116 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 92 
throughout. It differs also from L. minuseula, from Hawaii (see 
below), in having smaller, slenderer proportions, and the anterior 
parapodial lobes are here acutely pointed, not rounded. 
LUMBRINERIS MINUSCULA Moore 
FIGURE 12, e, f 
Lumbriconereis minuta TREADWELL, 1906, p. 1171 (U.S.N.M. No. 5215; off 
Hawaii). 
Lumbrineris minuscula Moore, 1911, p. 294. 
A single fragment of 87 segments measures 20 mm. long. The 
head and some anterior segments (perhaps only a few), also the 
proboscideal armature, are missing. The first 16 segments on this 
piece are provided with limbate setae and composite hooks (fig. 
12, e); in the next segments there are, in addition to superior and 
inferior limbate setae, two composite hooks (fig. 12, 7) and one 
simple hook. More posteriorly only simple hooks and limbate setae 
are present. A posterior end of indeterminable length is missing, 
but the last segments present have a few (one or two) delicate 
limbate setae and several (3 or 4) hooded hooks. The maxillary 
apparatus (now missing) was illustrated by a figure that does not 
bring out the details; maxilla II was described with five teeth right and 
four left; the other maxillary plates are not distinguishable. The 
setae, originally thought to be of only two kinds, are actually of 
three kinds, composite hooks, simple hooks, and limbate setae. This 
error led Moore (1911, p. 294) to attribute some specimens from 
Catalina Island to this species (see below). 
L. minuscula Moore (1911, p. 294) was proposed to replace Z. 
minuta Treadwell (not Theél). In addition, a description was given 
for specimens from Catalina Island, which differ from the type of 
L. minuscula in several important respects and for which the new 
name LZ. moorei (see below) is proposed. 
L. minuscula has affinities with Z. japonica Marenzeller; both have 
composite setae in anterior segments. In ZL. minuscula limbate setae 
are present through at least 80 segments, in L. japonica they are 
absent after about 34 segments; in Z. minuscula anterior parapodia 
have a broadly rounded, auricular postsetal lobe (fig. 12, e), in Z. 
japonica this lobe is compressed, conical. 
LUMBRINERIS MOORETI, new species 
Fieurn 12, a, b, g 
Lumbriconerets minuscula Moors, 1911, p. 294 (in part) (U.S.N.M. No. 17403; 
off Catalina Island, in 1,350—2,182 fathoms). 
There are two fragmentary specimens, differing greatly from the 
type of Z. minuscula (see above) with which these were at first com- 
