554 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 38. 



front of the cervical suture; the margins of fronl and carapace granu- 

 lated; the endostojrnian crest prominent and armed with a denticle; 

 the wrist bordered by a prominent granulated and fringed marginal 

 crest, except on the distal border,and a sharp spine at the infero-distal 

 angle; the abdomen of the female with a backward-pointing fringe 

 of hair on the posterior border of the fourth and the fifth segments. 



EMERITA ANALOGA (Stimpson). 



Plate 49, fig. I. 



Hippaanaloga Stimpson, Proc. Boston Sue. Nat. Hist . , vol. <i, 1857, p. 85. 

 Hippo talpoides Dana, Crust. I'. S. Expl. Exped., pi. 1, L852, p. 409; atlas, 1855, 

 pi. 25, fi,i, r s. 10a-c. 



Carapace oblong-oval, very convex, with line transverse rugae; 

 two short transverse impressed lines on anterior half; antero-lateral 

 margin finely serrulate. Front having three small lobes or teeth, 

 lateral teeth more advanced than median; sinuses rounded. Eye- 

 stalks long and slender, directed forward. Antennules twice as long 

 as eyes. Second joint of antenna! peduncle ending in three spines, 

 of which the middle one is the largest; flagellum very long, curved 

 and bent back under the body. Maxillipeds large, operculiform. 

 First pair of legs not chelate, dactyli oval; dactyli of second and 

 third pairs falcate; fifth pair of legs very slender, concealed. Abdo- 

 men partially extended; telson large, elongate-triangular, more than 

 twice as long as wide. 



Length of carapace 20 to 23 mm. 



Sand beach, Ancon, February L3. Abundant. These "mui-muis" arc used f< >r 

 bait in fishing; also the sofl ones arc eaten. 



From sand beach, NE. side of San Lorenzo Island, January 1 1, 1907. 

 "Cameroncitos;" Mollendo, July 2:5 (or "mui-mni " of other places i. 



Distribution. — From Oregon to Chile. 



EMERITA EMERITA (Linnaeus). 



Plate 19, Bg. 6. 



Cancer emeritus Linn ei s, Syst. Nat., L2th ed., vol. I, pt. 2, 1767, p. L055. 

 Hippn emerita Dana, Crust. U. S. Expl. Exped., pt. I, L852, p. 409; atlas, L855, 

 pi. 25, figs. 9a c. 



Very similar to the preceding, bul larger; carapace rougher, 

 postero-lateral expansion longer; frontal teeth longer and narrower; 

 eves longer, reaching beyond middle of antennules; second joint of 

 antenna] peduncle much longer, due to the greal length of the middle 

 spine; telson less than twice as long as wide. 



Length of carapace :!'_' to 38 mm . 



0( ean beach, Ca] January 29. These are called "l>ar<|iiillas" lure, instead of 



"iiiiii-inui-." as corresponding forms arc known generally on the coasts. They are 

 eaten l>> the fishermen after boiling, l>ni contain Little meat. 



Distribution. — From Lower California to Chile; from Florida to 



Brazil. 



