CATAPAGURUS DIOMEDE®. 57 
runs from the carpal articulation to the base of the immovable finger ; scat- 
tered hairs are found on the chela; they are most numerous near the tips of 
the fingers. 
The ambulatory legs are pretty smooth, with rounded margins. The 
dactylus of the first pair is equal to the propodite in length, while the dacty- 
lus of the second pair exceeds the propodite. The dactyli of both pairs are 
furnished with stiff setae, most conspicuous along the lower margin ; a curved, 
sharp nail tips the dactyli. At the distal end of the upper margin of the 
carpi a small, sharp tooth is seen projecting over the proximal part of the 
propodite. 
The fourth pair of legs is sub-chelate, the rasp upon the propodite is 
formed by a single series of scales. The propodite of the fifth pair of legs 
is furnished with a tuft of long setae and a broad rasp whose posterior margin 
is concave. 
The left side of the abdomen carries three two-branched appendages. 
The telson is divided by a broad notch into two somewhat unsymmetrical 
lobes; the posterior margin is spinulose. 
Length of body, 23.5 mm.; length of carapace, 9 mm. 
Station 3368. 66 fathoms. 2 males, without carcinoecia. 
These specimens agree closely with types of H. calforniensis in the U. 8. 
National Museum from Catalina Harbor, Cal., 30 to 60 fathoms, 
MM. Milne Edwards and Bouvier have lately described and figured a 
Eupagurus from Sand Key, Fla., under the name Z. snuthu.* Since this name 
had been previously used by Mr. Benedict for another species of Hupagurus 
from the Gulf of California,t it becomes necessary to change the name of 
Milne Edwards and Bouvier’s species, which may be called Hupagurus bouvvert. 
CATAPAGURUS A. M. Epw. 
Bull. Mus. Comp. Zo6l., VIII. 46, 1880. 
Catapagurus diomedez Fax. 
Plate XII, Fig. 2-2". 
Bull. Mus. Comp. Zool., XXIV. 171, 1893. 
The carapace is smooth and naked, and divided into an anterior and pos- 
terior section by the cervical groove. The anterior margin projects slightly 
* Mem. Mus. Comp. Zodl., Vol. XIV., No. 3, p. 140, Plate X. Fig. 1-12, 1898. 
+ Proc. U. S. Nat. Mus., XV. 4, 1892. 
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