This first report on deep-sea pycnogonids of the temperate west coast of the United States (California, Oregon, and Washington, but excluding Alaska) is based on several extensive collections. Most of the species recognized in this report are thought to be rare, perhaps in part due to the lack of deep-sea collections from the study areas. All remaining specimens are deposited in the collections of the National Museum of Natural History.
It was the most commonly caught of the Pallenopsis species from the Oregon Basin. This and other species in this report may be quite common in the deep slopes and basins of the Pacific Ocean. REMARKS.-As this species is inadequately described and never illustrated, I include a set of figures of the diagnostic characters.
In most of the above specimens, the angle of the bottle neck and throat tapers from the bottom. DISTRIBUTION.—This species was described from specimens taken on Explorer and Juan de Fuca Reefs in the northeastern Pacific between 1570-2250 m. Specimens from the Farallon Islands were collected at elevations of 512-686 m and 1682 m; samples from Monterey were taken at the deepest of the above stations, 2750 m.
REMARKS.—The height of the dorsomedial tubercle points varies to some extent in this large species. The species is, as far as known, restricted to the temperate and arctic slopes and basins of the North Pacific. It is slightly longer in the above female than that of the type (Turpaeva, 1956, fig.
The eye tubercles of these six specimens are not as long as those of the type. 2(5)), but the organelle or gland below this type tubercle is not visible in the males of this collection. Instead, the thicker spines of the proximal segments of the leg are shorter than the diameters while the spines of.
The terminal three palp segments of the new species are not equal in length, while the eighth segment is slightly longer than the terminal two segments in Stock's species. Of the two long palp segments, the fifth segment is noticeably shorter than the third in C. This can only be due to excessive wear of the claw in each of the specimens of the new species.
REMARKS.—There is only one known species of the genus Hedgpethia closely related to this new species, and that is the only known blind species, H.
Station List
Ladja R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Cayuse R/V Cayuse R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V /V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V /V Cayuse R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V /V Yaquina. Ladja R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina R/V Yaquina /V Yaquina R/V Yaquina R/V Yaquina R/V Cayuse R/V Cayuse R/V Cayuse R/V Cayuse R/V Cayuse R/V Cayuse R/V Cayuse R/V Yaquina. R/V New Horizon R/V New Horizon R/V New Horizon R/V New Horizon R/V New Horizon R/V New Horizon R/V New Horizon R/V New Horizon R/V New Horizon R/V New Horizon R/V R/V New Horizon R/V New Horizon R/V New Horizon R/V New Horizon R/V R.G.
Literature Cited
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