Boone, Crustacea, Cruises of ''Eagle" and "Ara," 1921-28 129 



outer faces of the carpus and propodus have numerous large, rounded 

 tubercles and are also covered with a short, thick pilosity. The lower 

 finger is short and thick, with an acute tip and two additional teeth 

 on the cutting edge; the upper finger is bare of setae and is more 

 curved than the lower. 



The ambulatories are similar, long and slender and covered with a 

 dense pilosity, the dactyli have an acuminate, horn-colored tip. 



The female described is carrying an egg-mass three-fourths as large 

 as the body and composed of minute golden eggs attached to the hairs 

 of the abdominal appendages. 



Synonymy. — Pilumnus lunatus Milne Edwards and Lucas in 

 D'Orbigny's Voyage dans I'Amerique Meridionale, Crustacea, 

 vol. 6, part 1, p. 20, pi. 9, 1843 ; pl. 9, atlas, 1847.— Gay, Historia 

 de Chile, Crust., vol. 3, p. 143, 1849. — Stimpson, Ann. Lye, Nat. 

 Hist. N. Y., vol. 7, p. 216, 1860. 



Heteractea pilosus Lockington, Proc. Calif. Acad. Sci., vol. 7, p. 97, 

 1876 (1877). — Streets and Kingsley, Bull. Essex Inst., vol. 1, 

 p. 106.— Kingsley, Proc. Acad. Nat. Sci. Phila., p. 396, 1879 

 (1880). 



Heteractea lunata A. Milne Edwards, Crust. Reg. Mex., vol. v, p. 301, 

 pl. 52, fig. 2, 1880. — Eathbun, Harriman Alaska Expedition, 

 Crust., vol. 10, p. 185, 1904.— Schmitt, Univ. Calif. Publ. in ZooL, 

 vol. 23, p. 248, pl. 37, fig. 9, 1921. 



Genus : LOPHOPANOPEUS Rathbun. 

 Lophopanopeus heathii Eatbbun. 



Plate 41. 



Type : The type was collected in Monterey Bay, California, and is 

 deposited in the United States National Museum. 



Distribution: Monterey Bay and Laguna Beach, California. 

 Puerto Refugio, Angeles Island, L. C. and J. San Jose Island, L. C. 

 The ''Ara" material substantially extends the southern range of this 

 species, and establishes the first Costa Rican record for it. 



Material examined : One male and one female, Punta Arenas, 

 Costa Rica, March, 1928, collected by the ''Ara." 



Color: Quite variable, according to all authors. The Costa Rican 



