o56 Puget Sound Marine Sta. Pub. Vol. 1, No. 30 



calcareous molar-like teeth. In the smaller hand the palm is not so strongly- 

 inflated, the Angers are longer and straighter and more deeply excavated 

 within; the corneous tips are more extensive and the calcareous teeth are 

 smaller and more numerous. Ambulatory legs spiny, somewhat com- 

 pressed ; dactjds about two-thirds the length of the propodi. Abdomen 

 short, broad, and soft, spines not so large as on the carapace ; on the 

 basal segment there is a median plate and two wide lateral ones ; the 

 plate on the penultimate segment is oblong; the last one is small, rounded, 

 and about as long as wide. Length of carapace from tip of rostrum, 58 

 mm.; width of carapace, 58 mm." (Holmes, Occas. Papers of Calif. Acad. 

 ScL, VII., pp. 120-121.) 



According to Arnold (Sea Beach at Ebb Tide), this form is a deep 

 water species and has been brought ashore at Monterey, California, by 

 fishermen who have found it in the stomachs of fishes. Miss Rathbun re- 

 ports it for Puget Sound. It ranges in depths up to 16 fathoms. 



Prof. O. B. Johnson of the University of Washington has left a 

 mounted specimen labeled "Friday Harbor" in the University Museum. 



Genus Lopholithodes 



KEY TO SPECIES 



A. Without foramen between chelipeds and first walking legs. 



1. L. mandtii 



AA. With foramen between chelipeds and first walking legs. 



2. L. foraminatus 



1. Lopholithodes mandtii Brandt. king crab (fig. 12) 



Echinocerus ciharus White; Ctenorhinus setimanus Gibbons; Echino- 

 cerus setimanus Stimpson. 



Rostrum of 1 large conical prong with 2 lateral spines arising above 

 at its base and 1 shorter one filling in the space between the lateral ones ; 

 all tipped with yellow. Antennules short and thick. Exopodites of anten- 

 nae triangular, covered with stout thorns. Eyestalks thickly beset with 

 spines. Carapace very rough, whole surface covered with tubercles of 

 various sizes; with 3 large cones just posterior to cardiac groove, 1 median, 

 2 lateral ; median region prominent ; posterior marginal line with two 

 large knobs which are posterior to and in line with the lateral ones on 

 the side of the cardiac groove. Chelipeds short and stout ; upper margin 

 of hands armed with stout spines, more on the larger than the smaller 

 hand; carpus with large triangular very spiny projections extending in- 

 ward, Merus likewise with a prominent spur extending from inner mar- 

 gin. Walking legs covered with large projections dorsally, not spiny but 



