CLIPPERTON ISLAND DECAPODS—CHACE 607 
W. Baldwin; 1 male, 9 females (8 ovigerous).—October 1956; C. 
Limbaugh; 1 male.—Hast side, coral reef; August 9, 1958; Sta. 
W58-283; Reese, Baldwin, and Wintersteen; 1 male, 3 females.— 
South shore, cora] reef; August 11, 1958; Sta. W58-285; Reese, 
Limbaugh, Baldwin, and Wintersteen; 4 males, 3 ovigerous females.— 
Northwest end, reef; August 14, 1958; Sta. W58-288; Reese, Baldwin, 
and Wintersteen; 1 male, 2 females.—EKast end, coral reef; August 15, 
1958; Sta. W58-289; Reese, Baldwin, and Wintersteen; 13 males, 
16 females (11 ovigerous).—South shore, coral reef; August 19, 1958; 
Sta. W58-295; Reese, Baldwin, and Limbaugh; 1 male.—August 
7-26, 1958; Sta. ITP F-1; Reese, Baldwin, and Wintersteen; 1 male.— 
August 7-26, 1958; C. Limbaugh; 1 male.—Northeast side, 45 feet; 
August 28, 1958; Limbaugh, Chess, and Hambly; 1 female.—Coral 
reef, intertidal; August 1958; E. S. Reese; 1 ovigerous female.— 
Northeast side, reef flat, 0-1 feet at low tide; collected with ‘‘Endrin”’ 
insecticide; September 13, 1958; Limbaugh, Chess, and Hambly; 
2 males, 8 females (7 ovigerous).—Northeast side, 50-60 feet; Septem- 
ber 20, 1958; C. Limbaugh; 2 males. 
MEASUREMENTS: Carapace lengths of males, 3.2-10.8 mm.; of 
females without eggs, 3.3-7.9 mm.; of ovigerous females, 6.9-11.5 mm, 
Remarks: In the smallest specimen, which has a carapace length 
of 3.2 mm. the appendix masculina on the second pleopods is very 
short, hardly more than a bud. All 28 of the females with a carapace 
length of 8.0 mm. or more are ovigerous, whether they were collected 
in August, September, or October. 
DistRiBuTION: Red Sea, Ceylon, Wake Island, Hawaii, Bermuda 
to Curacao, Liberia, and the Mediterranean. B. biunguiculatus may 
be pantropical, but it has not yet been recorded from the Pacific 
coast of the Americas. 
Palaemon (Palaemon) gladiator Holthuis 
Palaemon, sp. Rathbun, 1902, p. 291. 
Palaemon rittert Schmitt, 1924, p. 168. Not P. ritteri Holmes, 1895. 
Palaemon gladiator Holthuis, 1950, p. 96. 
Palaemon (Palaemon) gladiator Holthuis, 1952, p.178, pl. 44, figs. h-l. 
Materia: Lagoon; November 238, 1898; Hopkins Stanford Galapa- 
gos Expedition; 1 male. 
MEASUREMENTS: Carapace length, 4.7 mm. 
DistRIBUTION: Otherwise known only from the Galapagos Islands. 
The numerous specimens of P. gladiator that have been taken by 
several expeditions to the Galapagos Islands, where the Hopkins 
Stanford Expedition concentrated its activities, and the absence of 
specimens from collections made subsequently at Clipperton Island 
might cast some doubt on the validity of the Clipperton record. 
There is no evidence of mislabeling, however. The limited attention 
