REPORT ON THE PYCNOGONIDA. 51 
I wish to point out as a very interesting peculiarity of this species, that I observed a 
female specimen with highly developed ovaries in the fourth joint of its legs, which bears 
a distinct egg-mass on its ovigerous leg. The shape of the ovigerous leg is almost 
identical with that of a male. In other respects it looks quite like a female. 
Habitat.—This species seems to abound in the neighbourhood of Kerguelen Island. 
Miers (oe. cit., p. 213) only says that several specimens were collected at this island, but 
Bohm (loc. cit., p. 177) mentions specimens collected in Royal Sound, Irish Bay, and 
Great Whale Bay, from a depth of 15 to 65 fathoms. 
The Challenger brought specimens home from Station 149. J anuary 17,1874. Lat. 
47° 40’S., long. 70° 20’ E. Off Royal Sound. Depth, 25 fathoms. 
January 20,1874. Royal Sound. Depth, 28 fathoms. 
January 29,1874. Off Christmas Harbour. Depth, 120 fathoms. 
Observations.—After a close examination of the numerous specimens of this Pycno- 
gonid, I at first believed it to be different from the N’ ymphon horridum of Bohm, so I gave 
it the name Nymphon hispidum, which name is still to be found on Plates IV. and 
V. of this Report. After a renewed examination, and having acquired, I believe, by 
continuous study some knowledge of the relative value of characteristic marks, I think 
there can be no doubt about the identity of Béhm’s species and the specimens brought 
home by the Challenger. Unfortunately the two plates are printed off, and thus bear 
the name originally proposed by me. 
However, the name proposed by Béhm ought also to give place to another, viz, 
that of Miers. The description of Mr Miers originally published was too short and insuf- 
ficient, therefore Mr Bohm was quite justified in considering his specimens as distinct 
and proposing for them the new name Nymphon horridum. This happened in 1879. 
In the same year Mr Miers published a more detailed description with figures, which 
made it certain that Bohm’s, Miers’, and my specimens belonged to the same species ; this 
must, I think, bear the name originally applied to it by Mr Miers. - 
The latest description of this author, however, is by no means exhaustive ; his figures 
are very small, and when he says that the number of claws at the end of the leg is two, 
it is evident that he has not studied the details with a high enough power. 
Bohm’s description and drawings are much superior to those of Miers ; they differ 
from mine in the following respects :—On the dorsal surface of the body he figures rows of 
hairs between the different segments, whereas I observed star-like groups of hairs. He 
gives the mandibles a much more elongated form, and furnishes the claws with very 
irregular teeth. On the legs, Bohm says, the hairs and spines are arranged in regular 
rows, whereas I failed to observe this regularity. The two tarsal joints as figured by 
Bohm are nearly of the same length, but I always observed that the second was much 
longer than the first. Minor differences in the form of the eyes, distribution of the hairs, 
&c., it is unnecessary to discuss. The more important ones which I have pointed out 
