• General
  • Distribution
  • Impact
  • Management
  • Bibliography
  • Contact
Common name
Pacific brown-banded sea-spider (English), Zebrazeespin (Dutch)
Synonym
Ammothea marginatum ,(Cole, 1904)
Lecythorhynchus marginatus ,Cole, 1904
Lecythorhynchus hilgendorfi ,(Böhm, 1879)
Corniger hilgendorfi ,Böhm, 1879
Ammothea ovatus ,Hilton, 1942
Similar species
Summary
Native to the North Pacific Ocean (e.g., Japan and west America), it has been recorded in Europe since late 70's (Venetian lagoon, Southampton Water) and since 2010 in the North Sea. They likely settled via international shipping by gripping on boat hulls. Their distribution range from 30m depth to the intertidal zone. Apart from a few records in soil samples, information about this species and its impact on the environment are scarce.
Species Description
The adult trunk length is ~2mm and the adult trunk width is ~1.5mm. This pycnogonid has 9-articled palps associated with reduced and rounded chelifores. The trunk is completely segmented, with well-distinct lateral processes, and ridges at the end of the first three segments (Faasse, 2013). The yellowish body features black-brownish spots over the legs.
Notes
Ammothea hilgendorfi distinguishes from Nymphon brevirostre with its wider body and legs, as well as a brown-banded yellowish body opposed to an unicolorous brown-reddish body.
Lifecycle Stages
Males bear the eggs on ovigerous legs until they hatch. The larva is protonymphon developmental type 1 according to Brenneis et al. (2017). It develops as endoparasite of gastrovascular cavities of hydroids (Russel & Hedgpeth, 1990).
Habitat Description
It is found in marine environments from 0 to 30 meters in depth. It may live freely or be associated as ecto-parasite to hydroids. Instances of A. hilgendorfi associated with sea stars (Nakamura & Fujita, 2004) or sea cucumbers (Ohshima, 1927) were also reported.
Reproduction
Sexual. External. Polygynandrous mating (Barreto & Avise, 2008).
Pathway

Principal source:

Compiler: Antoine Flandroit, University of Mons (UMONS)

Review:

Publication date: 2022-09-08

Recommended citation: Global Invasive Species Database (2024) Species profile: Ammothea hilgendorfi. Downloaded from http://www.iucngisd.org/gisd/species.php?sc=2051 on 05-05-2024.

General Impacts
Information about the impacts on the environment and biodiversity is lacking.
Management Info
There is no management regarding this species.
Countries (or multi-country features) with distribution records for Ammothea hilgendorfi
ALIEN RANGE
NATIVE RANGE
Informations on Ammothea hilgendorfi has been recorded for the following locations. Click on the name for additional informations.
Lorem Ipsum
Location Status Invasiveness Occurrence Source
Details of Ammothea hilgendorfi in information
Status
Invasiveness
Arrival date
Occurrence
Source
Introduction
Species notes for this location
Location note
Management notes for this location
Impact
Mechanism:
Outcome:
Ecosystem services:
Impact information
Information about the impacts on the environment and biodiversity is lacking.
Red List assessed species 0:
Locations
BELGIUM
ITALY
NETHERLANDS
UNITED KINGDOM
Outcomes
[6] Unknown
  • [6] Unknown
Management information
There is no management regarding this species.
Bibliography
10 references found for Ammothea hilgendorfi

Management information
General information
Eno, N. C., A. Robin, and C.W.G. Sanderson. 1997. Non-native marine species in British waters: a review and directory. Joint Nature Conservation Committee Monkstone House, City Road Peterborough PE1 1JY UK.
Contact
The following 0 contacts offer information an advice on Ammothea hilgendorfi
Ammothea hilgendorfi
Pacific brown-banded sea-spider, Zebrazeespin
Date assessed
Year published
Eicat category
Justification for EICAT assessment
Confidence rating
Mechanism(s) of maximum impact
Countries of most severe impact
Description of impacts
Assessor
Contributors
Reviewers
Recommended citation
(2024). Ammothea hilgendorfi. IUCN Environmental Impact Classification for Alien Taxa (EICAT).