76 University of California Publications in Zoology [Vol. 23 



Crangon barbara (Lockington) 



Alplieus clamator Kingsley (not Lockington), Bull. TJ. 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 Coutiere 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 calif orniensis (Holmes) 



Alpheus calif orniensis Holmes, Occas. Papers Calif. Acad. Sci., 7, 186, pi. 2, 

 fig. 42, pi. 3, figs. 43, 44, 1900. 



Fig. 52. Crangon calif orniensis ; 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 sulcus 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 Locality. — San Pedro, California. 



Distribution. — Also found at Magdalena Bay, Lower California, by C. R. 

 Orcutt. 



Crangon equidactylus (Lockington) 



Alpheus equidactylus Lockington, Proc. Calif. Acad. Sci., 7, 35, 1877; 

 Holmes, Occas. Papers Calif. Acad. Sci., 7, 187, pi. 3, figs. 45, 46, 1900; 

 Rathbun, H. A. E., 10, 108, 1904. 



a b 



Fig. 53. Crangon equidactylus; a, large hand; b, small hand (after Holmes). 



