THE GEAPSOID CRABS OF AMEKICA. 335 



Material examined. — 



Hilo, Hawaii; 1901; U. S. Fish Comm.; 1 female (2530G). 



Kailua, Hawaii; 1901; U. S. Fish Comm.; 1 female (25305). 



Maui, Hawaiian Islands; R. C. McGregor; 1 male y. (23G91:). 



Honolulu, Oaliu, Hawaiian Islands; June 8, 1901; U. S. Fish 

 Comm.; 1 female (25304). 



South coast, Oahu, Hawaiian Islands; Lae-o Ka Laau Light, N. 

 35°, W. C.l'; 222-498 fathoms; Co. R. brk. Sh.; temp. 49.5° F.; Apr. 

 1, 1902; Sta. 3824; Albatross; 1 y. (29338). 



Laysan, Hawaiian Islands; May, 1902; Albatross; 1 male, 3 fe- 

 males (29337). 



Hawaiian Islands; W. H. Pease; 1 female (cotype of P. brientalis 

 Stimp.) (2480). 



Port Lloyd, Bonin Islands; U. S. S. Tuscarora; 1 male (5320). 



Koneshine, Osumi, Japan; under rocks in shallow water; T. Urita; 

 1 female (48451). 



Oho Sima, Tokaido coast, Japan; F. Sakamoto; 2 males (1882G). 



Hongkong, China ; N. Pacific Exploring Exped. ; 2 males (cotypes 

 of P. orientalis Stimpson ) (2012 ) . 



Anambas Islands, China Sea; 1899; Dr. W. L. Abbott; 1 male 

 (23303). 



Atjeh, Sumatra; Capt. Storm; 1 specimen (39157). 



Great Nicobar, Indian Ocean; Mar. 16, 1901; Dr. W. L. Abbott; 

 1 male (25215). 



Egmont Eeef, W. Indian Ocean; 1905; H. M. S. Sealarh; 1 male 

 (41370). 



PLAGUSIA IMMACULATA Lamarck. 



Plate 103. 



Plagiisia immaculata Lamaeck, Hist. Nat. Aniru. .sans Vert., vol. 5, 1S18, p. 



247 (type-locality, la MMiterrandef Je la crois de VOccan Imlicn; type 



in Paris Mus.). — Miers, Ann. Mag. Nat. Hist., ser. 5, vol. 1, 1S7S, p. 150; 



ChuUcnycr Rept., Zool., vol. 17, ISSG, p. 273, pi. 22, fig. 1. 

 Plagusia tvbercvlata Rathijtjn (not Lamarck), Proc. U. S. Nat. Mus., vol. 



21, 1S9S, p. 605. 



Diagnosis. — Carapace very convex, feebly tuberculate; tubercles 

 not fringed with hair. Merus joints of legs with only one fringe 

 of hair, the posterior one, on upper surface. 



Remarks. — Laurie ^ treats immacvlata as a variety of depressa. 

 The series in the United States National Museum seems to be spe- 

 cifically distinct. The lobe on the coxal joints of the legs is entire, 

 as in depressa tuberculata. 



Color. — Pale greeJi, mottled with reddish-brown. Tarsi above 

 dark purplish-brown, with small markings of very pale bluish green. 



' Ceylon Pearl Oyster Fisheries, pt. 5, 1906, Suppl. Kept., No. 40, 1906. p. 429. 



