Structure of the Seismosensory System of Psettodes erumei
(Psettodidae, Pleuronectiformes)

E. P. Voronina

Zoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, St. Petersburg, 199034 Russia

e-mail: voron@zin.ru

Received October 13, 2006

Abstract—The structure of the seismosensory system of Psettodes erumei was studied. General and specific
features in comparison with the previously studied representatives of the suborder Pleuronectoidei were
revealed. Similarity is manifested in the presence of four main head canals, coronal commissure, interrupted
supratemporal commissure transformed into a supratemporal canal, and one trunk canal developed on both
sides of the body. The seismosensory system of Psettodes erumei is characterized by several plesiomorphous
characters: the presence of a sensory segment in lacrimale of the eyed side and supracleithrum, the absence of
disruptions in all sensory canals, and a strong branching of cutaneous canaliculi. Specific features of P. erumei
involve the presence of a large number of fontanels on angulo-articulare, connection on the eyed side of CIO
sites in lacrimale and infraorbitale, and the underdevelopment of the bony vault of the sensory canal in praeo-
perculum.

DOI: 10.1134/S0032945207030034

Pleiades Publishing home page | journal home page | top

If you have any problems with this server, contact webmaster.