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We present herein a new record of the pycnogonid, Anoplodactylus batangensis, from Cenote Nohoch Nah Chich, which is located in Rancho San Felipe (20[degrees]17.92'N, 87[degrees]24.22'W), 6 km north of the town of Tulum, and 3.8 km from Casa Cenote, the site where the Sac Actun system connects with the Caribbean Sea (Fig.
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.
Les Pycnogonides de la croisiere 1951 du President Theodore Tissier.
The pycnogonid fauna (Pycnogonida, Arthropoda) of the Tayrona National Park and adjoining areas on the Caribbean coast of Colombia.
More recently, the mechanics of walking in three species of two families of Antarctic pycnogonid, Family Colossendeidae, species Colossendeis australis and Dodecolopoda mawsoni and family Pallenopsidae: Pallenopsis patagonica, were described in some detail .
Readers not familiar with Pycnogonid anatomy should refer to the well-illustrated and detailed works of King and Manton [1, 4].
We collected pycnogonids from hydroids (Family Haleciidae; 1-30 m deep) by scuba-diving in and around Friday Harbor, Washington (48[degrees] 32' N, 123[degrees] 00' W), in June, 2015.
Measurements were made at 10.5 [+ or -] 0.2 [degrees]C (mean [+ or -] SEM), to approximate the average temperature of the pycnogonids' natural habitat, using a water-jacketed glass cell connected to a recirculating water bath.
Pycnogonids that were free of visible macroepibionts were illuminated, using a Fiber-Lite 180 illuminator (Dolan-Jenner Industries, Inc., Boxborough, MA) equipped with light guides featuring an EKE 21 Volt, 150-watt lamp (Ushio America, Cypress, CA) with a nominal color temperature of 3250 K, which is slightly redder than sunlight (5800 K).
Pycnogonids from both groups were placed individually in chambers with approximately 2 g of hydroids as a food source.
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- py-, pyo-
- pyaemic embolism
- pyel-, pyelo-
- pyelitis cystica
- pyelonephritic kidney
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