Petersenaspis Sendall & Salazar-Vallejo, 2013

Plathong, Jintana, Plathong, Sakanan & Salazar-Vallejo, Sergio I., 2021, Three new species of Sternaspidae (Annelida: Sedentaria) from Thailand, Zootaxa 5081 (3), pp. 373-388 : 376-387

publication ID

https://doi.org/ 10.11646/zootaxa.5081.3.4

publication LSID

lsid:zoobank.org:pub:241F3263-0DFB-4372-8CA8-1537BF9D0B91

DOI

https://doi.org/10.5281/zenodo.5776991

persistent identifier

https://treatment.plazi.org/id/D9038022-D93A-FFEC-FF5B-FC28FBD86EF6

treatment provided by

Plazi

scientific name

Petersenaspis Sendall & Salazar-Vallejo, 2013
status

 

Genus Petersenaspis Sendall & Salazar-Vallejo, 2013 View in CoL

Diagnosis (after Fiege 2019). Sternaspids with introvert hooks subdistally expanded. Preshield region with eight segments. Ventrocaudal shield stiff with poorly developed ribs and no concentric lines.

Key to species of Petersenaspis Sendall & Salazar-Vallejo, 2013 View in CoL

(Modified after Salazar-Vallejo 2017)

1A. Shield orange or reddish, rarely purple.................................................................... 2

1B. Shield bluish, anterior margin projected forward; anterior segments with four bands of dark brown papillae............................................................................................. P. salazari Wu & Xu, 2017 View in CoL ; South China Sea

2A. Shield with anterior margin truncate; fan with median notch only............................................... 3

2B. Shield with anterior margin projected forward............................................................... 4

3A. First-three chaetigers with about 10 introvert hooks per side............................... P. capillata Nonato, 1966 View in CoL ; Central and Southern Brazil

3B. First three chaetigers with about 14–16 introvert hooks per side........................ P. deani Salazar-Vallejo, 2017 View in CoL ; Costa Rica

4A. Radial ribs well defined; fan with a median and two lateral notches.............................................. 5

4B. Radial ribs barely defined; fan with median notch, no lateral notches................. P. harrisae Salazar–Vallejo, 2017 View in CoL ; South Africa

5A. Anterior shield expanded and lateral shield strong curved..................................................... 6

5B. Anterior shield rounded, not expanded and lateral shield rounded......... P. palpallatoci Sendall & Salazar-Vallejo, 2013 View in CoL ; off Kalibo, Philippines

6A. Shield with solid pigmentation, never banded............................................................... 7

6B. Shield with 2–3 concentric color bands, without ciliary clumps................................. P. narisarae View in CoL sp. nov.; Gulf of Thailand, Western Pacific

7A. Shield butterfly wing-shaped, dark reddish without ciliary clumps................................ P. apinyae View in CoL sp. nov.; Gulf of Thailand, Western Pacific

7B. Shield heart- or kidney-shaped, dark purple with ciliary clumps; posterior margin of fan strongly projected, and laterally expanded........................................................................... P. pakbaraensis View in CoL sp. nov.; Andaman Coast, Southern Thailand

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

SubClass

Sedentaria

Order

Terebellida

Family

Sternaspidae

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF