http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/ en-us Gallery 2 RSS Module, version 1.1.8 Tue, 07 Apr 2026 01:38:03 +0200 120 http://gallery.obs-vlfr.fr/gallery2/d/83196-10/Ptychocylis.jpg http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/ http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/Fig6Ptycho2014St9First18cells.jpg.html http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/Fig6Ptycho2014St9First18cells.jpg.html
Morphological variability of Ptychocylis obtusa. The first 18 cells properly orientated encountered in the sample from Station 9, 2014 cruise. Some lorica morphologies resemble: P. drygalski (C) and P. acuta (F & O).]]> John Dolan photo Fri, 23 May 2025 14:31:15 +0200 http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/32xpytcho2015ARA06st17.jpg.html http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/32xpytcho2015ARA06st17.jpg.html
Ptychocyis obtusa from the Chukchi Sea (Arctic) in August 2015.]]> John Dolan photo Fri, 29 Apr 2016 08:45:27 +0200 http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/60xpytchSt42above80.jpg.html http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/60xpytchSt42above80.jpg.html
Ptychocyis obtusa from above 80°N (2012 summer of record low sea-ice)]]> John Dolan photo Fri, 20 Mar 2015 12:47:49 +0100 http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/ptychocylis40xst13can2013.jpg.html http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/ptychocylis40xst13can2013.jpg.html
From Station 13 of the ARA04 cruise to the Canada Basin in August 2013]]> John Dolan photo Sat, 30 Nov 2013 11:28:05 +0100 http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/ptychocylisdrygal40xst15canbas2013.jpg.html http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/ptychocylisdrygal40xst15canbas2013.jpg.html
From the Canada Basin in August 2013, cruise ARA04, St 15]]> John Dolan photo Sat, 15 Feb 2014 18:42:30 +0100 http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/ptychocyliscox40xst15canbas2013.jpg.html http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/ptychocyliscox40xst15canbas2013.jpg.html
From the Canada Basin in August 2013, St 15 of the ARA04 cruise.]]> John Dolan photo Sat, 15 Feb 2014 18:42:08 +0100 http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/ptychocylisobtusalongy40xst15canbas2013.jpg.html http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/ptychocylisobtusalongy40xst15canbas2013.jpg.html
Specimen from the Canada Basin in August 2013, cruise Ara04, Station 15.]]> John Dolan photo Sat, 30 Nov 2013 11:22:45 +0100 http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/toothlessptych40xcanbas2013st13.jpg.html http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/toothlessptych40xcanbas2013st13.jpg.html
Specimen without teeth or serrations on the lorica oral opening. From the Canada Basin in August 2013, cruise Ara04, St. 13.]]> John Dolan photo Sat, 30 Nov 2013 11:20:47 +0100 http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/PtychocylisSized.jpg.html http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/PtychocylisSized.jpg.html
Dimensions of the most common Pytchocylis species based on the text of the original species descriptions. The length (black arrow) is the middle of the range given in Brandt 1896, Brandt 1906-1907. The grey arrow is the lorica oral diameter based on the total length (not given in the text of the discriptions). Brandt, rather than Claparède & Laachmann, is used for P. urnula because they did not state exactly what 'diameter' was.]]> John Dolan photo Thu, 28 Nov 2013 18:23:27 +0100 http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/Clapare__dePtychocylis.jpg.html http://gallery.obs-vlfr.fr/gallery2/v/Aquaparadox/Tins/Ptychocylis/Clapare__dePtychocylis.jpg.html
The type species of the genus Ptychocylis is P. urnula described originally by Claparède & Lachmann as Tintinnus urnula in 1858. Lorica dimensions given as averaging 140 µm in length and 100 µm in diameter.]]> John Dolan photo Wed, 27 Nov 2013 13:31:42 +0100