A redescription of the female of Lernaeopoda bivia Leigh-Sharpe, 1930 (Lernaeopodidae: Siphonostomatoida) and a first description of the male.

Within the family Lernaeopodidae Milne Edwards, 1840 the females of Lernaeopoda spp. are very similar to those of Neoalbionella spp. Contrarily, the male morphology is different enough to allow distinction between species of the two genera.

A new species of marine leech (Hirudinida: Piscicolidae) from giant kelpfish, Heterostichus rostratus Girard, in southern California.

Collections of giant kelpfish at inner Cabrillo Beach, San Pedro, California revealed the presence of an undescribed species of Heptacyclus, described here as Heptacyclus cabrilloi n. sp. The leech is small, only up to 14 mm total length including suckers; it has 2 pair of slightly crescentiform eyes on the oral sucker, 1 pair of punctiform ocelli on the second annulus of the trachelosome, 13 pairs of punctiform ocelli dorsally and ventrally on the urosome, and 14 marginal punctiform ocelli on the caudal sucker.

A new species of Mysidobdella (Hirudinida: Piscicolidae) from mysids along the California coast.

Mysidobdella californiensis n. sp. is described from the mysid Holmesimysis sculpta from Bodega Bay on the central California coast and from Holmesimysis costata var.