476 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 5 



Genus OZIUS Milne Edwards, 1834 

 Key to the Galapagos Species of the Genus Ozius 



A^ Carapace less than 1^ times as wide as long . . O. verreauxii 

 A^ Carapace more than 1^^ times as wide as long 



B^ Chelae not strikingly dissimilar. Anterolateral margins 



broadly arched O. peraltus 



B^ Fingers of minor chela extremely attenuate. Anterolateral 



margins almost straight O. tenuidactylus 



Ozius verreauxii Saussure 

 Plate 81, Fig. 3 ; Plate 82, Figs. 5, 6 



Ozius verreauxii Saussure, Rev. Mag. Zool., ser. 2, vol. 5, p. 359 (6), pi. 

 12, fig. 1, 1853. Faxon, Mem. Mus. Comp. Zool., vol. 18, p. 21, 

 1895. Rathbun, Bull. 152, U.S. Nat. Mus., p. 540, pi. 219; pi. 220, 

 fig. 5, and synonymy, 1930. Boone, Zoologica, vol. 8, no. 4, p. 223, 

 fig. 82, 1927. Sivertsen, Med. fra det Zool. Mus., Oslo, nr. 38, p. 

 17, 1933. 

 Type locality. — Mazatlan, Mexico. 

 Type. — Not extant. 



Range. — From Magdalena Bay, Lower California (Orcutt), to 

 Ecuador (Nobili) ; Galapagos Islands (Habel). 



Diagnosis. — Carapace less than one and one-half times as wide as 

 long, first three lateral teeth broad and shallow, last two small but well 

 defined. Front with 4 well-marked, equal lobules. A strong tooth at base 

 of dactyl of large chela. 



Material examined (45 specimens from 19 stations). — 

 11-32. Conway Bay, Indefatigable Island, shore, Jan. 12, 1932, 1 



male. 

 27-33. Gardner Bay, Hood Island, shore, Jan. 25, 1933, 2 males, 1 



female. 

 30-33. Gardner Bay, Hood Island, shore, Jan. 26, 1933, 1 male, 3 



females (1 ovig.). 

 42-33. Opposite Kicker Rock, Chatham Island, Jan. 31, 1933, 1 



female. 

 49-33. Academy Bay, Indefatigable Island, shore, Feb. 3, 1933, 1 



male. 

 52-33. Academy Bay, Indefatigable Island, shore, Feb. 4, 1933, 2 



males, 1 female. 

 56-33. Flamingo Bay, Charles Island, shore, Feb. 5, 1933, 6 males, 

 2 females. 



