lateral commissures
1. (ANNELIDA)
Commissural blood vessels. Paired segmental lateral blood vessels from the dorsal vessel to anteriorly join the ventral vessel and more posteriorly, the sub-neural vessel; when contractile, they are called lateral hearts or pseudohearts.
2. (NEMATA)
Dorso- or ventro-lateral nerves connecting ganglia and major dorsal or ventral nerves.

Online Dictionary of Invertebrate Zoology. . 2005.

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