Eunice murrayi McIntosh 1885

Eunice murrayi McIntosh, 1885

Eunice murrayi McIntosh, 1885:288–289, figs. 48, 49, pl. 39: figs. 7, 8, pl.20A: figs. 19, 20.

MATERIAL EXAMINED.—Holotype, BM(NH) ZK 1885.12.1.201, Simon's Bay, Cape of Good Hope, dredged, 33 m, Dec 1873.

DESCRIPTION.—Holotype complete with 101 setigers; total length approximately 37 mm; maximal width 4 mm; length through setiger 10, 7 mm. Anal cirri long, articulated.

Prostomium (Figure 76j) distinctly shorter and narrower than peristomium, as deep as of peristomium. Prostomial lobes frontally rounded, dorsally flattened; median sulcus shallow. Eyes not seen. Antennae in a horseshoe, evenly spaced, similar in thickness. Ceratophores ring-shaped in all antennae, without articulations. Ceratostyles tapering, with moniliform articulations; complete left A-II with 8 articulations; incomplete A-III with 10 articulations. A-I to setiger 1; A-II to setiger 3; incomplete A-III currently to setiger 3; however, apparently originally longer than A-II. Peristomium cylindrical. Separation between rings distinct dorsally and ventrally; anterior ring of total peristomial length. Peristomial cirri to frontal margin of peristomium, with 3 articulations of which basal ones more than half of total cirral length.

Maxillary formula 1+1, 5+5, 5+0, 5+8, and 1+1. Mx III long, positioned directly behind left Mx II.

Branchiae present, pectinate, distinctly longer than notopodial cirri, not reduced in mid-body region, erect. Branchiae from setiger 5 to setiger 28. Branchiae present to near posterior end, present on less than 55% of total number of setigers. Two first and last 5 branchiae single filaments, maximum; 9 filaments at about seliger 10. Branchial stems strong, stiff. Filaments arranged in a neat comb, relatively short.

All neuropodial acicular lobes distally truncate; aciculae emerging at midline. All pre- and postsetal lobes low, transverse folds. Prebranchial ventral cirri digitiform. Between setigers 5 and 30 ventral cirri basally moderately inflated. Inflated bases ovate; narrow tips digitiform. Posterior ventral cirri increasingly digitiform, increasing in length, by setiger 50 as long and prominent as notopodial cirri. All notopodial cirri medially inflated, similar in length. Prebranchial cirri with 3 or 4 articulations; articulations increasingly indistinct posteriorly; most notopodial cirri in branchial region with single articulation; postbranchial notopodial cirri without articulations.

Nearly all setae broken. Shape of limbate and pectinate setae and aciculae currently indeterminable. McIntosh (1885, pl. 20A: fig. 19) illustrated shafts of compound falcigers as mildly inflated. Appendage large with both teeth well developed, distinctly curved. Guards blunt; mucros absent. Pseudocompound falcigers and compound spinigers absent. Aciculae yellow, distally pointed; cross-sections round. Separation between core and sheath indistinct in both aciculae and subacicular hooks. Subacicular hooks yellow, tridentate with teeth in a crest. Hooks first present from setiger 17.

UNKNOWN MORPHOLOGICAL FEATURES.—Many setal features; 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: 4, 6, 13, 14, 23, 65–68, 81, 82.

ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—None.