THE SPIDER CRABS OF AMERICA 201 



proximal end; carpus with some blunt tubercles and spines, inner 

 angle prominent, bluntly rounded; hands little compressed, less than 

 two-thirds as thick as high and about two-fifths as high as its superior 

 length; proximal half of upper margin spined; fingers gaping for more 

 than half their length. Ambulatory legs unarmed. Sternal seg- 

 ments deeply furrowed. 



Measurements. — Male (2193), length of carapace to tip of horns 

 114, width 84, length of cheliped about 272; length of propodus of 

 cheliped on lower margin 125, on upper margin 77.7, width of same 

 excluding spines 30.7, thickness 21, length of movable finger 50 mm. 

 Male (2000, M. C. Z.), length of carapace to tip of horns 133.5, 

 width 96, length of cheliped about 251 ; length of propodus of cheliped 

 on lower margin 113, on upper margin 68.6, width of same excluding 

 spines 30.2, thickness 19, length of movable finger 46.6 mm. 



Range. — California from San Francisco to San Diego; 4 to 74 

 fathoms. 



Material examined. — 



CALIFORNIA 



San Francisco; received December, 1859; T. G. Gary; 1 male of 

 unusual size (2000, M. C. Z.) ; 1 large male, 1 large ovigerous female 

 (334, M. C. Z.); identified by Stimpson. 



Off Farallon Islands; 20 fathoms; October 3, 1899; Albatross; 2 

 males, 1 ovigerous female (33455). 



Monterey; 1880; D. S. Jordan; 6 males, 5 females (5876). 



Monterey Bay: 100 feet; brought in by Chinese fishermen; Harold 

 Heath; 2 males, 1 female (22875). Albatross; 1 male (26117). 



Monterey Bay; 1904; Albatross: Point Pinos Lighthouse, S. 9° E., 

 4.5 miles; 46-56 fathoms; crs. S. Sh. R.; June 7; station 4551; 1 female 

 with RhizocephaUd parasite; 1 young (46591). Point Pinos Light- 

 house, S. 73° E., 4 miles; 66-73 fathoms; gn. M. R.; June 9; station 

 4552; 1 female, 1 young. Point Pinos Lighthouse, S. 67° E., 3.7 

 miles; 65-74 fathoms; R.; June 9; station 4553; 1 male (46533). 



Off Point Conception; January 8, 18S9 ; Albatross : Lat. 34° 25' 25" 

 N.; long. 120° 20' 00" W.; 31 fathoms; gy. S. brk. Sh.; station 2908; 

 1 male, 1 female (15547). Lat. 34° 24' 30" N.; long. 120° 20' 00" 

 W.; 44 fathoms; fne. gy. S.; station 2907; 1 young (17363). 



San Miguel Island; Lieut. W. P. Trowbridge, U. S. Army; 2 males, 

 1 female (2083), types (1 male holotype, 2 paratypes). 



Off San Miguel Island; 1889; Albatross: Lat. 34° 07' 00" N.; long. 

 120° 33' 30" W.; 53 fathoms; brk. Sh. S.; January 5; station 2895; 

 1 female (15546). Lat. 34° 04' 00" N.; long. 120° 19' 30" V/.; 26 

 fathoms; gy. S.; temp. 54.9° F.; February 9; station 2958; 1 male 

 (15600). 



