322 ANNELIDA FROM BERMUDA. 
Fam. OPHELITID A. 
OPHELINA Orsted. 
Grube, in his Annulata Semperiana (p. 193), arranges the genera of 
this family in the following manner: 
Ophelina ORSTED ; type, Ammotrypanne aulogaster RATHKE. 
Ammotrypane RATHKE; type, Ammotrypane limacina RATHKE. 
Ophelia SAVIGNY ; type, Ophelia bicornis SAVIGNY. 
This arrangement seems to be correct, and accordingly the following 
species has been referred to Ophelina. 
OPHELINA MACULATA 1. sp. 
(Plate XI, Figs. 54, 55.) 
Head as long as the first three segments taken together, terminating 
in a delicate, elongated, conical process, which is set off by a shallow con- 
striction. 
There are three eyes, forming a transverse series, near the posterior 
margin of the head, very small, the middle one largest. The first seg- 
ment is quite short; from the first to the seventh the segments increase 
gradually in length; after the seventh they are of uniform length, ex- 
cept the last four, which are shorter. _ 
The outline of the feet and relative length of the sete are shown in 
Figs. 54, 55. 
The branchie begin on the second segment; on all our specimens 
there are 24 pairs of branchiz, with one exception, where there are 24 on 
one side, 25 on the other, leaving three non-branchiated setigerous seg- 
ments. Itis possible that the branchie have been lost from some or 
all of these segments, aS we have but few specimens, and in all the pos- 
terior segments are somewhat injured. 
The branchie are densely ciliated. 
On the seventh segment a circular black spot appears on the side of 
the segments, close to the origin of the branchiz. These spots are 
found on eleven segments; they then become elongated, narrow, and 
presently disappear. 
The general color (in alcohol) is pearl-gray. In every case the anal 
segment is too much injured to admit of determining the number of the 
papille. A few of them are bi-furcate at extremity. 
Length, 19™™. 
Width, 27”. 
