PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. Al 
| 
1. 2. 3 4. 5 6. 
of cof of of cof on 
52. 0 51.0 47.0 57.0 57. 0 62.0 
26.3 25. 5 24.9 28.3 29.3 30. 0 
9.4 9.5 8.4 9. 2 10. 4 9.5 
12.2 ay ire 11.8 13.4 13.4 14.4 
14.3 13.8 13.0 16. 2 16. 1 18.1 
83. 0 87.0 78.0 | 117.0} 110.0] 107.0 
33. 0 36. 0 32. 0 49. 0 46. 0 45.0 
Uo 6.8 7.0 8.3 8.5 8.4 
38. 3 40.0 36. 0 55. 0 51.5 49.0 
18.5 18.5 17.0 23.1 21.4 21.3 
49. 0 50. 0 49.0 64. 0 68.0 | 66.0 
4.3 4.2 4.0 4.6 4.5 4.7 
The specimens from which the Jast four columns of measurements 
were taken have the chelz modified, as usual in the old males of the 
species of the genus, by the proximal curvature and expansion of the 
digits, particuiarly the propodal, so as to leave them gaping at base ; 
while the specimen from which the second column of measurements was 
taken has the chelz slender and unmodified as in the female. 
Specimens examined. 
FI = No. of speci- 
i 2 mens. 
S Locality. = 2 
A y Nature of bottom. 3 zp 
& N. lat. W. long. a F e 
3s sa <q = 
~ md < 
7) A E S 
OFF MARTHA’S VINEYARD. 
oO f Ww fo} / uy 1881. 
865 | 40 05 00 70 23 00| 65! fne. S. M. Sept. 4 | 2 
871 | 40 02 54 70 23 40 115 | M. fne. 8S. ; Sept. 4 150+ 
872 | 40 05 39 70 23 52 86 | S.G.Sh. & sponges.| Sept. 4 | 15 
873 | 40 02 00 70 57 00 100 sft. M. | Sept. 13 3 
574 | 40 00 00 70 57 00 85 sft. M. | Sept. 13 6 
877 | 39 56 00 70 54 18) 126 sft. M. Sept. 13 1 
878 | 39 55 00 70) 54, 35 142 M. | Sept. 13 6 
921 | 40 07 48 70 43 54 67 gn. M. | July 16 44044 + 
922} 40 03 48 70 45 54 71 gn. M.S. July 16 1, 300-4] + 
923 | 40 01 24 70 46 00 98 S. July 16 
939 | 39 53 00 69 50 30| 264 en. M.S. | Aug. 4 1 
940 | 39 54 00 69 51 30} 134 hrd. 8. sponges. Aug. 4 80-++} + 
941} 40 01 00 69 56 00 79 hrd.S. M. | Aug. 4 500+) + 
944 | 40 O01 00 71 14 30}; 128 M.S. Sh. } Aug. 9 15 
949 | 40 03 00 70 32 00] 100 yl M. | Aug. 23 500+) + 
1088 | 39 58 00 70 06 00| 146 S. and Sh. Sept. 21 8 
1040 | 40 00 00 70 06 00 93 S. and Sh. Sept. 21 | 7 
1151 | 39 58 30 70 37 00] 125 S. 1. Oct. 4 | 1d 
OFF DELAWARE BAY. 
1881. 
1043 | 38 39 00 73 11 00, 130 s Oct. 10 154 | 18 
1046 | 38 33 00 73 18 00/] 104 S$ Oct. 10 10 
1047 | 38 31 00 73 21 00} 156 PS) Oct. 10 2 
OFF CHESAPEAKE BAY. 
1880. 
896 | 37 26-00 74 19 00| 56 S. Sh. Noy. 16 3 
899 | 37 22 00 74 29 00) 57 Ss. Nov. 16 92 
