How to Distinguish from Similar Species: The two pairs of enlarged, chelatepereopods (photo) distinguish this species from shrimp in other families. The other local Pasiphaeids, such as Pasiphaea pacifica, are strongly laterally compressed and may be partly transparent. Members of genus Pasiphaea also do not have a true rostrum--instead, a median spine from the dorsal carapace projects up just behind the front of the carapace, looking somewhat like a rostrum. A related species also found bathypelagically in our region, Parapasiphae cristata, differs because P. sulcatifrons has no teeth at the base of the rostrum (photo) and the fingers of the second chelae are shorter than the palm, while Parapasiphae cristata has two teeth at the base of the rostrum and the fingers of the second chelae are longer than the palm.
Geographical Range: British Columbia to Baja California, Indo-Pacific, Atlantic, off eastern Australia
Depth Range: Deep mesopelagic
Biology/Natural History: Some notes on the biology of Parapasiphae species, and a key to the different species can be found in Wasmer, 1967, 2005
Kozloff 1987, 1996
Hendrickx, Michel E. and Flor Delia Estrada Navarette, 1996. Los Camarones Pelagicos (Crustacea: Dendrobranchiata y Caridea) del Pacifico Mexicano. Comision Nacional para el Conocimiento y Uso de la Biodiversidad. ISBN 968-29-8882-9
Wasmer, Robert A., 1967. Bathypelagic shrimps (Penaeidea and Caridea) from the eastern North Pacific. Master's thesis, Walla Walla College, College Place, WA. 86 pp.
Wasmer, Robert A., 2005. A remarkable new species of the pelagic shrimp genus Parapasiphae Smith, 1884 (Crustacea: Decapoda: Pasiphaeidae) with double eyes. Proceedings of the Royal Society of Washington 118:1 165-175
General Notes and Observations: Locations, abundances, unusual behaviors:
Authors and Editors of Page:
Dave Cowles (2006): Created original page