FISHERY BULLETIN: VOL. 83, NO. 1 



91 m, 29 March 1974, Agassiz. 116 159, SIO, off 

 Encinitas, 51 m, 29 March 1974, Agassiz. 



Mexico— Baja California Norte: 76 59, SIO, 

 off Bahia de San Quintin, 57 m, 1 April 1962, Fish 

 and Wildlife Service staff. 15c? 119, SIO, off 

 Bahia de San Quintin, 73 m, 4 December 1960, C. 

 Boyd and D. Dockins. 126 109 , SIO, off Bahia de 

 San Quintin, 74-77 m, H. C. Perkins. 66 69 , SIO, 

 off Bahia de San Quintin, 143-148 m, 1 April 1962, 

 H. C. Perkins. 26 59, SIO, SE of San Felipe, 120 

 m, 19 January 1968, Thomas Washington. 19, 

 SIO, W of Punta Prieta, 23 March 1960, H. C. 

 Perkins. 66 79, SIO, Bahia Sebastian Vizcaino, 

 88 m, 19 August 1960, W. D. Clarke. 19, YPM, E 

 of Isla Cedros, 110 m, 22 May 1936, Zaca stn 

 126D-10. 46 19, SIO, between San Benito and 

 Isla Cedros, 247-265 m, 27 May 1971, C. Hubbs and 

 S. Luke. 4(5, YPM, E of Isla Cedros, 80 m, 27 

 March 1936, Zaca stn 125D-1. 246 219 , USNM, E 

 of Isla Cedros, 80 m, 5 May 1888, Albatross stn 

 2838. 126 199, SIO, WSW of Red Rock, Bahia 

 Sebastian Vizcaino, 113-119 m, 25 November 1961, 

 E H. Berry Id , YPM, E of Isla Cedros, 73 m, 22 

 May 1936, Zaca stn 126D-4. 46 69, YPM, E of 

 Isla Cedros, 69 m, 27 March 1936, Zaca stn 

 126D-2. 6 holotype, AMNH, off east coast of 

 Isla Cedros, 69 m, 27 March 1936, Zaca stn 

 127D-1. 36 19 and 26 29 paratypes, AMNH and 

 YPM, respectively, collected with holotype. 36 

 li, YPM, E of Isla Cedros, 70-110 m, 27 March 

 1936, Zaca stn 125D-1. Baja California Sur: 

 36 19, SIO, Bahia Sebastian Vizcaino, 55 m, 11 

 August 1952, K. S. Norris. 26 29, SIO, Bahia 

 de San Cristobal, 83-87 m, 2 December 1961, F 

 H. Berry 196 179, SIO, Bahia Asuncion, 68-64 

 m, 17 November 1964, Black Douglas. 206 209, 

 SIO, SW of Punta San Hipolito, 6 March 1954, 

 "J.M. and W.H." 13d 209, SIO, SE of Punta Abre- 

 ojos, 55-59 m, 17 November 1964, Black Doug- 

 las. 46 179, SIO, SE of Punta Abreojos, 73-79 

 m, 17 November 1964, Black Douglas. 216 219, 

 SIO, SE of Punta Abreojos, 91 m, 2 December 

 1960, C. Boyd and D. Dockins. 20d 209, SIO, 

 WSW of Punta Pequeha, 68-73 m, 16 November 

 1964, Black Douglas. 26 39, SIO, 15 km WSW 

 of Boca de las Animas, 55-57 m, 16 November 

 1964, Black Douglas. 146 69, SIO, SW of Santo 

 Domingo del Pacifico, 100 m, 20 April 1969. 19d 

 lb , SIO, 16 km NW of Isla Magdalena, 99-102 

 m, 16 November 1964, Black Douglas. 236 229, 

 SIO, off Bahia Magdalena, 88 m, 3 February 

 1964, C. Hubbs. 30d 30.-, SIO, SW of Isla San- 

 ta Margarita, 75-81 m, 13 November 1964, Black 

 Douglas. 446 269, SIT, SE of Punta Tasco, Isla 



74 



Santa Margarita, 102-106 m, 27 June 1965, Hori- 

 zon. 256 259, SIO, W of Inocentes, 91-93 m, 10 

 November 1964, Black Douglas. 29, SIO, WNW 

 of Punta Lobos, 183-201 m, 9 November 1964, 

 Black Douglas. 16, SIO, Bahia de la Paz, 82- 

 119 m, 12 January 1968, Thomas Washington. 

 Sonora: Id 19, SIO, off Hermosillo coast, 289- 

 304 m, 25 March 1960, Curray and R. H. Parker. 

 19, AHF, S of Isla Tiburon, 4-29 m, 25 January 

 1940. 15d 119, SIO, off Santa Rosalia, 64-48 m, 

 25 March 1960, R. H. Parker. 25d 259, SIO, off 

 Isla San Pedro Martir, 293-307 m, 21 January 

 1968, Thomas Washington. 19, AHF, Bahia de 

 Guaymas, 5 m, 23 March 1949. Sinaloa: 2d 19, 

 USNM, Puerto de la Punta Altata, 9 May 1962, 

 R. E. Bush. 19, USNM, Los Cocos, 42 m, 18 

 May 1962, R. E. Bush. Nayarit: 24d 219, SIO, 

 NE of Isla Maria Madre, Islas Tres Marias, 82-88 

 m, 30 March 1973, Agassiz. 



ACKNOWLEDGMENTS 



Many persons have assisted me throughout the 

 course of this study. Because of the large area 

 covered I was dependent upon many sources for 

 specimens. I am deeply indebted to the following 

 who have lent collections to me, many of which 

 included materials representing new locality 

 records and range extensions: Dustin D. Chivers, 

 California Academy of Sciences; Enrique M. 

 Del Solar, Instituto del Mar del Peru; Harold S. 

 Feinberg, American Museum of Natural History; 

 Jacques Forest, Museum National d'Histoire 

 Naturelle, Paris; H. E. Gruner, Zoologisches 

 Museum, Humboldt- Universitat, Berlin; Janet 

 Haig, Allan Hancock Foundation, University of 

 Southern California; Willard D. Hartman, Pea- 

 body Museum of Natural History, Yale University; 

 Leslie W. Knapp, Smithsonian Oceanographic 

 Sorting Center, Smithsonian Institution; Herbert 

 V. Levi and Catharine G. Sibble, Museum of Com- 

 parative Zoology, Harvard University; Spencer R. 

 Luke, Scripps Institution of Oceanography; Juan 

 B. del Rosario, Universidad de Panama; and Mary 

 K. Wicksten, Texas A & M University, formerly of 

 Allan Hancock Foundation. 



I have the privilege of drawing on the consider- 

 able knowledge of decapod crustaceans system- 

 atics of Horton H. Hobbs, Jr., of the Smithsonian 

 Institution, who has given me numerous sugges- 

 tions during the investigation and has criticized 

 the manuscript. Fenner A. Chace, Jr., of the 

 Smithsonian Institution, and Bruce B. Collette 

 and Austin B. Williams, both of the Systematics 



