifid tip; body papillae brown.............................................................................................. A. eidimtaiteae sp. nov.; Gulf of Thailand, Western Pacific
- Ventral cirri from chaetiger 2; neurochaetae, bidentate tip; body whitish.......................................................................................... A. fioronii Fiege & Böggemann, 1999; North Sea, Atlantic Ocean
6. Ventral cirri from chaetiger 1; neurochaetae bifid tips......................................................................................... A. nakkaritae Plathong, Dean & Plathong, 2021; Gulf of Thailand, Western Pacific
- Ventral cirri from chaetiger 3; neurochaetae unidentate tips................................................................................... A. kornkanokae Plathong, Dean & Plathong, 2021; Gulf of Thailand, Western Pacific
7. Ventral cirri from chaetiger 1............................................................................ 8
- Ventral cirri from chaetiger 3, first notopodial hooks from chaetiger 6....................................................................................................... A. jonesi Pettibone, 1966; Maryland, Atlantic Ocean
8. First notopodial hooks from chaetiger 4–6.................................................................. 9
- First notopodial hooks from chaetiger 13................ A. breviceps Hartman, 1963; Southern California, Pacific Ocean
9. Two types of neurochaetae............................................................................ 10
- Three types of neurochaetae.................................. A. suksani sp. nov.; Gulf of Thailand, Western Pacific
10. First dorsal cirri length as those of chaetiger 2, first notopodial hooks from chaetiger 4–6.............................................................................. A. groenlandica McIntosh, 1878; off Greenland, Arctic Ocean
- First dorsal cirri slightly longer than following ones; notopodial hooks begin at chaetiger 6........................................................................... A. commensalis Gardiner, 1976; North Carolina, Atlantic Ocean
description: Published as part of Plathong, Sakanan, Plathong, Jintana & Dean, Harlan K., 2022, Two new species of Ancistrosyllis McIntosh, 1878 (Annelida: Pilargidae) from the Gulf of Thailand, Western Pacific, pp. 195-210 in Zootaxa 5128 (2) on page 209, DOI: 10.11646/zootaxa.5128.2.2, http://zenodo.org/record/6479730