scholarly journals Revision of sea anemone genus Epiactis (Coelenterata: Actiniaria) on the Pacific coast of North America, with descriptions of two new brooding species

1986 ◽  
Vol 64 (8) ◽  
pp. 1665-1674 ◽  
Author(s):  
Daphne Gail Fautin ◽  
Fu-Shiang Chia

Two new species of the actiniid genus Epiactis, Epiactis lisbethae and Epiactis fernaldi, are described from the intertidal zone of the San Juan Islands, Washington, U.S.A. The sea anemone genus Cnidopus is synonymized with Epiactis, and its type species, C. ritteri, is restored to the genus in which it was originally described. Thus, four species of Epiactis are known on the Pacific coast of North America: external brooders E. prolifera (type species of the genus) and E. lisbethae, which differ in sexuality and brooding periodicity; and internal brooders E. ritteri and E. fernaldi, which differ in cnidae, sexuality, and histology. These bring the number of nominal species in the genus Epiactis to 19.

Zootaxa ◽  
2007 ◽  
Vol 1532 (1) ◽  
pp. 23-39 ◽  
Author(s):  
WILLIAM A. SHEAR ◽  
JEAN K. KREJCA

The milliped genus Amplaria Chamberlin 1941 was synonymized with Striaria Bollman 1888 by Hoffman (1980). Examination of a much wider range of materials of nominal Striaria species both from eastern North America and the Pacific coastal states shows that some species occurring from California to Washington (state) represent a distinct phyletic line, for which Amplaria Chamberlin 1941 is the oldest available generic name. Speostriaria Causey 1960 is a synonym of Amplaria. Amplaria muiri n. sp. and A. adamsi n. sp. are two new, recently discovered species from caves in Sequoia and Kings Canyon National Parks, California. Illustrations are provided of a specimen that may represent the type species, Amplaria eutypa (Chamberlin) 1953.


Zootaxa ◽  
2011 ◽  
Vol 2738 (1) ◽  
pp. 26 ◽  
Author(s):  
YUKIO IWATSUKI ◽  
KEI MIYAMOTO ◽  
KAZUHIRO NAKAYA ◽  
JIE ZHANG

The genus Platyrhina from the northwestern Pacific was reviewed, including a redescription and neotype proposal for Platyrhina sinensis (Bloch and Schneider 1801), and the description of two new species. Platyrhina limboonkengi Tang 1933 is relegated to the synonymy of P. sinensis, both species having two rows of hooked thorns on the mid-dorsum of the tail. Specimens previously widely identified as P. sinensis, but characterized by one row of such hooked thorns, represented an undescribed species, herein named Platyrhina tangi Iwatsuki, Zhang and Nakaya sp. nov. Platyrhina hyugaensis Iwatsuki, Miyamoto and Nakaya sp. nov., known from specimens limited primarily to the Hyuga Nada Sea, off Miyazaki, the Pacific coast of southern Japan, is similar to P. tangi in having one row of hooked thorns on the mid-dorsum of the trunk and tail, but differs in having larger hooked thorns, not encircled by light yellow or white pigment on the orbital, nape and scapular regions, and a pair of hooked thorns (absent in P. tangi) anteriorly on the scapular region. Nominal species are discussed and key to northwestern Pacific species of Platyrhina is provided.


Zootaxa ◽  
2020 ◽  
Vol 4808 (2) ◽  
pp. 201-250
Author(s):  
ALAN A. MYERS ◽  
JAMES K. LOWRY

The amphipod genus Orchestia is revised. It now includes 10 species of which three are new: O. forchuensis sp. nov. from north-eastern North America and Iceland., O. perezi sp. nov. from Chile and O. tabladoi sp. nov. from Argentina. Orchestia inaequalipes (K.H. Barnard 1951) is reinstated. The type species of the genus, O. gammarellus is redescribed based on material from Fountainstown, Ireland and a neotype is established to stabilize the species. The species was originally described from a garden in Leiden, far from the sea. Its true identity is unknown and no type material exists. Orchestia gammarellus (Pallas, 1776) is shown to be a sibling species group with members in both hemispheres of the temperate Atlantic as well along the Pacific coast of South America. A hypothesis for the establishment of the current distribution of Orchestia species is presented that extends back to the Cretaceous. 


1980 ◽  
Vol 112 (10) ◽  
pp. 1061-1069 ◽  
Author(s):  
A. Smetana ◽  
J. M. Campbell

AbstractA new genus and two new species of Phloeocharinae are described and illustrated: Dytoscotes, new genus, pacificus from Oregon, and Phloeocharis californica from California. The biology of the two species is briefly discussed. A key to the Nearctic genera of Phloeocharinae is given.


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