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- Title
The Model Organism Hermissenda crassicornis (Gastropoda: Heterobranchia) Is a Species Complex.
- Authors
Lindsay, Tabitha; Valdés, Ángel
- Abstract
Hermissenda crassicornis is a model organism used in various fields of research including neurology, ecology, pharmacology, and toxicology. In order to investigate the systematics of this species and the presence of cryptic species in H. crassicornis, we conducted a comprehensive molecular and morphological analysis of this species covering its entire range across the North Pacific Ocean. We determined that H. crassicornis constitutes a species complex of three distinct species. The name Hermissensa crassicornis is retained for the northeast Pacific species, occurring from Alaska to Northern California. The name H. opalescens is reinstated for a species occurring from the Sea of Cortez to Northern California. Finally, the name H. emurai is maintained for the northwestern species, found in Japan and in the Russian Far East. These three species have consistent morphological and color pattern differences that can be used for identification in the field.
- Subjects
NORTHERN California; GASTROPODA; MOLLUSK classification; MOLLUSK morphology; PHARMACEUTICAL research; NEUROLOGICAL research
- Publication
PLoS ONE, 2016, Vol 11, Issue 4, p1
- ISSN
1932-6203
- Publication type
Article
- DOI
10.1371/journal.pone.0154265