Eunice woodwardi Baird 1869

Eunice woodwardi Baird, 1869

Eunice woodwardi Baird, 1869:347–348.

MATERIAL EXAMINED.—Holotype, BM(NH) ZH 1863.8.19.13, La Coruña, Spain. H. Woodward, Esq. coll.

COMMENTS ON MATERIAL EXAMINED.—The holotype is poorly fixed and is now very soft. The illustration of the anterior end is somewhat idealized to avoid showing wrinkles caused by collapse of internal structure.

DESCRIPTION.—Holotype incomplete female with 59 setigers; length 49 mm; maximal width 5 mm at setiger 10; length through setiger 10, 7 mm. Body shape indeterminable.

Prostomium (Figure 117a) distinctly shorter than peristomium, about as wide as peristomium, as deep as of the peristomium. Prostomial lobes frontally rounded, dorsally flattened; median sulcus deep. Eyes not observed. Antennae in a horseshoe, with A-I isolated by a gap, similar in thickness. Ceratophores ring-shaped in all antennae, without articulations. Ceratostyles slender and digitiform, with up to 4 or 5 long, rather indistinct articulations in A-III. A-I to posterior peristomial ring; A-II to setiger 3; A-III to setiger 9 or 10. Peristomium cylindrical. Separation between rings distinct dorsally and ventrally; anterior ring about of total peristomial length. Peristomial cirri to frontal edge of peristomium, slender and digitiform, without articulations.

Jaws not examined.

Branchiae present, pectinate, distinctly longer than notopodial cirri, not reduced in mid-body region, erect. Branchiae from setiger 3 to setiger 39. Branchiae terminating well before posterior end, present on less than 55% of total number of setigers. All branchiae, except last 4 or 5 with 2 or more filaments maximum number of filaments 12 at about setiger 15. Branchial stems slender. Filaments longer than notopodial cirri in median branchiferous setigers.

Neuropodial acicular lobes truncate; aciculae emerging at midline. Pre- and postsetal lobes low, transverse folds. First 3 ventral cirri tapering and digitiform. Ventral cirri basally inflated from about setiger 4 through setiger 40, Inflated bases ovate; narrow tips tapering. Postbranchial ventral cirri slender and tapering. Prebranchial notopodial cirri medially inflated, becoming increasingly slender posteriorly and digitiform in postbranchial region. Notopodial cirri without articulations.

Limbate setae rather wide and marginally finely serrated.

Pectinate setae not observed. Shafts of compound falcigers (Figure 117b) tapering, marginally smooth. Appendages large with distinct heads, bidentate. Proximal teeth larger than distal teeth, triangular, directed slightly basally. Distal teeth curved. Guards symmetrically rounded with a distinct mucro, marginally serrated. Pseudocompound falcigers and compound spinigers absent. Aciculae (Figure 117c) paired, yellow, tapering and bent dorsally; cross-sections round. Separation between core and sheath indistinct in both aciculae and subacicular hooks. Subacicular hooks (Figure 117d) yellow, tridentate with teeth in a crest. Hooks first present from setiger 31, present in all setigers thereafter, most postbranchial setigers with 4 to 5 hooks in each segment. Hooks with large main fangs; distal pair of fangs in a crest.

UNKNOWN MORPHOLOGICAL FEATURES.—Jaw structure; pygidium and anal cirri.

EXPECTED STATES OF UNKNOWN MORPHOLOGICAL FEATURES.—None.

CHARACTERS USED IN PREPARATION OF KEY NOT SCORED.—Inappropriate Characters: 56, 58, 59. Unknown Characters: 1, 2, 13, 14, 63, 65–68.

ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—None.