266 BULLETIN 152, UNITED STATES NATIONAL MUSEUM 

 GLYPTOXANTHUS LABYRINTHICUS (Stimpson) 



Plate 108, Figures 1-3 



Actaea Idbyrinthica Stimpson, Ann. Lye. Nat. Hist. New York, vol. 7, 1860, p. 



204 [76] (type-locality, Panama; type not extant). 

 Actaea meandrica Lockington, Proc. California Acad. Sci., vol 7, 1876 (1877), 

 ?;■''- p. 97 [3] (type-locality, Mulege Bay, Gulf of California; types not extant). 

 Glyptoxanthus lahyrinthicus A. Milne Edwards, Crust. R6g. Mex., 1879, p. 255, 



pi. 43, figs. 4-46. 



Diagnosis. — Surface vermiculated; vermiculations smooth; fur- 

 rows between them wide; punctae relatively few; mesogastric punctae 

 median and lateral; 5 L flattened. 



Description. — Carapace flatter than in erosus, less minutely eroded 

 or vermiculated; furrows wider, the prominent parts between prin- 

 cipal furrows of erosion being smaller, flatter, and smoother; they are 

 covered with a very fine flat granulation not at all rough. The differ- 

 ence in elevation is especially notable in the area 5 L. The tubercles 

 on outer surface of hands are pointed or mammilliform. 



Lockington says: "This little crab has a peculiarly compact ap- 

 pearance. The rugosities of its limbs are so arranged that when they 

 are folded up close to the carapax not a portion of smooth surface can 

 be seen either above or below, the only smooth portions being lateral 

 and hidden." 



Color. — Variegated with yellow and carmine (Stimpson). 



Measurements. — Female (3272), total length of carapace 23.2, 

 width 32.8 mm. 



Range. — West coast of Mexico; Panama; Galapagos Islands. 



Material examined. — Panama: Rev. J. Howell; 1 male, type 

 (1295, M.C.Z.). Capt. John M. Dow; 1 male, 1 female (3272). 

 Darien Exped., Dr. Maack; 2 males (2218, M.C.Z.). On reef: 

 March 12, 1891; Alhaiross; 1 male (20604). 



Pearl Islands, Panama Bay; April, 1875; S. Garman; 1 female 

 (2306, M.C.Z.). 



Galapagos Islands; June, 1872; Eassler Exped.; 1 female (2219, 

 M.C.Z.), sUght variation. 



GLYPTOXANTHUS VERMICULATUS (Lamarck) 



Plate 108, Figure 4; Plate 109 



Cancer vermiculatus Lamarck, Hist. Nat. Anim. sans Vert., vol. 5, 1818, p. 271 



(type-locality unknown; type in Paris Mus.). 

 Xantho vermiculatus Milne Edwards, Hist. Nat. Crust., vol. 1, 1834, p. 391. — A. 



Milne Edwards, Nouv. Arch. Mus. Hist. Nat., Paris, vol. 4, 1868, p. 49. 

 Actaea angolensis Brito Capello, Desc. alg. esp. nov. Crust, e Arach. Portugale 



poss. Port, do Ultramar, 1866, p. 4, pi. 1, fig. 3-36; reprinted in Mem. Acad. 



R. Sci. Lisboa, Cl. de Sci. Nat., new ser., vol. 4, 1867, pt. 1 (type-locality, 



Angola; type in Lisbon Mus.). 

 Glyptoxanthus vermiculatus A. Milne Edwards, Crust. R^g. Mex., 1879, p. 255, 



pi. 43, figs. 2-26.— Rathbttn, Proc. U. S. Nat. Mus., vol. 22, 1900, p. 288. 



