• Publications
  • Influence
Phylogeny of Milkweed Tussocks (Arctiidae: Arctiinae: Phaegopterini) and Its Implications for Evolution of Ultrasound Communication
The hypothesis that ultrasound first arose as a redundant courtship cue, with a subsequent loss of the male pheromone, was not supported by data, and male peromone courtship was reacquired after ultrasound courtship in two lineages, based on the presence of coremata and behavioral data.
Anthopleura and the phylogeny of Actinioidea (Cnidaria: Anthozoa: Actiniaria)
It is found that Anthopleura is paraphyletic: although species of the genus cluster together, some groups also include members of genera like Bunodosoma, Aulactinia, Oulactis, and Actinia, and this paraphyly is explained in part by the discovery that acrorhagi and verrucae are pleisiomorphic for the subset of Actinioidea studied.
Acricoactis brachyacontis sp. nov. from Adak Island, Alaska, represents a new genus and family of metridioidean sea anemone (Anthozoa: Hexacorallia: Actiniaria)
  • P. Larson
  • Biology
    Marine Biodiversity
  • 1 September 2018
Molecular data presented here place the family within the clade Acuticulata, and the new species therefore represents a new family, Acricoactinidae, as well as a new, monospecific genus.
Phylogenetic analysis reveals an evolutionary transition from internal to external brooding in Epiactis Verrill (Cnidaria: Anthozoa: Actiniaria) and rejects the validity of the genus Cnidopus
Ancestral character state reconstruction indicates that in the North Pacific, externally brooding species evolved from internally brooding ancestors and that sex allocation is highly labile, while species relationships in Epiactis and Aulactinia appear to conform to geographic patterns more strongly than to taxonomic hypotheses.
‘Putting names with faces’: a description of Epiactis handi sp. nov helps to resolve taxonomic confusion in species of the sea anemone Epiactis (Actiniaria, Actiniidae)
  • P. Larson, M. Daly
  • Biology
    Journal of the Marine Biological Association of…
  • 10 March 2015
It is found that the internally brooding individuals identified by Hand & Dunn (1974) as Cnidopus ritteri belong to a new species which is described and name Epiactis handi sp.
Redescription and notes on the reproductive biology of the sea anemone Urticina fecunda (Verrill, 1899), comb. nov. (Cnidaria: Actiniaria: Actiniidae)
Morphological characters, including verrucae, decamerous mesenterial arrangement, and non-overlapping sizes of basitrichs in tentacles and actinopharynx, agree with a generic diagnosis of Urticina Ehrenberg, 1834 rather than Epiactis Verrill, 1869.
Nematocysts of the Invasive Species Cordylophora caspia THESIS Presented in Partial Fulfillment of the Requirement s for the Degree Master of Science in the Graduate School of The Ohio State
......................................... . ........................................................................... ii
A new color morph of Calappa flammea (Herbst, 1794), with implications for the taxonomy of Calappa Weber, 1795 (Decapoda: Brachyura: Calappidae)
The use of molecular data in combination with morphometrics suggests that the crabs in question belonged to Calappa flammea, which represents an undescribed unique color morph that deviates from their previous description and should be considered for future identifications.