A Review of the Genus Eunice - Smithsonian Institution Libraries

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170 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY 02 i I 2 .1 e. t. h i b i c a. i k FIGURE 55.—Eunice hawaiensis (holotype, USNM 5210): a, anterior end, lateral view; b, parapodium 34, anterior view; c, aciculae, parapodium 34; d, subacicular hook, parapodium 34; e, pectinate seta, parapodium 34; f, compound falciger, parapodium 34. Eunice helerochaela (holotype, MNHN, Paris A.l(R.)-1868-no. 48a): g, anterior end, lateral view; h, compound falciger, parapodium 28; i, pectinate seta, parapodium 28; j, subacicular hook, parapodium 50; k, aciculae, parapodium 28; 1, parapodium 28, anterior view. (Scale bars in mm.)
NUMBER 523 171 105 setigers; total length 27 mm; maximal width 3.5 mm at setiger 10; length through setiger 10, 4 mm. Body cylindrical throughout. Prostomium (Figure 55g) distinctly shorter and narrower than peristomium, less than x li as deep as peristomium. Prostomial lobes frontally truncate, dorsally flattened; median sulcus shallow. Eyes absent. Antennae in horseshoe, evenly spaced; A-I slimmer than A-II and A-III. Ceratophores ring-shaped in all antennae, without articulations. Ceratostyles slender and tapering, with up to 5 long, cylindrical articulations in A-III. A-I to posterior peristomial ring; A-II to setiger 1; A-III to setiger 5. Peristomium very much wider than prostomium, with distinct, muscular lower lip. Separation between rings distinct dorsally and ventrally; anterior ring 2 h of total peristomial length. Peristomial cirri to middle of anterior peristomial ring, slender and tapering, without articulations. Jaws missing. Branchiae (Figure 551) present, pectinate, distinctly longer than notopodial cirri, not reduced in mid-body region, erect. Branchiae from setiger 3 to 85. Branchiae terminating well before posterior end, present on more than 65% of total number of setigers. First 3 and last 15 branchiae single filaments, maximum 7 filaments at about setiger 25. Stems short, tapering, shorter than filaments. Filaments slender, as long as notopodial cirri in all except first 2 and last 10 branchial setigers. Neuropodial acicular lobes truncate to rounded; aciculae emerging at midline. Pre- and postsctal lobes low, transverse folds. First 4 ventral cirri tapering, digitiform, becoming basally inflated from setiger 5. Inflated bases thick, short transverse welts, lost by setiger 30; narrow tips tapering. Posterior ventral cirri tapering, becoming increasingly digitiform in last setigers present. Anterior notopodial cirri basally inflated, with 3-4 long, cylindrical articulations, losing articulations in branchial region, retaining inflated bases in all setigers. Limbate setae slender, marginally smooth. Pectinate setae (Figure 55i) tapering, flat. One marginal tooth slightly longer than other teeth, less than 10 teeth present. Shafts of compound falcigers (Figure 55h) tapering, marginally smooth; beaks indistinct. Appendages tapering; heads large, bidentate. Proximal teeth about twice as large as distal teeth, triangular. Distal teeth distinctly curved, tapering. Guards symmetrically bluntly pointed, marginally smooth; mucros absent. Pseudocompound falcigers and compound spinigers absent. Usually 3 or more aciculae (Figure 55k) in anterior or medial parapodia, yellow, slender, gently curved or bent; cross-sections round. Separation between core and sheath indistinct in both aciculae and subacicular hooks. Subacicular hooks (Figure 55j) yellow, bidentate. Hooks first present from setiger 22, present in all setigers thereafter, always single (except for replacements). Hooks slender, tapering, curved. Proximal teeth about twice as large as distal teeth; both teeth directed laterally. UNKNOWN MORPHOLOGICAL FEATURES.—Jaw structure; pygidium and anal cirri. EXPECTED STATES OF SELECTED UNKNOWN FEATURES.— None. CHARACTERS USED IN PREPARATION OF KEY NOT SCORED.—Inappropriate Characters: 14, 56, 58, 59. Unknown Characters: None. ASSUMED STATES FOR PURPOSE OF PREPARING KEY.— None. REMARKS.—Quatrefages original description and illustrations are inadequate to characterize the species. Grube (1870a:295-296) gave some detail, but saw no reason to retain the species and referred it to E. pennata, despite the fact that branchiae are continued to setiger 85 and not terminated at setiger 39 as in the latter. Fauvel (1923:400, 451) referred E. heterochaeta to E. pennata apparently under some doubt. Eunice heterochaeta clearly belongs to group A-l and is listed with similar species in Tables 19 and 21. Only one species in this list, E. rubrocincta, resembles E. heterochaeta in having better than 70% of the total numbers of setigers branchiated; most species in this group have less than 50% of the setigers branchiated. The antennae increase in length from A-I through A-III in E. heterochaeta; all antennae are similar in length and very short in E. rubrocincta. 87. Eunice hirschi, new name FIGURE 56a-i; TABLES 46,48 Leodice articulata Hoagland, 1920:615-616, pi. 50: figs. 9-12. MATERIAL EXAMINED.—Holotype and 1 paratype of Leodice articulata Hoagland, USNM 18955, Albatross sta 5159, Tinakta Island, Philippines, 5°1l'50"N, 119°54'E, 22 Feb 1908, 22 m, sand, dredged. One additional specimen of Leodice articulata Hoagland, USNM 19024, Albatross sta 5205, off Caguayan Point, Leyte Island, Philippines, 1F19'3O"N, 124°58'05"E, 13 Apr 1908, 15 m, Agassiz trawl. COMMENTS ON MATERIAL EXAMINED.—The paratype from station 5205 has at one time been dry and no meaningful measures can be taken; it does not appear to differ from the two other specimens. DESCRIPTION.—Holotype complete, of unknown sex, with 112 setigers; total length 55 mm; maximal width 3 mm at setiger 10; length through setiger 10, 7 mm. Paratype from sta 5159 incomplete, of unknown sex, with 71 setigers; length 37 mm; maximal width 4 mm; length through setiger 10, 7 mm. Prostomium (Figure 56a) distinctly shorter and narrower than peristomium, as deep as V2 of peristomium. Prostomial lobes frontally truncate, dorsally flattened; median sulcus deep. Eyes not observed. Antennae in a horseshoe, evenly spaced; A-III distinctly thinner than other antennae. Ceratophores ring-shaped in all antennae, without articulations. Ceratostyles very slender, tapering, articulated to bases, with up to 35 moniliform articulations in A-III. A-I to setiger 1; A-II to setiger 4; A-III to setiger 6. Peristomium cylindrical, with distinct muscular lower lip. Separation between rings distinct
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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
Page 131 and 132: NUMBER 523 119 50. Eunice curticirr
Page 133 and 134: NUMBER 523 121 Anterior neuropodial
Page 135 and 136: NUMBER 523 123 a wide triangular ba
Page 137 and 138: NUMBER 523 125 FIGURE 39.—Eunice
Page 139 and 140: NUMBER 523 127 55. Eunice edwardsi
Page 141 and 142: NUMBER 523 129 reduced, but still v
Page 143 and 144: NUMBER 523 131 1 2 .5 1 1 a h d h,
Page 145 and 146: NUMBER 523 133 cirri did not reach
Page 149 and 150: NUMBER 523 137 J .02 .1 1 a c, e d
Page 151 and 152: NUMBER 523 139 .0 2 1 2 1 .1 .5 1 h
Page 153 and 154: NUMBER 523 141 peristomium. Prostom
Page 155 and 156: NUMBER 523 143 shorter than filamen
Page 159 and 160: NUMBER 523 147 TABLE 5.—Variable
Page 163 and 164: NUMBER 523 151 .02 1 1 .1 f. g, h b
Page 165 and 166: NUMBER 523 153 complete specimen).
Page 167 and 168: NUMBER 523 155 branchiae is rare in
Page 169 and 170: NUMBER 523 157 Limbate and pectinat
Page 171 and 172: NUMBER 523 159 indistinct in both a
Page 173 and 174: NUMBER 523 161 79. Eunice grubei Gr
Page 175 and 176: NUMBER 523 163 Prostomium (Figure 5
Page 177 and 178: NUMBER 523 165 24, present in all s
Page 181: NUMBER 523 169 85. Eunice hawaiensi
Page 185 and 186: NUMBER 523 173 dorsally and especia
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 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
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NUMBER 523 221 articulations in A-1
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NUMBER 523 223 J32 J b, c, d a FIGU
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NUMBER 523 225 1 10 b, d, e, g. h,
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NUMBER 523 227 126. Eunice multicyl
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Page 245 and 246:
NUMBER 523 233 tion between rings d
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NUMBER 523 235 ASSUMED STATES FOR P
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NUMBER 523 237 visible ventrally; a
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NUMBER 523 241 proximally cylindric
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NUMBER 523 243 digitiform. Anterior
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NUMBER 523 245 Eunice oliga papeete
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NUMBER 523 247 h. i FIGURE 82.—Eu
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NUMBER 523 249 DESCRIPTION.—Body
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NUMBER 523 253 the type, there is l
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NUMBER 523 255 directed laterally,
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NUMBER 523 257 2 1 .1 b, c, », h d
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NUMBER 523 259 RGURE 86.—Eunice p
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NUMBER 523 261 colored, tridentate
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NUMBER 523 263 papeetensis has expa
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NUMBER 523 267 These two species ar
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NUMBER 523 269 MATERIAL EXAMINED.
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NUMBER 523 271 evenly spaced, simil
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NUMBER 523 273 TABLE 13.—Variable
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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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