194 THE ATLANTIC. [ CHAP. 111. 
five statute miles. The dredge came up at about half-past five 
o'clock, full of red mud of the same character as that brought 
up by the sounding-machine. Entangled about the mouth of 
the dredge and imbedded in the mud were many long cases of 
a tube-building annelid, evidently formed out of the gritty 
matter which occurs, though sparingly, in the clay. The tubes, 
with their contents, were handed over to Dr. von Willemoes- 
Suhm, who found the worms to belong to the family Ammo- 
charidze (Claparede and Malmgren), closely allied to the J/al- 
dania or Clymenide, all of which build tubes of sand or mud. 
The largest specimens dredged are 120 mm. in length by 2 
mm. in width. The head is rounded, with a lateral mouth. 
There is no trace of cephalic branchiz. The worm consists of 
only from 17 to 20 segments; the first few of these are very 
long—about 17 mm.; while those of the posterior portion of 
the body are only 5 mm. in length. The segments are not di-- 
vided from one another; but the tora wncinigert, which are oc- 
cupied by the hair-like sete, and the elevations bearing small 
uncini, indicate the beginning of a new segment. The num- 
ber of small hooks on the tore wneinigeri is very large. 
Claparéde has calculated that Owenia filiformis, to which 
this species is nearly allied, is provided with 150,000 hooks 
wherewith to attach itself in its tube. 
There is a pair of glands in each of the segments, from the 
second to the seventh. The position and structure of these 
have been described by Claparede in the genus Owenia, in 
which, however, there are only four pairs. Most of the speci- 
mens examined are females, and contain many eggs. 
There is no doubt that this annelid is closely allied to the 
genus Owena, but it differs from it in the absence of cephalic 
branchiee. Malmgren has, however, already proposed the name 
of Myriochele for a form in which this absence of branchiz oc- 
curs. The description of the northern form on which Malm- 
gren’s genus is founded is not at hand, so that it is impossible, 
