134 
liev. A. M. Norman on two 
certain clavate bodies, which were a sore puzzle. At one 
time I thought they must be parasitical animals ; but then they 
seemed to be inseparable from the body of the Gephyrean ; 
and after much doubt and consultation with my friend Mr. 
Alder, they were regarded as part and parcel of the animal to 
which they were attached, and presumed to be analogous to 
the tail of Priapulus. They were figured as carefully as 
possible from the spirit-preserved specimens, in order that any 
doubt there might be about them might hereafter be cleared up, 
and were thus described :—“ The extremity is furnished with 
from twenty to thirty club-shaped tentacular appendages. 
These tentacular appendages are of peculiar construction. 
The longest and most fully expanded present the appearance 
of fig. 2. The club is somewhat spathulate; and about the 
centre of the upper half is seen a small round aperture, appa¬ 
rently opening into the interior. Below this there are two pro¬ 
jecting processes, one of which is larger than the other ; and 
between the bases of these two processes is seen the rudiment 
of a third. Another state of the tentacles is shown in fig. 3, 
which is taken from one of the shorter tentacles—shorter 
because less expanded, or, more probably, less developed. 
Here there is no sign of the central opening; but the head 
seems to contain several pear-shaped bodies, one of which has 
a blackish central spot. On subjecting this tentacle to the 
compressorium, these pear-shaped bodies escaped, and appeared 
to be composed entirely of granular matter enclosed in thin 
sacs.” 
At this time Loxosoma was unknown; but in 1862 Kefer- 
stein described that remarkable parasitic genus of Polyzoa, 
having found the type species on Capitella , Blainville (a 
genus of Annelida), on the Normandy coast. Since that time 
much attention has been directed to the genus. Last year 
Carl Vogt described ( l . c .) a new form ; and his paper was 
translated by Mr. Hincks, and published in the Quart. Journ. 
Micr. Sci. The moment I saw the plate which illustrates this 
paper it was obvious that Vogt’s Loxosoma phascolosomatum 
was the final solution of my puzzling tentaculiform appen¬ 
dages of 1858 ; and I at once Avrote to Mr. Hincks and told him 
that he might add this species of Loxosoma to the British 
fauna in his forthcoming work on the Polyzoa. M. Barrois 
has arrived at the same conclusion. In his admirable and 
deeply interesting 1 Memoire sur l’embryologie des Bryozo- 
aires ’ he notices a Loxosoma which he had found abundantly 
at Boskoff, and adds, “ c’est peut-etre la meme que celle qui 
a et£ ddcrite par Norman, comme organe appendiculaire d’un 
siponcle qu’il nomme Strephenterus claviger ] on doit certaine- 
