Eunice bipapillata Grube 1866

Eunice bipapillata Grube, 1866

Eunice bipapillata Grube, 1866a:64.

MATERIAL EXAMINED.—?Part of holotype, ZMB F1993b (marked Eunice magnifica, see comment below), Samoa, 3 parapodia.

COMMENTS ON MATERIAL EXAMINED.—G. Hartwich (in litt.) informed me that parapodial preparations of E. bipapillata and E. magnifica originally were stored together in the same vial; at one time they were split apart into two vials. The three parapodia referred to above agree with E. bipapillata and cannot agree with E. magnifica due to differences in the distribution of branchiae and the different maximal numbers of branchial filaments reported by Grube for the two species. Therefore, it is assumed that the labels for the two vials were confused. The description given below is a summary of observations on the parapodial preparations and the original description.

DESCRIPTION.—Type copper-colored with white band across setiger 4.

Ceratostyles articulated.

Branchiae (Figure 23d, h, i) present, pectinate, distinctly shorter than notopodial cirri, not reduced in mid-body region. Branchiae from setiger 4 to end of body. Branchiae present to near posterior end, present on more than 65% of total number of setigers. Up to 4 filaments from setiger 8 through setiger 18; paired filaments in setiger 77. Branchial stems short, tapering. Filaments digitiform.

Anterior acicular lobes (Figure 23d, e) asymmetrically truncate, with aciculae emerging above midline, becoming slightly triangular in posterior setigers (Figure 23i). All pre- and postsetal lobes low folds. Ventral cirri distinctly inflated basally in setigers 15 and 18; inflated base lost by setiger 77; narrow tip digitiform in all setigers. Ventral cirrus in setiger 77 digitiform. All notopodial cirri similar in size and shape; bases slightly inflated, tapering to blunt, digitiform tips, without articulations.

Limbate setae longer than other setae, slender, narrowly limbate, marginally serrated. Shafts of pectinate setae (Figure 23b, h) cylindrical, slender; blades slightly flared, flat. One marginal tooth longer than other teeth; up to 15 teeth. Shafts of compound falcigers (Figure 23a, c) tapering, marginally smooth; distal beak indistinct. Appendages short, relatively thickset with large heads, bidentate. Proximal teeth triangular, directed laterally or slightly distally, with distinct distal upturned tip; distal teeth longer than proximal teeth, tapering or blunt, directed obliquely distally. Guards asymmetrically bluntly pointed, without mucros. Pseudocompound falcigers and compound spinigers absent. Aciculae paired, black, tapering, straight, blunt-tipped; cross-section round. Subacicular hooks (Figure 23f) black, bidentate. Hooks absent in parapodia 15 and 17, present in parapodium 77. Proximal tooth thicker than distal tooth, but no longer, curved, directed laterally. Distal tooth nearly erect, tapering. Guard short, truncate.

UKNOWN MORPHOLOGICAL FEATURES.—All features associated with prostomium and peristomium; jaw structure; distribution of branchiae and subacicular hooks.

EXPECTED STATES OF UNKNOWN MORPHOLOGICAL FEATURES.—Antennae not reaching beyond peristomium; with cylindrical articulations or without articulations; digitiform. Mx III short; located in front of left Mx IV, forming part of a distal arc. Branchiae continued to far posterior setigers.

CHARACTERS USED IN PREPARATION OF KEY NOT SCORED.—Inappropriate Characters: 56, 58, 59. Unknown Characters: 1–20, 22–29, 33, 34, 36–40, 51, 52, 74, 78, 80–82.

ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—20,3; 22,2; 23,4; 33,2; 37,1; 38,1.