IDENTITY OF SOME MARINE ANNELIDS—HARTMAN 107 
The first elytra are broadly ellipsoid in outline, imbricated medially ; 
the margin is smooth except for a sparse fringe of short papillae. The 
second and third elytra are deeply excavate at their anterior edge and 
have a few short papillae at the outer margin. The fourth has a nearly 
straight, anterior margin and the lateral papillae a little longer. More 
posteriorly the elytra increase in size somewhat, are longer than wide, 
their anterior edge very slightly excavate, their outer lateral edge with 
a few slender fringes in a single row. 
Notosetae are simple, delicately transversely serrated. Neuropodia 
have three or four superior, simple, spinose setae, more numerous, 
stouter, composite setae in the circumacicular fascicle, and similar, 
though slenderer, setae in the linear series. Composite setae have 
a shaft that is slightly thickened distally, with a few coarse spines 
but no transverse serrations; the appendage is long and slender, 
tapering to a fine point, without canaliculae. There are no falciger- 
ous, composite setae, and none with bifid tip, such as characterize the 
genus Sthenelais; they differ from typical setae of Zeanira only in 
that the appendage is not canaliculate. 
Neuropodia of typical parapodia lack parapodial fringe except for 
two or three at the dorsal edge. Notopodia have a few longer 
papillae at the dorsoanterior distal edge. The ventral surface of 
the body is quite smooth; ventral cirri lack accessory fringe. Seg- 
ments three to eight have a small clavate papilla on the ventral 
face of the parapodium, a short distance from its origin at the body 
wall. This species is referred to Leanira because the composite 
setae terminate distally in a point; falcigerous setae are lacking, 
and segments two and three are more or less fused dorsally. 
Genus STHENELAIS Kinberg 
STHENELAIS ARTICULATA Kinberg 
Sthenelais articulata KInBrRG, 1855, p. 387; 1910, p. 28. 
Sthenelais tertiaglabra Moorr, 1910, p. 395 (U.S.N.M. No. 17108; southern 
California). 
Sthenelais hancocki HarTMAN, 19389, p. 65. 
The first parapodium is about as long as the second but somewhat 
stouter and directed straight forward. Its base is proportionately 
long. In addition to a long dorsal cirrus and a shorter ventral 
cirrus, it has paired prostomial antennae, inserted near the inner 
dorsal base of the superiormost setae, about two-thirds as long as 
the ventral cirrus, terminating in a small, elongate knob. Segments 
three to five have a small, clavate, accessory, ventral cirrus, inserted 
about midway between the main ventral cirrus and the body wall. 
The ventral surface is smooth. Parapodial lobes practically lack 
fringing papillae except in the first few segments, where they are 
