Xystonellidae

Parafavella from the Araon cruise in 2012 in the Chukchi Sea. Mosty closely fits the form described as the species P. media but is likely a morph of P. denticulta.

This odd specimen was found in a sample containing X. lohmanni- it is likely some sort of variant or lorica developmental stage. Also known as a species Coxiella!

Lugol's-fixed specimen from the Bay of Villefranche in June 2010

Live specimen of Xystonella lohmanni from the Bay of Villefranche on July 22 2013. Z-stack of images made using a 10x objective and DIC optics.

Found in a sample with a lot of 'normal' Xystonella lohmanni- this specimen is likely either a va developmental stage or an aberrant form of X. lohmanni.

These specimens were all found in samples taken on June 29 2010 in the Bay of Villefranche

Xystonellopsis tenuirostris from the Costa Rica Dome area. Specimen from a sample collected by M.R. Landry.

Xystonellopsis tenuirostris Specimen from a sample collected by M.R. Landry in the Costa Rica Dome area.

Xystonellopsis tenuirostris from a sample collected by M.R. Landry in the Costa Rica Dome area.

Xystonellopsis tenuirostris from a sample collected by M.R. Landry in the Costa Rica Dome area.

Parafavella hemifusus. Morphotype mostly conforms to Meunier's description but it is likely the same species as denticulta. Specimen from the 2012 cruise of the Araon in the Chukchi Sea.

Specimen from the California Current Ecosystem

Xystonella treforti from a sample collected in the Costa Dome area by M.R. Landry. Imaged using a 10x objective- Z stack.

Figure 3 from plate 42 of Brandt 1907. Size bar from text description pg. 372.

From the South Pacific, Outpace Cruise Phytoplankton Net 18.

From the South Pacific, Outpace Cruise Phytoplankton Net 22.

Data from Dolan, J.R., Pierce, R.W. 2012. Diversity and Distributions of Tintinnid Ciliates. in Biology and Ecology of Tintinnid Ciliates: Models for Marine Plankton, Dolan, J.R., Agatha, S., Coats, D.W., Montagnes, D.J.S., Stocker, D.K. (eds). Wiley-Blackwell, Oxford, pp 214-243

From: Brandt, K. 1896. Die Tintinnen. Bibliotheca Zoologica, 20: 45-72.

Specimen from the Sea of Japan sampled in 2012