PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 9 
Tene OL CONOR 2. oo oa eoaatiwanaesmeinses aie eee ate ae ae Mee ale erm, de eho 3.3 
Same in hundredths of length of carapax..........-.-220- cscs .-ceeee SAS Ee 47 
Se GIA oo conte eile eeate ae aeicle a tacledsnceUedwa Se cwea s7ccas ovavse sone sane 1.2 
Same in hundredths of length of carapax..:...---. .----- ....------2--00- apenas ly ( 
Length of dactylus........-....c0e2 Bt Sa GES RE SSE SB OM OSED Beebe noe ReE Beene 1.9 
Neither Stimpson nor Milne-Edwards mentions the presence of an in- 
terantennular spine in any of the species of Collodes, and both of them 
speak of it in Huprognatha as specially distinguishing that genus from 
its near allies; but in the two species which I have examined the spine 
is well developed, though less prominent, and not projecting forward 
at all in OC. depressus. 
Euprognatha rastellifera Stimpson. 
Stimpson, Bull. Mus. Comp. Zool. Cambridge, ii, p. 123, 1870. 
A. M.-Edwards, Crust. Région Mexicaine, p. 183, pl. 33, fig. 2, 1878; Bull. 
Mus. Comp. Zool. Cambridge, viii, p. 7, 1880. 
Smith, Proc. Nat. Mus., iii, p. 415, 1581; Bull. Mus. Comp. Zool. Cambridge, 
x, p. 4, 1882. 
Specimens examined. 
g a5 No. of speci- 
. S 8 mens. 
; Locality. = S 
& = | Nature of bottom. 3 fa 
e eae = 
§ N., lat. W. long. | 4 FI a Q Fe 
= tases a ce 
D a e E 
OFF MARTHA’S VINEYARD. 
° ‘ “ ° 4 “" 1880 
865 | 40 05 00 70 23 00 65 fne. S. M. Sept. 4 100+ | + 
869 | 40 02 18 70 23 06 192 fne. S. Sept. 4 6 WERE 
871 | 40 02 54 70 23 40 115 fne. S. M. Sept. 4 1,000+ | + 
872} 40 05 39 70 23 52 86 | S.G.Sh. sponges. | Sept. 4 50--: | +- 
873 40 02 00 70 57 00 100 Sft. M. Sept. 13 500+- | + | 
874 40 00 00 70° ‘67 00 85 Sft. M. Sept. 13 1,000+ | + 
877 | 39 56 00 70 54 18 | 126 Sft. M. Sept. 13 204+ | + 
878 | 39 55 00 70 54 15 | 142 M. Sept. 13 300+ | + | 
| | 1881. | 
920} 40 13 00 70 41 54 63 gn. M. July 16 7 e | 
921 40 07 48 70 43 54 67 gn. M. | July 16; 1,500+ | + 
922| 40 03 48 70 45 54 71 gn. M.S July 16 250+ | + 
923 | 40 O1 24 70 46 00 96 S. July 16 37 + 
925 | 39 55 00 70 47 00 229 Ss. M. ; July 16 5 Bcieic 
940 | 39 54 00 69 51 30 | 134| hrd.S.,sponges. | Aug. 4 |.......... ee 
941 40 01 00 69 56 00 79 brd.S. M. ' Aug. 4 2,000+ | + 
949] 40 03 00 70 31 00 | 100 | yl. M. Aug. 23 500+ | + | 
950 | 40 07 00 70 32 00 71 S.Sh. M Aug. 23 150+ | + | 
1036 39 58 00 69 30 00 94 S. Sept. 14 1 | 
1038 39 58 00 70 06 00 146 S. Sh. Sept. 21 2; 4 
1040 | 40 00 00 70 06 00 93 8. Sh. Sept. 21 20+ 
OFF DELAWARE BAY. { 
1881. 
1043 38 39 00 73 11 00 130 Ss. Oct. 10 | 10 Sx, 
1047} 38 31 00 73 21 00 | 156 Ss. Oct. 10| 7 tinct 
OFF CHESAPEAKE BAY. 1880, 
896 | 37 26 00 74 19 00 56 S. Sh Nov. 16| 3 1} + 
899 | 37 22 00 74 29 00 57 | Ss Nov. 16 6 4/4 
| 
