A Review of the Genus Eunice - Smithsonian Institution Libraries

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258 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY COMMENTS ON MATERIAL EXAMINED.—The holotype has been deeply dissected frontally; the illustration of the anterior end is a partial reconstruction, especially of the outline of the lower lip. DESCRIPTION.—Holotype incomplete female with 97 setigers; length 42 mm; maximal width 5.5 mm; length through setiger 10, 6 mm. Prostomium (Figure 85d) distinctly shorter and narrower than peristomium, less than 1 /2 as deep as peristomium. Prostomial lobes frontally rounded, dorsally inflated; median sulcus deep. Eyes not observed. Bases of antennae hidden below peristomial fold. Antennae in a horseshoe, evenly spaced, with A-III considerably heavier than other 4. Ceratophores ring-shaped in all antennae, without articulations. Ceratostyles tapering, A-I and A-II with 3 or 4 long cylindrical articulations along distal half. A-I to posterior peristomial ring; A-II to setiger 8; A-III incomplete. Peristomium cylindrical. Separation between rings distinct dorsally and ventrally; anterior ring 3 A of total peristomial length. Peristomial cirri to middle of anterior peristomial ring, without articulations. Maxillary formula 1+1, 7+7, 8+0, +8,1+1. Mx III long and located immediately behind left Mx II. Left Mx IV missing. Branchiae (Figure 85e) present, pectinate, distinctly shorter than notopodial cirri, not reduced in mid-body region, flexible. Branchiae from setiger 8 to end of fragment. First branchiae single filaments; maximum 5 filaments at setiger 15; most segments with 3 or 4 filaments; some with 5 even in last segments present. Branchial stems short, tapering. Filaments digitiform. Neuropodial acicular lobes distally rounded or truncate; aciculae emerging at midline. Pre- and postsetal lobes low, transverse folds. First 4 ventral cirri thick, tapering. Ventral cirri basally inflated from setiger 5. Inflated bases ovate; narrow tips digitiform. Inflated bases reduced from about setiger 50. By setiger 70-75 ventral cirri short, slender and digitiform. All notopodial cirri prominent, basally inflated, tapering to blunt tips, without articulations. Pectinate setae (Figure 85h) tapering, flat. One marginal tooth slightly longer than other teeth; -12 teeth present. Shafts of compound falcigers (Figure 85f) tapering, marginally smooth. Appendages large, with distinct heads, bidentate. Proximal teeth larger than distal teeth, triangular, directed laterally. Distal teeth curved. Guards distally rounded, margin smooth, mucros absent. Pseudocompound falcigers and compound spinigers absent. Aciculae (Figure 85g) paired, dark, sharply pointed, straight or gently curved; cross-section round. Subacicular hooks (Figure 85i) dark, bidentate. Hooks first present from setiger 27, present in all setigers thereafter, always single (except for replacements). Hooks slender, tapering. Proximal teeth about twice as large as distal teeth. Both teeth directed distally. UNKNOWN MORPHOLOGICAL FEATURES.—All characters associated with far posterior setigers, pygidium, and anal cirri. EXPECTED STATES OF UNKNOWN MORPHOLOGICAL FEA- TURES.—None. CHARACTERS USED IN PREPARATION OF KEY NOT SCORED.—Inappropriate Characters: 56, 58, 59. Unknown Characters: 1, 2,4,6, 13, 14, 23, 36-38,40, 74, 78. ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—37,1; 38,1. REMARKS.—Eunice pauroneurata is listed with similar species in Tables 27 and 31. The shape of the appendages of the compound hooks resembles the condition in E. collini, but the two species can be separated on the structure of the antennae and aciculae. Two additional species in Table 31 may have short, flexible branchiae. In E. bipapillata the flexibility was not noted, so it is here assumed present for the purpose of the discussion; in this species, branchiae arc first present from setiger 4 with a maximum of seven filaments; in E. pulvinopalpata branchiae arc present from sctigcr 3 with a maximum of 25 filaments. In E. pauroneurata branchiae are first present from scligcr 8 with a maximum of five filaments. Chambcrlin (1919a:253) claimed that the unpaired Mx III was missing; this is incorrect: Mx III is present, but left Mx IV is missing. 150. Eunice pectinata Grube, 1869 FIGURE 86«-C; TABLES 19, 20 Eunice pectinate Gnibe. 1869:492-493. MATERIAL EXAMINED.—Holotype, ZMB F 2005, Tor, Red Sea, coll. Ehrenberg. COMMENTS ON MATERIAL EXAMINED.—A note on the label translates as: "according to Grube's original label = E. pennata O.F. Muller." DESCRIPTION.—Holotype incomplete with 51 setigers; length 27 mm; maximal width 2 mm; length through setiger 10, 6 mm. Body cylindrical. Prostomium (Figure 86a) distinctly shorter and narrower than peristomium, less than x li as deep as peristomium. Prostomial lobes large, frontally rounded; median sulcus deep. Eyes posterior to A-I, faded. Antennae in a horseshoe, evenly spaced, similar in thickness. Ceratophores ring-shaped in all antennae, without articulations. Ceratostyles tapering, with up to 12 closely spaced, short, articulations. Articulations cylindrical basally, becoming drop-shaped distally. A-I to posterior peristomial ring; A-II to setiger 2; A-III to setiger 3. Peristomium cylindrical; lower lip thick, forming ventral cushion. Separation between rings distinct on all sides; anterior ring ~ 3 /4 of total peristomial length. Peristomial cirri to middle of anterior peristomial ring, digitiform, with 6 articulations. Maxillary formula 1+1, 5+5, 6+0, 4+8, 1+1. Jaws very soft and friable. Mx III form part of distal arc with left Mx IV. Branchiae (Figure 86b) present, pectinate, distinctly longer than notopodial cirri, not reduced in mid-body region, flexible. Branchiae from setiger 5 to end of fragment. First 2 pairs single filaments; maximum 10 filaments; even last setigers with 5
NUMBER 523 259 RGURE 86.—Eunice pectinata (holotype, ZMB F 2005): a, anterior end, lateral view; b, parapodium 49, anterior view; c, subacicular hook, parapodium 49; d, pectinate seta, parapodium 49; e, compound falciger, parapodium 49. Eunice pelamidis (holotype, MNHN, A.l(R.)-1868-no. 57a): f, subacicular hook, parapodium 110; g, acicula, parapodium 110; h, pseudocompound falciger, parapodium 110; i, pseudocompound falciger, parapodium 110; j, pectinate seta, parapodium 110; k, compound falciger, parapodium 5; 1, pectinate seta, parapodium 5; m, parapodium 5, anterior view.
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* A Review of the Genus Eunice (Pol
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S M I T H S O N I A N C O N T R I B
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Contents Page Introduction 1 Nomenc
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NUMBER 523 Eunice brevis (Ehlers, 1
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NUMBER 523 vii Eunice longicirris G
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NUMBER 523 ix Eunice stanleyi, new
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A Review of the Genus Eunice (Polyc
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NUMBER 523 (1820) are exemplary as
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NUMBER 523 included, but not specie
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NUMBER 523 subsequent workers. They
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NUMBER 523 illustrations. Seial len
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NUMBER 523 11 uniformly yellowish g
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NUMBER 523 13 to the frontal jaws (
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NUMBER 523 15 be longer than the ot
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NUMBER 523 17 rounded lobe about as
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NUMBER 523 19 Both outgroup species
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NUMBER 523 21 By "near posterior en
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NUMBER 523 23 69. dentition of appe
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NUMBER 523 25 Eunice djiboutiensis
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NUMBER 523 27 pauper a Grube, 1878b
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NUMBER 523 29 length of antennae in
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NUMBER 523 31 peristomium rubra 32(
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NUMBER 523 33 sulcus shallow tentac
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NUMBER 523 35 Peristomial cirri dig
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NUMBER 523 37 peristomial cirri dig
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NUMBER 523 39 Branchiae palmate [Fi
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NUMBER 523 41 .1 .05 1 5 d b c FIGU
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NUMBER 523 43 .02 .1 c, d FIGURE 4.
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NUMBER 523 45 and 49. In addition t
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NUMBER 523 47 4. Eunice afra Peters
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NUMBER 523 49 median antennae simil
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NUMBER 523 51 afuerensis and E. pel
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NUMBER 523 53 reaching beyond anter
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NUMBER 523 55 .02 .1 1 b. c d FIGUR
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NUMBER 523 57 FIGURE 10.—Eunice a
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NUMBER 523 59 TABLE 2.—Variable a
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NUMBER 523 61 .02 .5 .5 .1 2 e. f,
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NUMBER 523 63 .02 1 .1 f, y, h C FI
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NUMBER 523 65 midline. Pre- and pos
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NUMBER 523 67 Subacicular hooks (Fi
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NUMBER 523 69 REMARKS.—Eunice arm
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NUMBER 523 71 REMARKS.—Eunice art
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NUMBER 523 73 FIGURE 17.—Eunice a
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NUMBER 523 75 • 02 , d a FIGURE 1
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NUMBER 523 77 Proximal teeth larger
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NUMBER 523 79 FIGURE 20.—Eunice b
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NUMBER 523 81 been unable to see th
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NUMBER 523 83 in 120-150 m depth. T
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NUMBER 523 89 FlOURE 24.—Eunice b
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NUMBER 523 91 compound falcigcrs (F
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NUMBER 523 93 EXPECTED STATE OF UNK
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NUMBER 523 97 FIGURE 29.—Eunice c
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NUMBER 523 99 TABLE 3.—Variable a
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NUMBER 523 101 characters, best exp
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NUMBER 523 103 diagnostic." As indi
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NUMBER 523 105 FIGURE 31.—Eunice
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NUMBER 523 107 very short. Shafts s
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NUMBER 523 109 Presetal lobes low,
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NUMBER 523 111 which are similar to
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NUMBER 523 113 45. Eunice complanat
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NUMBER 523 FIGURE 35.—Eunice cong
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NUMBER 523 117 REMARKS.—Eunice co
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NUMBER 523 119 50. Eunice curticirr
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NUMBER 523 121 Anterior neuropodial
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NUMBER 523 123 a wide triangular ba
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NUMBER 523 127 55. Eunice edwardsi
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NUMBER 523 129 reduced, but still v
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NUMBER 523 131 1 2 .5 1 1 a h d h,
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NUMBER 523 133 cirri did not reach
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Page 149 and 150:
NUMBER 523 137 J .02 .1 1 a c, e d
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NUMBER 523 139 .0 2 1 2 1 .1 .5 1 h
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NUMBER 523 141 peristomium. Prostom
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NUMBER 523 143 shorter than filamen
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NUMBER 523 147 TABLE 5.—Variable
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NUMBER 523 151 .02 1 1 .1 f. g, h b
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NUMBER 523 153 complete specimen).
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NUMBER 523 155 branchiae is rare in
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NUMBER 523 157 Limbate and pectinat
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NUMBER 523 159 indistinct in both a
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NUMBER 523 161 79. Eunice grubei Gr
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NUMBER 523 163 Prostomium (Figure 5
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NUMBER 523 165 24, present in all s
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NUMBER 523 169 85. Eunice hawaiensi
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NUMBER 523 171 105 setigers; total
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NUMBER 523 173 dorsally and especia
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NUMBER 523 177 Filaments slender. N
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NUMBER 523 179 tween Mx III and lef
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NUMBER 523 183 transverse folds. Al
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NUMBER 523 185 CHARACTERS USED IN P
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NUMBER 523 187 • 02 .5 ] .1 2 .5
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NUMBER 523 189 02 FIGURE 62.—Euni
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NUMBER 523 191 .02 1 .1 e. t, q h.
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NUMBER 523 195 FlOURE 65.—Eunice
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NUMBER 523 197 Peristomial cirri to
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NUMBER 523 201 near posterior end,
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Page 219 and 220: NUMBER 523 207 falcigers agree well
Page 221 and 222: NUMBER 523 209 cirri, not reduced i
Page 223 and 224: NUMBER 523 211 Limbate setae margin
Page 225 and 226: NUMBER 523 213 TABLE 7.—Variable
Page 227 and 228: NUMBER 523 215 FIGURE 71.—Eunice
Page 229 and 230: NUMBER 523 217 EXPECTED STATES OF U
Page 233 and 234: NUMBER 523 221 articulations in A-1
Page 235 and 236: NUMBER 523 223 J32 J b, c, d a FIGU
Page 237 and 238: NUMBER 523 225 1 10 b, d, e, g. h,
Page 239 and 240: NUMBER 523 227 126. Eunice multicyl
Page 245 and 246: NUMBER 523 233 tion between rings d
Page 247 and 248: NUMBER 523 235 ASSUMED STATES FOR P
Page 249 and 250: NUMBER 523 237 visible ventrally; a
Page 253 and 254: NUMBER 523 241 proximally cylindric
Page 255 and 256: NUMBER 523 243 digitiform. Anterior
Page 257 and 258: NUMBER 523 245 Eunice oliga papeete
Page 259 and 260: NUMBER 523 247 h. i FIGURE 82.—Eu
Page 261 and 262: NUMBER 523 249 DESCRIPTION.—Body
Page 265 and 266: NUMBER 523 253 the type, there is l
Page 267 and 268: NUMBER 523 255 directed laterally,
Page 269: NUMBER 523 257 2 1 .1 b, c, », h d
Page 273 and 274: NUMBER 523 261 colored, tridentate
Page 275 and 276: NUMBER 523 263 papeetensis has expa
Page 279 and 280: NUMBER 523 267 These two species ar
Page 281 and 282: NUMBER 523 269 MATERIAL EXAMINED.
Page 283 and 284: NUMBER 523 271 evenly spaced, simil
Page 289 and 290: NUMBER 523 277 Peristomial cirri to
Page 291 and 292: NUMBER 523 279 18+0, 12+12, and 1+1
Page 293 and 294: NUMBER 523 281 than peristomium, as
Page 297 and 298: NUMBER 523 285 167. Eunice reducta
Page 299 and 300: NUMBER 523 287 articulations. Grube
Page 303 and 304: NUMBER 523 291 antennae, without ar
Page 307 and 308: NUMBER 523 295 Jaws not examined. B
Page 309 and 310: NUMBER 523 297 posiscial lobes low,
Page 311 and 312: NUMBER 523 299 ASSUMED STATES FOR P
Page 315 and 316: NUMBER 523 303 smaller specimens. M
Page 317 and 318: NUMBER 523 305 thereafter, always s
Page 319 and 320: NUMBER 523 307 The ceratostyles lac
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NUMBER 523 311 184. Eunice stigmatu
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NUMBER 523 313 Eunice stigmalura is
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NUMBER 523 31! .1 .5 a, b, c t n h
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NUMBER 523 317 Hartman (1956, as E.
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NUMBER 523 319 REMARKS.—Eunice th
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NUMBER 523 321 without articulation
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NUMBER 523 325 from setiger 5 throu
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NUMBER 523 327 appendages long, kni
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NUMBER 523 329 superior aciculae li
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NUMBER 523 331 b. c, e, f, g, h. i,
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NUMBER 523 333 paratype consisted o
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NUMBER 523 337 always single (excep
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NUMBER 523 341 1 .05 I 1 h a FIGURE
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NUMBER 523 343 3 A of total peristo
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NUMBER 523 345 Characters: 1, 2, 13
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NUMBER 523 347 TABLE 21.—Comparis
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Appendix A Character List for Eunic
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NUMBER 523 377 4. digitiform 5. cla
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NUMBER 523 379 5.03 13.U 14,U 15,3
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NUMBER 523 381 16.07 16.08 16.09 17
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NUMBER 523 383 28.01 biformicirrata
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NUMBER 523 385 39.03 39.04 39.05 39
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NUMBER 523 387 50.07 50.08 50.09 51
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NUMBER 523 389 62.01 62.02 62.03 62
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NUMBER 523 391 73.04 73.05 73.06 73
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NUMBER 523 393 84.07 84.08 84.09 85
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NUMBER 523 395 96.01 kerguelensis 9
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NUMBER 523 397 107.04 25,3 26,3 27,
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NUMBER 523 399 118.07 118.08 118.09
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NUMBER 523 401 130.01 mutilata 130.
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NUMBER 523 403 141.03 15.U 16,U 17.
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NUMBER 523 405 152.05 35,5 36,28 37
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NUMBER 523 407 164.07 164.08 164.09
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NUMBER 523 409 176.01 savignyi 176.
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NUMBER 523 411 187.04 24,U 25,4 26.
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NUMBER 523 413 198.07 55,2 56- 58-
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Appendix C Important publications o
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NUMBER 523 417 1919c. Pacific Coast
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NUMBER 523 419 Videnskabers Selskab
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NUMBER 523 421 38:1-74,37 figures.
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REQUIREMENTS FOR SMITHSONIAN SERIES
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