opisthobranch

From opistho- +‎ branchia.

• IPA^(key): /ɵˈpɪsθəbɹæŋk/

opisthobranch (plural opisthobranchs)

1. (zoology) A gastropod with gills behind the heart, formerly thought to belong to a single group.

opisthobranch (not comparable)

1. (of gills) Placed behind the heart.

   Antonym: prosobranch

2. (of a gastropod) Having gills placed behind the heart.

   Antonym: prosobranch

   • 2016 January 21, “Choose Your Weaponry: Selective Storage of a Single Toxic Compound, Latrunculin A, by Closely Related Nudibranch Molluscs”, in PLOS ONE‎^[1], →DOI:

     For example, the antitumour depsipeptide kahalalide F was isolated from the opisthobranch mollusc Elysia rufescens, and is used by both the mollusc and its dietary alga Bryopsis spp.