A Review of the Genus Eunice - Smithsonian Institution Libraries

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254 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY FIGURE 84.—Eunice parva (holotype, Leiden, no. 1481): a, anterior end, lateral view; b, acicula, parapodium 11; c, compound falciger, parapodium 11; d, parapodium 11, anterior view; e, parapodium 40, anterior view; f, compound falciger, parapodium 40; g, subacicular hook, parapodium 40; h, pectinate seta, parapodium 40. Eunice parvibranchis (syntype, ZMH V-804): i, compound falciger, parapodium SO; j, pectinate seta, parapodium SO; k, subacicular hook, parapodium 50; 1, anterior end, lateral view. (Scale bars in mm.)
NUMBER 523 255 directed laterally, tapering, thick. Hoods symmetrically rounded; mucros and marginal serrations absent. Aciculae single, yellow, tapering to blunt tips, anteriorly straight with narrow hood, posteriorly gently curved, without hoods. Subacicular hooks from setiger 24, single, yellow, tridentate. Hooks with distinct bent neck; heads large. Fangs decreasing evenly in size, evenly spaced. Proximal fangs triangular, parrot-beaked. Secondary fangs slender, nearly straight Tertiary fangs triangular, tapering, straight. UNKNOWN MORPHOLOGICAL FEATURES.—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: 65,66. ASSUMED STATES FOR PURPOSE OF PREPARING KEY.— None. REMARKS.—A note in Augener's handwriting in the vial with the holotype refers this specimen to Eunice rubra as a juvenile. The species by definition belongs to group C-l and is compared to similar taxa in Tables 41 and 44; it is the only species in Table 44 to have hooded tapering aciculae. The setae resemble those of species in group C-2 as well. 147. Eunice parvibranchis Grube, 1870 FIGURE 84j-m; TABLES 33, 39 Eunice parvibranchis Grube, 1870b:55. MATERIAL EXAMINED.—TWO syntypes, ZMH V-804, Upolu, Fiji Islands; ZMB Q 2266, Fiji Islands, coll. Godeffroy. COMMENTS ON MATERIAL EXAMINED.—Both syntypes are incomplete and are now very soft. A posterior fragment present in same vial as the Hamburg syntype appears to belong to a species of Palola in that it lacks subacicular hooks and pectinate setae. At one time, the Berlin syntype has been dry and is now difficult to measure in detail. The description is based on the Hamburg specimen, with notes on the Berlin specimen where it differs. As indicated the specimens are very soft, and so the structure, especially of the parapodia, cannot be determined very accurately. DESCRIPTION.—Hamburg syntype incomplete with 133 setigers; length 144 mm; maximal width 4 mm; length through setiger 10, 10 mm. Berlin syntype incomplete with -145 setigers; length about 65 mm. Prostomium (Figure 841) distinctly shorter and narrower than peristomium, less than x /i as deep as peristomium. Prostomial lobes frontally rounded, dorsally inflated; median sulcus shallow. Eyes posterior to bases of A-I, faded. Antennae in a semicircle with A-I well in front of other antennae, evenly spaced, similar in thickness. Ceratophores ring-shaped in all antennae, without articulations. Ceratostyles thick and digitiform; none outreaching peristomium; A-III longest. Peristomium cylindrical, with distinct muscular lower lip. Separation between rings distinct on all sides; anterior ring 4 /s of total peristomial length. Peristomial cirri to middle of anterior peristomial ring, digitiform, without articulations. Jaws on left hand side all missing in Hamburg syntype; lining of oral cavity intact; left-hand jaws possibly shed or never developed. Formula for right hand side 1, 6, 10, and 2 (Mx III missing). Maxillary formula of Berlin syntype 1+1, 5+5, 7+0, 2+9, 1+1. Mx III and left Mx IV part of distal arc. Branchiae present, palmate, distinctly longer than notopodial cirri, not reduced in mid-body region. Branchiae from setiger 20 to end of fragment (from setiger 19 in Berlin syntype), most branchiae with 2 filaments. Where best developed, around setiger 40, 3 filaments present. Filaments longer than notopodial cirri except in first 3-4 branchial segments, slender and digitiform. Neuropodial acicular lobes probably rounded or truncate. All presetal lobes low, transverse folds. Anterior postsetal lobes possibly as high as acicular lobes, becoming low, transverse folds in median and posterior setigers. Anterior ventral cirri tapering; basally inflated from about setiger 5-6 at least through setiger 50. Inflated bases ovate; narrow tips tapering. Posterior ventral cirri tapering. Notopodial cirri short and medially inflated, without articulations. Limbate setae slender, marginally smooth. Pectinate setae (Figure 84j) distally flaring, slightly furled. Both marginal teeth slightly longer than other teeth; -16 teeth present Shafts of compound falcigers (Figure 84i) distinctly inflated, marginally serrated. Appendages short and tapering, bidentate. Proximal teeth about as large as distal teeth, narrowly triangular, directed laterally. Distal teeth gently curved. Guards symmetrically rounded, marginally serrated; mucros absent. Pseudocompound falcigers and compound spinigers absent. Aciculae brown, lighter in posterior than in anterior setigers, slightly tapered, truncate, straight; cross-section round. Subacicular hooks (Figure 84k) brown, bidentate. Hooks from setiger 19 (from setiger 17 in Berlin syntype), present in all setigers thereafter, always single (except for replacements). Hooks abruptly tapering distally. Proximal and distal teeth similar in size. Proximal teeth thick, short. Distal teeth about one-half as thick as proximal teeth. UNKNOWN MORPHOLOGICAL FEATURES.—Relationship between Mx III and left Mx IV; parapodial and setal characters of 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: 22, 34, 56. Unknown Characters: 1, 2, 4, 6, 36-40, 44,47, 50, 57-60, 63, 74, 78. ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—37,1; 38,1. REMARKS.—Eunice parvibranchis belongs to group B-4 and closely resembles several other species in the group as indicated in Tables 33 and 39. Most species listed in Table 39 have subacicular hooks starting about 10 segments later than
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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,
Page 215 and 216: NUMBER 523 203 TABLE 6.—Variable
Page 217 and 218: NUMBER 523 205 FIGURE 68.—Eunice
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 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: NUMBER 523 253 the type, there is l
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.
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
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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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