Effects of external salinity on Scutus breviculus (gastropoda, prosobranchia)—II. Nerve conduction

Abstract

• 1.

  1. With adequate stimulation the compound action potentials of the cerebropedal and cerebropleural connectives of the prosobranch Scutus breviculus were found to have components with conduction velocities ranging from 0·64 to 0·13 m/sec.

• 2.

  2. Q₁₀ values for conduction velocities measured between 13 and 19°C were found to fall within the range 1·33–1·75.

• 3.

  3. The conduction velocities were also measured with the connectives surrounded by artificial media with cation concentrations the same as those measured in the blood of Scutus specimenswhich had been kept in diluted sea water.