184 BULLETIN 120', UNITED STATES NATIONAL MUSEUM 



Monterey, California: From stomach of fish; A. S. Taylor; 1 male, 

 without chelipeds or legs, cotype (1244, M. C. Z.). H. Hemphill; 

 1 male (3291). 



Monterey Bay, California: Low tide among and under rocks; 1898; 

 Harold Heath; 4 males, 3 females, 3 young (22874). 



Pacific Grove, California: John C. Brown; 2 males, 3 females (1 

 ovigerous). 1918; T. S. Oldroyd; 1 male, 1 ovigerous female (54010). 



Genus LEUCIPPA Milne Edwards 



Leucippa Milne Edwards, Ann. Soc. Entom. France, vol. 2, 1833, p. 512; 

 type, L. pentagona Milne Edwards; Hist. Nat. Crust., vol. 1, 1834, p. 345. 



Carapace subpentagonal or subtriangular, the length exceeding the 

 width but little; lateral margins dSntate or lobed. Rostrum hori- 

 zontal, wide, lamellate, two-horned. A preorbital and a postorbital 

 tooth present. Eyes small; peduncle very short. Basal article of 

 outer antennae short; next two articles concealed under the rostrum. 

 Epistome of moderate size; merus of outer maxillipeds much dilated 

 outwardly, slightly truncate at the anterior inner angle, a small sharp 

 tooth in front of insertion of palp. Legs short, compressed. Abdo- 

 men with seven segments free in both sexes. 



Contains only one species, from South America and west coast of 

 Mexico. 



LEUCIPPA PENTAGONA MUne Edwards 



Plate 61; plate 222, figs. 7-9 



Leucippa pentagona Milne Edwards, Ann. Soc. Entom. France, vol. 2, 1833, 

 p. 517, pi. 18B, figs. 1 and 2 {pantagona, on plate) (type-locality, Chile; 

 type in Paris Mus.); Hist. Nat. Crust., vol. 1, 1834, p. 347, pi. 15, figs. 9 

 and 10.— Rathbun, Proc. U. S. Nat. Mus., vol. 21, 1898, p. 572; vol. »8, 

 1910, pp. 571 and 613. — Doflein and Balss, Jahrb. Hamburg. Wiss. 

 Anst., vol. 29, 1912, p. 36, text-fig. 4. 



Leucippa ensenadae Milne Edwards and Lucas, d'Orbigny's Voy. I'Amer. 

 Mdrid., vol. 6, pt. 1, Crust., 1843, p. 9 (type-locality, "I'Ensenade de Ros," 

 Patagonia; type in Paris Mus.); atlas, vol. 9, 1847, pi. 5, figs. 3-36. 



Leucippa laevis Dana, Amer. Journ. Sci., ser. 2, vol. 11, 1851, p. 273 (locality 

 not given); U. S. Expl. Exped., vol. 13, Crust., pt. 1, 1852, p. 135 (type- 

 locality, Rio de Janeiro; type not extant); atlas, 1855, pi. 6, fig. 5a-c. 



Leucippa levis Smith, Trans. Connecticut Acad. Sci., vol. 2, 1869, p. 33. 



Pugettia, species, Miers, Proc. Zool. Soc. London, 1881, pp. 63 and 66. 



Pugettia australis Miers, Proc. Zool. Soc. London, 1881, p. 66 (type-locality, 

 mouth of Rio de la Plata, 28 fathoms, lat. 36° 47' S., long. 55° 17' W.; type 

 in Brit. Mus.); Challenger Kept., Zool., vol. 17, 1886, p. 40 (sp.?). 



Diagnosis. — A preorbital and a postorbital tooth. Rostrum flat, 

 bifid. Chelipeds, legs and basal article of antennae cristate. 



Description. — Covered with a vesicular pubescence, easily rubbed 

 off, except on fingers and horny tips of ambulatories. Carapace sub- 

 triangular, smooth; median region sparingly tumid; rostrum elongate, 

 furcate, horns triangular, usually acute, and with a narrow, triangular 



