DECAPODS III 
To the localities recorded by me in 1901 (/oc. ci¢.) may be added the 
following: 
Cedar Keys, Florida, in seaweed, between tides, two forms as described 
above (H. Hemphill). 
Trinidad (Adbatross). 
San Diego, California; feet of first pair chelate (D. S. Jordan). 
Off Abreojos Point, Lower California, 48 fathoms (A/éa/ross station 
2834). 
Gulf of California, 29-71 fathoms (A/batross stations 2998, 3011, 3014). 
Panama Bay, 5114 fathoms (4/atross station 2805). 
Range.—Europe; Madeira; Bermudas; from North Carolina to 
Trinidad, including Gulf of Mexico and West Indies; from San Diego, 
California, to Panama Bay; Japan; Amboina. Shallow water to 111 
fathoms. 
Family CRANGONIDZ. 
Genus Crangon Fabricius. 
KEY TO THE SPECIES OF CRANGON. 
A. Gastric region not depressed below the general level of the carapace. 
B. Carapace with 1 or more median spines. 
C. Carapace with 1 median spine. 
D. Sixth segment of abdomen with 2 prominent longitudinal 
Carine ey SS Ae, tet RY Ge Ge vik Mes SOA, 
D’. Sixth segment of abdomen not carinated. 
E. Sixth segment of abdomen sulcate beneath. 
F. Manus of first pair of feet very slender, four or more 
times as long as broad. Fifth abdominal segment 
with a posterior spine at the supero-lateral angles. 
G. Hand of male four and a half times as long as wide 
Jranciscorum. 
G’. Hand of male five and a half times as long as wide 
Jranciscorum angustimana. 
F’. Manus of first pair of feet not slender, less than three 
and a half times as long as wide. 
G. Fifth segment of abdomen not carinate. 
H. Blade of antennal scale having its anterior margin 
more advanced at its inner than its outer angle. 
Sixth segment of abdomen with a large circular 
spot on either side of its posterior end 
nigromaculata, 
H’. Blade of antennal scale having its anterior margin 
retreating toward the inner angle. Sixth seg- 
ment of abdomen without a large circular spot 
seplemspinosa. 
G’. Fifth segment of abdomen furnished with a superior 
median carina. 
H, Antero-internal angle of scale advanced, reaching 
