Boone, Crustacea, Cruises of ''Eagle" and "Ara," 1921-28 47 



propodus being almost equal to its width ; the right fingers are slightly 

 shorter than the palm and are sharply deflected, each bears two longi- 

 tudinal converging ridges on its outer face, the cutting edges are regu- 

 larly crenulate and the right chela has a small basal gape. The left 

 cheliped has the palm only two-thirds as wide as long, moderately 

 convex and the fingers greatly elongated and curved being one and 

 one-half times as long as the palm, the cutting edges dentate, no gape. 



The first and second ambulatories are greatly elongated, subequal, 

 each with the meral joint slightly exceeding the maximum width of 

 the carapace, of moderate width, densely setose and with a line of 

 spines paralleling the anterior lateral margin; the carpus and pro- 

 podus together are equal in length to the merus, but are distinctly 

 narrower; the carpus comprises one-third of this length and the pro- 

 podus, two-thirds ; the dactyl is about as long as the propodus and is 

 very curved and slightly twisted; both faces are marked with longi- 

 tudinal carinae separated by deep grooves. 



The third and fourth pairs of legs are subdorsal in position and 

 are much smaller than the preceding pairs. The third legs if straight- 

 ened would scarcely reach to the tip of the merus of the second legs. 

 The meral joint of the third legs is the longest joint, the carpus is 

 three-fourths as long as the merus; the propodus is very short and 

 bears at its posterior basal angle a node-like tooth upon which the 

 tip of the short, curved, acuminate dactyl closes. The fourth legs are 

 more dorsal in position than the third which they resemble in all de- 

 tails of structure, except that they are much frailer and only two- 

 thirds as long. 



Synonymy: Cancer lanatus Linne, Syt. Nat., 12 ed., t. II, p. 1044, 

 1766. 



Dorippe lanata Bosc, Hist. Nat. des Crust., 1. 1, p. 208, 1802. — Heller, 

 Crust. Sudl. Europa, p. 138, pi. 4, fig. 9, 1863 (and synonymy). 

 — ^A. Milne Edwards and Bouvier, Exped. Sci. du TravaiUeur et 

 du Talisman, Crust. Decapodes, 1900, p. 33. — 0. Pesta, Die De- 

 eapodenfauna der Adria, 1918, p. 286 (and major synonymy). — 

 Stebbing, Ann. South African Mus., vol. 6, p. 339, 1908-10.— 

 Ihle, J. E. W., Mon. Siboga Exped., 39b-l, p. 156, 1916. 



Cancer facchino Herbst, Naturg. Krabben u. Krebse, t. I, pi. 2, fig. 68, 

 1783. 



