A Review of the Genus Eunice - Smithsonian Institution Libraries

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220 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY FIGURE 73.—Eunice microprion (ZMW 1062): a, anterior end, lateral view; b, pectinate seta, parapodium 9; c, compound falciger, parapodium 9; d, parapodium 9, anterior view; e, aciculae, parapodium 46; f, compound falciger, parapodium 46; g, pectinate seta, parapodium 46; h, subacicular hooks, parapodium 47; i, parapodium 46, anterior view; j, parapodium 105, anterior view; k, pectinate seta, parapodium 105. Eunice mindanavensis (holotype, BM(NH) ZK.1885.12.1.51a): 1, anterior end, lateral view; m, parapodium 30, anterior view; n, pectinate seta, parapodium 30; o, subacicular hook, parapodium 30; p, compound falciger, parapodium 30. (Scale ban in mm.l
NUMBER 523 221 articulations in A-111. A-I to posterior peristomial ring; A-II and A-III to setiger 3; A-I 11 slightly longer than A-II. Peristomium cylindrical. Separation between rings distinct nearly all way around body, indistinct only for short stretch laterally; anterior ring 5 /6 of total peristomial length. Peristomial cirri to middle of prostomium, slender and tapering, with 5 indistinct articulations. Maxillary formula of specimen from ZMW 1062 1+1, 6+6, 10+0, 4+8, 1+1, and 1+1. Mx III with very short, small teeth, forming an arc with left Mx IV. Mx VI small plate with small point on either side. Branchiae (Figure 73d,i,j) present, pectinate, distinctly shorter than notopodial cirri, reduced in mid-body region, flexible. Branchiae from setiger 7-8 to setiger 127. Branchiae present to near posterior end, present on more than 65% of total number of setigers. All anterior and posterior branchiae with 2 or more filaments, in median region, from about setiger 35 to 65, branchiae reduced to single, relatively long filaments (Figure 73i). Maximum -8 filaments at about setiger 15. Filaments short, digitiform. Anterior neuropodial acicular lobes rounded; posterior acicular lobes triangular or conical; aciculae emerging at midline. All prc- and postsetal lobes low, transverse folds. Anterior ventral cirri thick, tapering, becoming basally inflated from about setiger 10. Inflated bases distinct transverse welts; narrow tips tapering. Inflated bases reduced from about setiger 55-60, completely missing from about setiger 60-65. Posterior ventral cirri tapering, broadly attached ventrally, nearly scoop-shaped. All notopodial cirri digitiform, with 2 or more articulations. Anterior notopodial cirri about as long as peristomial cirri, becoming shorter from about setiger 3, but very much longer than branchiae in all setigers, retaining about same length from setiger 10 through rest of body, becoming slowly slimmer. Notopodial cirri articulated throughout body. Limbate setae marginally serrated. All pectinate setae (Figure 73d,g,k) tapering, flat. Both marginal teeth slightly longer than other teeth; number of teeth increasing from -15 to -20 posteriorly. Shafts of pectinate setae increasing in length posteriorly. Pectinate setae numbering -10 in all parapodia. Shafts of compound falcigers (Figure 73c, 0 tapering, with distinct distal beak, marginally smooth, with distinct internal striations. Appendages elongated with parallel sides anteriorly (Figure 73c), becoming shorter and distinctly tapering posteriorly (Figure 730, bidentate. Proximal and distal teeth similar in size. Proximal teeth triangular, directed laterally. Distal teeth gently curved. Anterior guards symmetrically rounded, becoming symmetrically bluntly pointed in posterior setigers; mucros absent. Pseudocompound falcigers and compound spinigers absent. Aciculae (Figure 73e) at least paired, up to 4 present, with dark brown, nearly black cores and clear sheaths, tapering with slender tips, bent or curved dorsally; cross-sections round. Subacicular hooks (Figure 73h) with dark brown, nearly black cores and clear sheaths, bidentate. Hooks first present from setiger 38 or 41, present in all setigers thereafter, 2 in most setigers; 3 or more in some setigers. Proximal teeth larger than distal teeth, triangular, directed laterally. Distal teeth nearly erect. UNKNOWN MORPHOLOGICAL FEATURES.—None. EXPECTED STATES OF UNKNOWN MORPHOLOGICAL FEA- TURES.—None. CHARACTERS USED IN PREPARATION OF KEY NOT SCORED.—Inappropriate Characters: 56, 58, 59. Unknown Characters: 4,6. ASSUMED STATES FOR PURPOSE OF PREPARING KEY.— None. REMARKS.—The species belongs to group B-2 and is compared to similar species in Tables 27 and 29. A characteristic feature is the reduced number of branchial filaments in median region of body; this pattern is present in E. antennata and a few similar species in group C-2, but is otherwise not known to be present in any other species in the genus. 123. Eunice mindanavensis Mclntosh, 1885 FIGURE 731-p; TABLES 27,30 Eunice mindanavensis Mclntosh, 1885:289-291, figs. 50,51, pi. 39: figs. 9,10, pi. 20A: figs. 21, 22. MATERIAL EXAMINED.—Holotype, BM(NH) ZK 1885.12.1.51a, off Mindanao, Philippines, 7°3'N, \2\°AVE, 148 and 186 m, stones and gravel, 26 Oct 1874, Challenger sta 201. COMMENTS ON MATERIAL EXAMINED.—The holotype is now in three pieces; an anterior end consisting of 21 setigers (cut into two pieces) and a posterior end of 42 setigers. The two pieces clearly belong to the same specimen and appear to represent a complete specimen. Mclntosh reported only the first of the two depths listed above; Alex Muir (in litL) informed me that station 201 included hauls at two different depths. DESCRIPTION.—Holotype complete with 63 setigers; total length -40 mm; maximal width 4 mm; length through setiger 10, 7 mm. Body thickset anteriorly, circular in cross-section, tapering strongly, with relatively few, very distinct segments. Prostomium (Figure 731) distinctly shorter and narrower than peristomium, less than l /i as deep as peristomium. Prostomial lobes frontally rounded; dorsally flattened lobes; median sulcus deep. Eyes not seen. Antennae covered by large overhanging peristomial fold, similar in thickness. Ceratophores ring-shaped in all antennae, without articulations. Ceratostyles tapering and slender, with up to 15 relatively long, rather indistinct, cylindrical articulations. A-I to setiger 1, A-II to setiger 3; A-III to setiger 7. Peristomium roughly cylindrical. Separation between rings distinct dorsally and possibly ventrally; separation on ventral side confounded by presence of superficial folds; anterior ring ~ 6 fr of total peristomial length. Peristomial cirri to tip of prostomium, tapering, with 7 long, cylindrical articulations.
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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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Page 163 and 164:
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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Page 181 and 182: NUMBER 523 169 85. Eunice hawaiensi
Page 183 and 184: NUMBER 523 171 105 setigers; total
Page 185 and 186: NUMBER 523 173 dorsally and especia
Page 187 and 188: NUMBER 523 175 FIGURE 57.—Eunice
Page 189 and 190: NUMBER 523 177 Filaments slender. N
Page 191 and 192: NUMBER 523 179 tween Mx III and lef
Page 195 and 196: NUMBER 523 183 transverse folds. Al
Page 197 and 198: NUMBER 523 185 CHARACTERS USED IN P
Page 199 and 200: NUMBER 523 187 • 02 .5 ] .1 2 .5
Page 201 and 202: NUMBER 523 189 02 FIGURE 62.—Euni
Page 203 and 204: NUMBER 523 191 .02 1 .1 e. t, q h.
Page 207 and 208: NUMBER 523 195 FlOURE 65.—Eunice
Page 209 and 210: NUMBER 523 197 Peristomial cirri to
Page 213 and 214: NUMBER 523 201 near posterior end,
Page 215 and 216: NUMBER 523 203 TABLE 6.—Variable
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 229 and 230: NUMBER 523 217 EXPECTED STATES OF U
Page 231: NUMBER 523 219 TABLE 8.—Variable
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 and 270: NUMBER 523 257 2 1 .1 b, c, », h d
Page 271 and 272: NUMBER 523 259 RGURE 86.—Eunice p
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.
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NUMBER 523 271 evenly spaced, simil
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NUMBER 523 277 Peristomial cirri to
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NUMBER 523 279 18+0, 12+12, and 1+1
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NUMBER 523 281 than peristomium, as
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NUMBER 523 285 167. Eunice reducta
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NUMBER 523 287 articulations. Grube
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NUMBER 523 291 antennae, without ar
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NUMBER 523 295 Jaws not examined. B
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NUMBER 523 297 posiscial lobes low,
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NUMBER 523 299 ASSUMED STATES FOR P
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NUMBER 523 303 smaller specimens. M
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NUMBER 523 305 thereafter, always s
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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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