689 
of Edinburgh , Session 1881-82. 
a little within the borders, the second and third segments angled at 
the hinder corner, and the third also produced into a small spine- 
formed point, and the posterior margin not waved but finely crenated. 
Antennae of both pairs very long, the upper pair as long as the entire 
animal, peduncles of both pairs remarkably round and smooth, 
peduncle of the upper pair reaching nearly to the end of the penulti- 
mate joint of that of the lower; the first joint large, round, and 
smooth, with two distal spines on the lower side ; the second joint 
nearly as long as, but only half the thickness of, the first; the third very 
small. Peduncle of the lower antennae having the two distal joints 
subequal in length. All the legs slenderly built, the two gnathopods 
small and slender, the hand shorter than the wrist, subquadrate, 
slightly widening from the base to the palm, which is only slightly 
oblique. Last uropods of great length, more than equal the combined 
length of the three posterior segments of the pleon, the peduncle not 
quite reaching to the end of the telson, rounded, smooth, with two 
distal spines above, branches narrow, round, smooth, margined with 
spinules, and about twice as long as the peduncle. Telson lanceolate, 
hollowed above, quite smooth, and not furnished with any spines, 
apex tridentate, the centre tooth large, the laterals small, the 
tridentate apex is formed by the telson itself (not by articulated 
spines). 
Length 1 inch. Station 8, 540 fathoms. 
This species comes very near to Halirages quadridentatus, G. 0. 
Sars,* but differs from his description in the form of the epimera of 
the first segment of pereion, and in the third segment of pleon. Sars 
does not describe the telson, which is very characteristic. 
Report on the Pycnogonida. By Dr. P. P. C. Hoek. 
From Station 3 there is one male Pycnogonum littorale , Strom, 
spec. 
From Station 5 two specimens of JSFymphon stroemii , Kroyer. 
From Station 7 two specimens of the same species, and still ten 
other individuals were dredged at Station 8. 
* “ Prodromus description^ Crustaceorum et Pycnogonidarum, quse in 
expeditione Norvegica, anno 1876, observavit G. 0. Sars,” Archiv. for Mathc- 
matik og Naturmdenskab, 1876, p. 357. 
