68 PROCEEDINGS OF .THE NATIONAL MUSEUM VOL. 120 
Australia: Little Lagoon and vicinity northeastern end of Groote 
Eylandt, Gulf of Carpentaria, 1948, R. R. Miller, 1 fragmented male; 
Yirrkala, 1948, Arnhem Land Exped., 2 fragmented males; Umba 
Kumba, south side of Little Lagoon, northeastern end Groote Eylandt, 
Gulf of Carpentaria, taken between Apr. 6 and May 18, 1948, R. R. 
Miller, 1 male, 1 female; Ironstone Reef at Rocky Beach +3 mi. S. of 
the point E. of Yirrkala and NW. of Cape Arnhem, N.T., July 18, 
1948, R. R. Miller and F. M. Setzler, 1 male, 1 female (soft and 
fragmented). 
Palau Is.: GVF, High I., Atoll Project, Sta. 12, 1955, H. A. Fehl- 
mann, S. Pierce, R. Harry, 2 males; GVF, High Atoll Project, Sta. 60, 
W. of Ebadul’s Pier, north end of Koror IJ., sand and eel grass flat, 
1011—Crustacea, Aug. 5, 1955, Fehlmann and Harry, 1 male. 
Marianas: Ajayan River, Guam, 112X-65, June 19, 1945, D. H. 
Johnson, 1 male, 2 females; Oca Point, Guam (Alupat I.), July 5, 
1945, L. P. McElroy, 1 female; Y114A, from under stones in holes in 
dead coral blocks, intertidal zone, Tomil Harbor, received June 23, 
1952, 2 males, 2 females, 7 juvs. 
Samoan Is.: Apia, outer reef, June 22, 1902, Alb., 1 fragmented 
male; Apia, holes along Vailele River above tidewater, July 1902, Alb., 
1 juv; Pago Pago, no. 10, August 1902, Alb., 1 male. 
Tuamotus and Societies: Sta. 26-57, Maiai I., Tikahau Atoll, lagoon 
side, off beach, Apr. 13, 1957, Bredin Exped., 4 males; Sta. 27, Maiai 
I., Tikahau Atoll, Tuamotu Is., lagoon side, along shore, seining 
marly clay bottom, Apr. 14, 1957, Bredin Exped., 1 female. 
MEASUREMENTS.—Males, 17-91 mm.; females, 19-63 mm.; ovig. 
females, 40-63 mm.; juvs., 8-16 mm. 
ReMARKS.—In juveniles narrower than 10 mm., the fourth antero- 
lateral tooth is smaller than the fifth, and the specimens key out in the 
wrong direction at couplet 3 in Stephenson and Hudson (1957, p. 
316). 
In the males ‘89 mm. Port Uson, West of Pinos I., Dec. 17, 1908, 
Alb.,” and ‘91mm. Cebu market, Mar. 26, 1909, Alb.,” the mesogastric 
ridges are concave anteriorly instead of being straight, and the basal 
antennal joint is more crestlike than usual. Possibly these features 
are related to size, these being the largest specimens so far examined by 
the senior author. 
The single Sacculina infected male ‘34 mm, Alimango River, 
Burias I., Mar. 5, 1909; Alb.,” in addition to having the characteris- 
tically broader abdomen, has an unusually convex carapace. 
The male “47 mm, Koh Chang, Siam, Jan. 14, 1924,” has the sub- 
median and lateral frontal lobes fused on the left side. 
