152 BULLETIN OF THE 



first abdominal segment is furnished with a bidentate tubercle. Legs covered 

 with numerous spiny tubercles ; the meri armed with three or more prominent 

 spines at the distal end. Chela long and slender, the tubercles of the hand 

 smaller than on the other parts of the legs ; fingers nearly smooth. A deep 

 pit at base of movable finger. 



Length from base of rostrum to posterior margin of carapace, 112 mm. ; 

 breadth, 113.5 mm; length of rostrum, 22 mm.; length of rostral horns, 

 11 mm.; breadth between eyebrows, 38 mm. ; length of cheliped, 156 mm. 



Station 3355. 182 fathoms. 1 male. 



Family PARTHENOPID-SI. 



Latnbrus hassleri, sp. nov. 



This is the Pacific coast representative of Lambrus pourtalesii Stimps. 

 (Z. verrillii Smith) of the east coast of North America. It difi'ers from the 

 latter species as follows : the carapace is broader in proportion to its length ; 

 the branchial regions are more expanded and inflated, the inflation extending 

 farther in toward the cardiac area so as to involve the oblique row of small 

 tubercles ; that is to say, this row of tubercles, which in L. pourtalesii lies low 

 down in the fossa between the branchial and cardiac regions, is raised up, in 

 L. hassleri, on the swell of the branchial region. The spines on the edges of 

 the chelipeds, moreover, are not laciniated to such a degree as in L. pourtalesii. 



Length of a female specimen, 27 mm. ; breadth, including lateral teeth, 

 38 mm. 



Station 3368. 66 fathoms. 1 female. 



" 3427. 80 " 1 male, 1 female. 



This species was previously obtained during the voj^age of the " Hassler " at 

 Magdalena Bay, Lower California, August 14, 1872. The specimens then 

 obtained were apparently picked up dead on the shore. 



Family CANCRID^. 



Xanthodes sulcatus, sp. nov. 



Carapace granulated, granulation heaviest on the lower surface, and near the 

 borders of the upper surface. Deeply impressed grooves separate the gastric 

 from the branchial regions, and the mesogastric from the lateral gastric lobes. 

 The groove which continues in the median line to the front, anteriorly to the 

 mesogastric lobe, is crossed a short distance behind the frontal margin by a 

 transverse groove, which meets on each side another groove running parallel to 

 the upper margin of the orbit. In this way there are marked off" a pair of 

 frontal and a pair of orlntal areolets. The frontal margin is nearly straight, 



