Pycnogonids (sea spiders) are globally distributed marine arthropods and are a ubiquitous component of the Southern Ocean benthic community.
Check-list of the pycnogonids from Antarctic and sub-Antarctic waters: Zoogeographie implications.
batangensis female collected associated to the vegetation in the pool of cenote Nohoch Nah Chich, Quintana Roo, Mexico, represents the first occurrence of a pycnogonid in an anchialine habitat.
The presence of this pycnogonid in cenote Nohoch Nah Chich, 3.8 km from the coastline, following the map of the submerged cave, shows that coastal marine organisms can be transported inland through the conduits or passageways of anchialine systems, since there are no superficial bodies of water in the YP, expanding their distribution ranges.
The pycnogonid fauna (Pycnogonida, Arthropoda) of the Tayrona National Park and adjoining areas on the Caribbean coast of Colombia.
Readers not familiar with Pycnogonid anatomy should refer to the well-illustrated and detailed works of King and Manton [1, 4].
The occurrence of similar walking patterns in four families, Colossendeidae, Pallenopsidae, Phoxichilidae, and Nymphonidae would indicate that this may be the normal walking pattern for octopodous pycnogonids.
King, Pycnogonids, St Martin's Press, New York, NY, USA, 1973.
However, one pycnogonid from the experimental group lost a single oviger.
Individual patches of epibionts were outlined, summed, and divided by the total area of the pycnogonid (Chung et al., 2007).
Deleterious effects of a
pycnogonid on the sea anemone Bartholomea annulata.
Decapod crustaceans and
pycnogonids of Rocas Alijos, p.
The material collected is the most complete record of the macrobenthos inhabiting a Canadian high arctic fiord: polychaetes, molluscs (gastropods, bivalves, scaphopods), crustaceans (amphipods, cumaceans, isopods, shrimp),
pycnogonids, bryozoans, and echinoderms (echinoids, holothurians, ophiuroids) are represented in the collections.
In years when anchor-ice disturbance is low, the sponge Homaxinella balfourensis (Ridley and Dendy, 1886) recruits rapidly, and its presence as a foundation species promotes a burgeoning assemblage of sea stars, sea urchins, nemerteans, polychaetes, and
pycnogonids (Dayton, 1989).
