18 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
MALES (FORM B) 
Philippines: Sta. 5442, west coast of Luzon, South Fernando Point 
Light, 16°30’36”N., 120°11’06”E., 45 fm., coarse sand, May 11, 1909, 
Alb., 3 males. 
FEMALES 
China: Sta. 5303, China Sea, vicinity Hong Kong, 21°44’N., 
114°48’E., 34 fm., blue mud, Aug. 9, 1908, Alb., 1 female; Sta. 5304, 
China Sea, vicinity Hong Kong, 21°46’N., 114°47’E., 34 fm., black 
mud, Aug. 9, 1908, Alb., 1 female; Sta. 5309, China Sea, vicinity 
Hong Kong, 21°53’N., 115°51’E., 62 fm., green mud, Nov. 4, 1908, 
Alb., 2 females; Takao, Formosa, Dec. 3 and 4, 1914, Fred Baker, 
2 females (1 soft and fragmented). 
Philippines: Port Binanga, ship’s side, 6 fm., Jan. 8, 1908, Alb., 
1 female (deformed abdomen); Panabutan Bay, Mindanao, electric 
light, soft mud and sand, Feb. 5, 1908, Alb., 1 female; Sta. 5152, 
Pajumajan I[., 5°22'55”N., 120°15/45”E., Feb. 18, 1908, Alb., 
1 female; Sta. 5157, Tinakta I., Sulu Archipelago, Tawitawi Group, 
5°12’30”N., 119°55’50”E., 18 fm., fine sand, Feb. 21, 1908, Alb., 
1 female (damaged); Sta. 5442, west coast of Luzon, South Fernando 
Point Light, 16°30’36” N., 120°11’06”E., 45 fm., coarse sand, May 11, 
1909, Alb., 22 females (4 ovig., 2 Sacculina infected, 1 damaged), 
1 damaged unsexable specimen; Sta. 5480, Tacbue Point (Leyte), 
10°44’36”N., 125°19’K., 62 fm., fine sand, July 29, 1909, Alb., 1 female. 
JUVENILES 
Philippines: Port Binanga, ship’s side, 6 fm., Jan. 8, 1908, Alb., 
2 juvs. 
MEASUREMENTS.—Males (form A), 21-39 mm. (1 damaged male, 
ca. 40 mm.); males (form B), 30-83 mm.; females, 18-36 mm.; ovig. 
females, 35-37 mm.; juvs. 14 mm.; damaged unsexable specimen, 
ca. 27 mm. 
Remarks.—In most specimens, and after long preservation, there 
are no detectable spots on the dactylus of the swimming legs and the 
general nacreous luster is far from obvious. Most males have ple- 
opods resembling those figured and described by Stephenson (1961a) 
with short, curved, distally swollen appendages bearing a complex 
and dense subterminal armature. These possess abdomens with rel- 
atively broad, sharply converging penultimate segments. 
In three cases male pleopods are quite different, with long gradually 
tapering appendages bent at more than aright angle near their centers, 
and with inconspicuous subterminal armature consisting of small spi- 
nules on the outer surface (fig. 2a). These possess abdomens with rel- 
atively narrow, gradually converging penultimate segments. 
