Eunice complanata Grube 1877

Eunice complanata Grube, 1877

Eunice complanata Grube, 1877:529–530.—Fauchald, 1986:246–247.

MATERIAL EXAMINED.—Holotype, ZMB, type 880, Timor, Atapupa, coral reef and Salawatti, coral reef.

COMMENTS ON MATERIAL EXAMINED.—The type is now completely dry and clearly has been dry for some time.

DESCRIPTION.—Holotype with about 100 setigers; reported length, 72 mm, probably correct.

Prostomium completely shrunken. Black eyes present between bases of A-I and A-II. All antennae apparently outreaching tip of prostomium, without obvious articulations. Separation between peristomial rings distinct dorsally and ventrally; anterior ring more than 5/6 of total peristomial length. Peristomial cirri at least as long as antennae, reaching well beyond frontal margin of peristomium, without obvious articulations.

Maxillary formula 1+1, 5+5, 5+0, 4+8, and 1+1. Mx III forming distal arc with short, curved Mx IV. Mx VI missing.

Branchiae present, pectinate, distinctly longer than notopodial cirri, not reduced in mid-body region. Branchiae from setiger 19, well developed on last setigers present (setiger 100). First 2 pairs possibly with single filaments only; all other branchiae pectinate; maximum 6 filaments. Branchial stems strong, erect.

Ventral cirri apparently basally inflated in some anteromedial setigers; narrow tips tapering.

Limbate and pectinate setae present. Appendages of compound hooks bidentate. Guards without mucros. Aciculae and subacicular hooks dark brown. Aciculae tapering to blunt tips; cross-section of aciculae round. Subacicular hooks bidentate; first present from setiger 28, rather thick in relation to aciculae.

UNKNOWN MORPHOLOGICAL FEATURES.—Most prostomial and peristomial features, jaw structure; most parapodial structures.

EXPECTED STATES OF UNKNOWN MORPHOLOGICAL FEATURES.—Species too poorly known to make predictions.

CHARACTERS USED IN PREPARATION OF KEY NOT SCORED.—Inappropriate Characters: 22, 56. Unknown Characters: 3, 12, 15–20, 23, 24, 28, 34, 36–38, 40, 42–52, 54, 57–68, 74, 78.

ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—37,1; 38,1.