A Review of the Genus Eunice - Smithsonian Institution Libraries

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180 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY antennae, without articulations. Ceratostyles tapering, with up to 20 short, cylindrical articulations in A-III. A-I to posterior peristomial ring; A-I I to setiger 6; A-III to setiger 12 when folded back over dorsum. Peristomium slightly wider than prostomium, tapering anteriorly. Separation between rings distinct dorsally and ventrally; anterior ring 5 /6 of total peristomial length. Peristomial cirri to posterior edge of prostomium, digitiform, with 3 to 4 cylindrical articulations. Maxillary formula 1+1,4+4,8+0,5+8,and 1+1. Mx III part of distal arc with left Mx IV. Mx VI absent. Jaws friable; right Mx IV damaged so number of teeth uncertain. Branchiae (Figure 58j) present, pectinate, distinctly longer than notopodial cirri, not reduced in mid-body region, erect. Branchiae from setiger 17 to end of fragment. Maximum 8 filaments in setigers 25 to 30. Stems long, erect in median setigers, shortening rapidly posteriorly. Filaments relatively thick, folded up against branchial stems, relative length of filament increasing posteriorly, but shorter than notopodial cirri in all setigers. Neuropodial acicular lobes rounded; aciculae emerging above midline. Presetal lobes low, transverse folds. Postsetal lobes free, distinct lobes, higher than acicular lobes, becoming reduced in size, following outline of acicular lobes in posterior end of fragment. Ventral cirri thick, tapering; inflated bases totally imperceptible. Notopodial cirri basally inflated, prominent, with 2 to 3 long, cylindrical rings. Limbate setae slender, marginally smooth. Pectinate setae (Figure 58i) gently furled, slightly flaring. One marginal tooth longer than other teeth, with 13 to 14 teeth. Shafts of compound falcigers (Figure 58f) slender, tapering, marginally smooth. Appendages narrow, tapering; heads distinct, bidentate. Proximal teeth slightly longer than distal teeth, tapering, directed obliquely distally. Distal teeth tapering, curved. Guards symmetrically rounded, marginally smooth; mucros absent. Pseudocompound falcigers and compound spinigers absent. Aciculae single, with brown cores and clear sheaths, tapering, straight; cross-sections round. Subacicular hooks (Figure 58h) with brown cores; heads completely clear, nearly translucent, bidentate. Hooks first present from setiger 23, present in all setigers thereafter, always single (except for replacements). Hooks tapering, with distinct head. Proximal teeth larger than distal teeth, triangular, directed laterally. Distal teeth triangular, erect. UNKNOWN MORPHOLOGICAL FEATURES.—Relationship between Mx III and left Mx IV; features associated with posterior setigers, including branchial distribution; pygidium and anal cirri. EXPECTED STATES OF SELECTED UNKNOWN FEATURES.— None. CHARACTERS USED IN PREPARATION OF KEY NOT SCORED.—Inappropriate Characters: 51, 54, 55. Unknown Characters: 1,2,6, 36-40,47, 50, 57-60,63. ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—371- 38,1. REMARKS.—Eunice jagori has remained incompletely known since it was originally described; it is listed with similar species in Tables 33 and 35. The ventral cirri are not basally inflated in median setigers, which is an unusual feature in the genus, but perhaps most characteristic is the crowding of the posterior setigers, with the parapodia carried on fleshy ridges. Eunice januarii Grube, 1881:111. Eunice januarii Grube, 1881 REMARKS.—The material of this species currently present in Zoologisches Museum, Berlin, consists of a large specimen and two parapodia. It lacks peristomial cirri and has we 11-developed fascicles of compound spinigers and lacks compound falcigers. The species belong to the genus Marphysa and will be treated in a review of that genus. 94. Eunice japonica, new name FIGURE 59a-c; TABLES 19. 20 Eunice gracilis Moore, 1903:440-441. pi. 25: figi. 46-48. Eunice longicirrala.—Imajima and Hartman, 1964:256 Inol Eunice longicirraw Webster. 1884]. MATERIAL EXAMINED.—Holotype of E. gracilis Moore, 1903, USNM 15724, Albatross sta 3730, off Omae Zaki, Honshu Island, Japan, approximate position 34°36'N, 138°14'E, 16 May 1900, 62-67 m, mud, gravel, rock. COMMENTS ON MATERIAL EXAMINED.—Station 3730 was a surface tow, according to the published station list; several dredge and beam trawl hauls were taken off Omae Zaki on the same day in approximately the same depths. The specimen may have come from any one of these hauls. The position indicated is that of the cape, Omae Zaki proper. DESCRIPTION.—Holotype complete, of unknown sex, with 110 setigers; total length 50 mm; maximal width 2.5 mm; length through setiger 10, 7 mm. Body cylindrical with relatively long segments. Two pairs of anal cirri present; ventral pair long; dorsal pair very short. All anal cirri with long, cylindrical articulations. Prostomium (Figure 59e) distinctly shorter and narrower than peristomium, less than x li as deep as peristomium. Prostomial lobes frontally rounded, dorsally flattened; median sulcus shallow. Eyes between bases of A-I and A-I I. Antennae in horseshoe, evenly spaced, similar in thickness. Ceratophores ring-shaped in all antennae, without articulations. Ceratostyles slender, tapering; articulations long, cylindrical in A-I I and A-III, nearly moniliform in A-I. Maximum 10 articulations in A-III; articulations indistinct towards bases of 3 longer antennae. A-I to middle of anterior peristomial ring; A-II to setiger 3; A-III to setiger 5. Peristomium cylindrical. Separation between rings distinct on all sides, but especially distinct dorsally; anterior ring ~ 3 A of total peristomial length. Peristomial cirri to posterior half of prostomium, slender and tapering,
NUMBER 523 181 FIGURE 59.—Eunice japonica, new name (holotype of E. gracilis, USNM 15724): a, subacicular hook, parapodium 75; b, acicula, parapodium 75; c, compound falciger, parapodium 75; d, secondary subacicular hook, parapodium 75; e, anterior end, lateral view. Eunice johnsoni (holotype, USNM 24717): f, anterior end, lateral view; g, subacicular hook, parapodium 45; h, pectinate seta, parapodium 45; i, compound falciger, parapodium 45; j. parapodium 45, anterior view. (Scale bars in mm.)
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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
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 147 and 148: NUMBER 523 135 FIGURE 43.—Eunice
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 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 189 and 190: NUMBER 523 177 Filaments slender. N
Page 191: 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
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
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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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