296 



BULLETIN 129^ UNITED STATES NATIONAL MUSEUM 



and is apparently that type-specimen of H. camptacantha which was 

 measured by Stimpson, as given above. 



Patos Island, anchorage; 4.5 fathoms; May 23, 1921; Fred Baker, 

 California Academy Expedition; one young female (California Acad.) , 

 damaged, and having a soft, hairy shell. It belongs, however, to 

 the group having the antennal spine long and the rostral spines long, 

 regularly tapering and divergent. The legs are transversely banded 

 with an orange color when preserved; the propodal articles are longer 

 and slenderer than in the young of parvifrons Randall. 



HERBSTIA PARVIFRONS (RandaU) 



Plate 106 



Herbstia parvifrons Randall, Journ. Acad. Nat. Sci. Philadelphia, vol. 8, 

 1839, p. 107 (type-locality, western America; holotype in Mus. Phila. 

 Acad. Nat. Sci.). — Holmes, Occas. Papers California Acad. Sci., vol. 7, 

 1900, p. 38, and synonymy. 



Rhodia parvifrons Rathbun, Amer. Nat., vol. 34, 1900, p. 511; not syn- 

 onymy. — Weymouth, Leland Stanford Jr. Univ. Publ., Univ. Ser. No. 4, 

 1910, p. 34, pi. 7, fig. 18; not all synonymy. 



Herbstia (Herbstiella) camptacantha Holmes, Occas. Papers California 

 Acad. Sci., vol. 7, 1900, p. 37 (part). — Rathbun (not Stimpson), Proc. 

 U. S. Nat. Mus., vol. 16, 1893, p. 79 (part). 



Diagnosis. — Palm armed with spines or spinules at the proximal 

 end of its upper margin. Two spines on outer margin of basal 



antennal article, including 

 that at anterior angle; first 

 movable article falling short 

 of tip of rostrum. 



Description. — The descrip- 

 tion given by Stimpson for 

 Herbstiella camptacantha ap- 

 plies very well to the Cali- 

 fornian species here called 

 parvifrons except that in place 

 of two of the dorsal branchial 

 tubercles there are spines; 

 spines of arm more numerous 

 than in camptacantha and in 

 two adjacent and irregular 

 rows, 12 or 13 in the outer- 

 most row, 5 or 6 in the other 

 row, 2 spines on inner margin 

 just distad of the middle; 

 Fig. 99.— Herbstia parvifrons (32962), maxilliped.x 6.4 palm not Unarmed but fur- 

 nished on the proximal two- 

 fifths of the upper margin with 5 or 6 spines, present not only in the 

 adult but as spinules, fewer in number, in the young, down to a 



