FISHERY BULLETIN: VOL. 78, NO. 1 



Table 8. — Geographic occurrences of Munidopsis species from Cascadia Basin and Tufts Plain (Milne-Edwards 1880; Smith 1884, 

 1886; Henderson 1888; Faxon 1895; Alcock 1901; Benedict 1902; Rathbun 1904; Kensley 1968; Pequegnat and Pequegnat 1970, 1971; 

 Khodkina 1973; Mayo 1974; Laird et al. 1976). 



Eastern Pacific Ocean 



World ocean 



Sibling species' 



Species 



Endemic 



North 

 America 



Arctic Tropical Bipolar Pacific 



Indian and 

 Pacific 



Atlantic 



Species 



Ocean 



M. aries 



M. bairdii 



M. beringana + 



M. cascadia + 



M. ciliata 



M. latirostris 



M. quadrate + 



M. subsquamosa 



M. tuftsi + 



M. verrucosus 



M. yaquinensis + 



' Most similar species, as described in this paper. 



+ 

 + 

 + 



+ 

 + 



M. bermudezi 

 M. nitida 



M. crassa 

 M. granosa 



Atlantic (Laird et al. 



1976) 

 Atlantic (Pequegnat 



and Pequegnat 1970) 



Atlantic (Laird el al. 



1976) 

 Indian (Alcock 1901) 



cadia Basin and on Tufts Plain. Munidopsis ver- 

 rucosus, another deepwater species, may have a 

 bipolar distribution since its only other known 

 occurrence is in the Peru-Chile trench. The three 

 new species may be endemic, but two of them have 

 sibling species in the Atlantic Ocean. Munidopsis 

 quadrata is only found off the west coast of North 

 America from Washington to Mexico. Of the five 

 species occurring off California and Mexico 

 (Schmitt 1921; Haig 1956), M. quadrata is the 

 only one whose range extends north to Oregon and 

 Washington. 



This research was supported by: the Oceanog- 

 raphy Section, National Science Foundation, NSF 

 grant GB-4629; the Atomic Energy Commission, 

 Contracts AT (45-1)1750 and AT (45-1)2227, Task 

 Agreement 12; and the Office of Naval Research, 

 through contract NOOO 14-67-A-0369-0007 under 

 project NR083-102. Ship support was partially 

 supplied by the National Science Foundation 

 Grant OCE 76-00061. The ERDA publication 

 number is RLO-2227-T12-77. 



LITERATURE CITED 



ACKNOWLEDGMENTS 



I am grateful to James E. McCauley and David 

 L. Stein for their taxonomic advice and critical 

 review of the paper, and to Andrew G. Carey for 

 providing the galatheid crabs for this study. For 

 loans of specimens, I thank Raymond B. Manning 

 of the U.S. National Museum, Herbert W. Levi of 

 the Museum of Comparative Zoology at Harvard 

 University, and Linda and Willis Pequegnat of 

 Texas A&M University. I appreciate Linda H. 

 Pequegnat's review of the manuscript. Ken 

 Johnson translated a French article, Gary A. Hal- 

 vorson translated a Russian article, and Kathy 

 Jefferts latinized names of the new species. My 

 special thanks go to Norma C. Smallbone for the 

 excellent drawings. 



I thank the following people with pleasure for 

 their work at sea and in the laboratory over the 

 years: Mimi Alspaach Alton, Frances Bruce Pope, 

 Nikki Cummins, Carolyn Kuelthau Evans, Mike 

 Kyte, Roger Paul, Gene Ruff, and the officers and 

 crews of the RV Yaquina and RV Cayuse. 



ALCOCK, A. 



1894. Natural history notes from H. M. Indian Marine 

 Survey Steamer "Investigator," Commander R. F. Hos- 

 kyn, R. N., late commanding. Series II, No. 1. On the 

 results of the deep-sea dredging during the season 1890- 

 91 (continued). Ann. Mag. Nat. Hist., Ser. 6, 13:321-334. 



1901. A descriptive catalogue of the Indian deep-sea Crus- 

 tacea decapoda and anomala in the Indian Museum. In- 

 dian Med. Serv., Calcutta, p. 1-286. 



Bahamonde, N. 



1964. Dos nuevos Munidopsis en aguas Chileans (Crus- 

 tacea Decapoda, Anomura). Bol. Mus. Nac. Chile 

 28(4):157-170. 



BENEDICT, J. E. 



1902. Descriptions of a new genus and forty-six new 

 species of crustaceans of the family Galatheidae, with a 

 list of the known marine species. Proc. U.S. Natl. Mus. 

 26:243-344. 



Carey, A. G., Jr., and H. Heyamoto. 



1972. Techniques and equipment for sampling benthic 

 organisms. In A. T. Pruter and D. L. Alverson (editors), 

 The Columbia River estuary and adjacent ocean waters, 

 bioenvironmental studies, p. 378-408. Univ. Wash. Press, 

 Seattle. 



Carey, A. G., Jr., J. B. Rucker, and R. C. Tipper. 



1973. Benthic ecological studies at deepwater dumpsite G 

 in the Northeast Pacific Ocean off the coast of 

 Washington. In G. A. Young (compiler), Proceedings of 



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