40 BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



third joint is prolonged distalh' into a curved process furnished with 

 five or six long hairs on the convex margin; the sixth joint, with the 

 seventh, constituting a slender chela; no molar tubercles; curved mar- 

 gin of 'thumb' of sixth joint with a row of slender bristles; a row 

 of blunt spines on cutting edge. 



'The second pair of limbs have the joints stout and furnished with 

 strong spines. The second joint or basis has five or six stout, curved 

 spines on its outer margin. It is longer than the other joints. The 

 terminal claw is flanked on each side by a strong spine attached to sixth 

 joint. There appear to be but five free joints to this and the follow- 

 ing limbs, but this appearance may be due to defects in the mounting; 

 following pairs of limbs more slender, the last pair having a second 

 joint almost as long as all the rest, and with an oblique row of small 

 spines near distal end of posterior face of sixth joint. 



"There are five pairs of pleopods with both branches one-jointed. 



"Uropods biramous, the inner ramus with about fifty joints; outer 

 ramus less than one-half as long, with about twenty-five joints. The 

 joints of both are of irregular length. 



"One specimen, female, from station 6079, 20 fathoms, 6 mm. by 

 1.4 mm." MOORE/' 



APSEUDES GRACILIS Norman and Stebbing. 



Apseudes gracilis NORMAN and STEBBING, Trans. Zool. Soc., Lond., XII, 1886, Pt. 

 4, pp. 95-97, pi. xx. HANSEN, Viden&kabelige Meddelelser fra den natur- 

 historiske Forening i Kj0benhavn, 1887-1888, p. 178. RICHARDSON, Ameri- 

 can Naturalist, XXXIV, 1900, p. 212; Proc. U. S. Nat. Mus., XXIII, 1901, 

 p. 505. 



Localities. Davis Strait, latitude 59 10' north, longitude 50 25' 

 west; also in the North Atlantic. 



Depth. 1,750 fathoms. 



"The carapace has the frontal margin produced into a long slender 

 acute rostrum, which is half as long as the basal joint of the upper 

 antennae, and has a bulbous process on each side at its origin; ocular 

 processes or alas having their outer sides prolonged into an acute spine- 

 like termination projecting forward and slightly outward. On each 

 side of the carapace, at the junction of the first coalesced segment of 

 the peraeon with the cephalon, there is another pair of spinous proc- 

 esses closely assimilating in form to those of the alae just described. 



"The peneon has the segments remarkably long, more produced 

 than in any other known species, especially the last four; each segment 

 bears a pair of lateral acute spinous processes, and in front of these a 

 pair of small tubercles, while on the ventral surface there is a large 

 acute curved spine near the hinder margin, and near the front margin 

 a small tubercle bearing two or three minute cilia. The epistoma is 

 tumid, arched, carinate, and armed with a small spine near the mouth. 



"Bull. U. 8. Fish Commission, XX, Pt. 2, 1902, pp. 164-165. 



