76 University of California Publications in Zoology [Vou 28 
Crangon barbara (Lockington) 
Alpheus clamator Kingsley (not Lockington), Bull. U. S. Geol. Surv., 4, 
no. 1, p. 197, 1878. 
Alpheus barbara Lockington, Ann. Mag. Nat. Hist. (5), 1, 471, 1878; 
Rathbun, H. A. E., 10, 108, 1904. 
Characters.—Basal joint of antennae without a spine. Small hand with a 
superior spine above articulation of dactyl, no external spine. Basal spine of 
antennules short, stout, not reaching second joint of peduncle. Carpus of second 
pair of legs with first and second segments equal. 
Type Locality——Santa Barbara, California. 
Remarks.—According to Coutiére probably the same as A. macrocheles (Hail- 
stone) (Rathbun). Kingsley did not give any measurements of his type, which 
was an imperfect specimen. The species has not been seen since the original 
description. 
Crangon californiensis (Holmes) 
Alpheus californiensis Holmes, Oceas. Papers Calif. Acad. Sci., 7, 186, pl. 2, 
fig. 42, pl. 3, figs. 48, 44, 1900. 
Up be ihe 
Fig. 52. Crangon californiensis; a, large hand; b, dorsal view of anterior por- 
tion of carapace; c, small hand (after Holmes). 
Characters—Front unispinose; rostrum present, but orbital hoods without 
spines; a deep suleus between eye-shields and rostrum. Small hand smooth. 
Basal spine of antennules broadly ovate, acuminate, scarcely reaching tip of first 
joint of peduncle. Carpus of second pair of legs with first segment long, exceed- 
ing second. 
Dimensions.—Type: length 37 mm.; length of carapace 12.5 mm., of large 
hand 15 mm., of small hand 9 mm. 
Type Localitya—San Pedro, California. 
Distribution—Also found at Magdalena Bay, Lower California, by C. R. 
Orcutt. 
Crangon equidactylus (Lockington) 
Alpheus equidactylus Lockington, Proce. Calif. Acad. Sei., 7, 35, 1877; 
Holmes, Oceas. Papers Calif. Acad. Sci., 7, 187, pl. 3, figs. 45, 46, 1900; 
Rathbun, H. A. E., 10, 108, 1904. 
ea) 
a b 
Fig. 53. Crangon equidactylus; a, large hand; b, small hand (after Holmes). 
