A Review of the Genus Eunice - Smithsonian Institution Libraries

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292 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY longer than other teeth; -10 teeth present. Shafts of anterior and median compound falcigers (Figure 98hjc) inflated, marginally serrated; those of posterior falcigers tapering and smooth (Figure 98q). Appendages thick with very nearly parallel sides, bidentate. Proximal teeth larger than distal teeth, triangular, directed laterally. Distal teeth nearly straight, directed obliquely distally. Guards asymmetrically bluntly pointed; mucros absent. Pseudocompound falcigers and compound spinigers absent. Aciculae paired, yellow. Anterior aciculae tapering to blunt tips, gently curved or straight. In median setigers inferior aciculae (Figure 98n) blunt-tipped, distinctly sharply bent. Posteriorly inferior aciculae (Figure 98r) indistinctly bifid, slender, superior aciculae distinctly bifid with teeth of different sizes, thick; cross-sections round. Separation between core and sheath indistinct in both aciculae and subacicular hooks. Subacicular hooks (Figure 98m,p) yellow, tridcntate with teeth in a crest. Hooks first present from setiger 27, present in all setigers thereafter, paired in some setigers. Two distal fangs grouped on common bases; tertiary fangs very small in median setigers, becoming more distinct in posterior setigers. UNKNOWN MORPHOLOGICAL FEATURES.—Jaw structure; 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: 1,2,4,6,23, 36-38,40. ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—37,1; 38,1. REMARKS.—Eunice rubra is listed with similar species in Tables 46 and 47. It has both pointed and weakly bidentate aciculae. Other than E. elseyi, it has a far higher number of branchial filaments than any other species with modified aciculae listed in Table 47. Eunice rubra has crested tridentate subacicular hooks; E. elseyi has hooks with the distal pair of teeth in tandem. 172. Eunice rubrivittata (Treadwell, 1921) FIGURE 99a-e; TABLES 41,42 Leodice rubrivitlata Treadwell, 1921:34-36, figs. 85-94, pi. 1: fig. 18. Eunice viitata.—Augener, 1927:40.—Hartman, 1956:252 [in part, not Nereis vittata Chiaje, 1829]. MATERIAL EXAMINED.—Holotype, AMNH 1263, Buccoo Bay, Tobago land, 8 Apr 1918. DESCRIPTION.—Holotype incomplete with 97 setigers; length 56 mm; maximal width 1.2 mm; length through setiger 10, 5.1 mm. Prostomium and peristomium about equal in length (Figure 99a), distinctly narrower than peristomium, less than V2 as deep as peristomium. Prostomial lobes frontally rounded, dorsally slightly flattened; median sulcus deep. Eyes not observed. Antennae in a horseshoe, evenly spaced, similar in thickness. Ceratophores ring-shaped in all antennae, without articulations. Ceratostyles distally blunt, digiliform, with 2 or 3 irregularly arranged, cylindrical articulations. A-I to middle of peristomium; A-II and A-III to setiger 1. Peristomium cylindrical. Separation between rings distinct on all sides of body; anterior ring slightly longer than posterior ring. Anterior ring with frontal, yoke-shaped thickening covering at pcristomial fold. Peristomial cirri incomplete, probably slender and digitiform. Jaws not available. Branchiae (Figure 99c) present, pectinate, distinctly shorter than notopodial cirri, not reduced in mid-body region, flexible. Branchiae from setiger 3 to setiger 56. Branchiae terminating well before posterior end, present on less than 55% of total number of setigers. First 6 branchiae single, long filaments which increase somewhat in length posteriorly. From setiger 9 another filament added; maximum 5 filaments from setiger 25 to 40. Number of filaments reduced to 1 by setiger 45. Anterior ncuropodial acicular lobes distally obliquely transverse with distinct, rounded lobes dorsal to emergence of aciculae; posterior acicular lobes increasingly withdrawn into body wall with aciculae emerging from tips; subacicular hooks supporting a secondary, flattened conical structure along ventral edge of parapodium (Figure 99b). All prc- and postsetal lobes follow outline of acicular lobes closely. First 5 or 6 ventral cirri digitiform. Ventral cirri basal I y inflated from setiger 6 through setiger 50. Inflated bases nearly spherical; narrow tips digitiform. Ventral cirri digitiform from setiger 60, emerging well distal to bases of parapodia. Anterior notopodial cirri tapering, with 2 or 3 indistinct cylindrical articulations. Posterior notopodial cirri long, digitiform, without articulations. Limbate and pectinate setae not observed. Shafts of compound falcigers (Figure 99c) inflated, marginally smooth. Appendages bidentate. Proximal teeth much larger than distal teeth. Distal teeth directed obliquely distally. Guards with very short distal mucros. Pseudocompound falcigers and compound spinigers absent. Aciculae single, yellow, tapering, straight; cross-sections round. Notopodial aciculae distinct in anterior and median setigers. Separation between core and sheath indistinct in both aciculae and subacicular hooks. Subacicular hooks (Figure 99d) yellow, tridentate with teeth in a crest. Hooks first present from setiger 31, present in all setigers thereafter, always single (except for replacements). Hooks with very large, curved main fangs; fangs decreasing in size to very short tertiary fang. UNKNOWN MORPHOLOGICAL FEATURES.—Jaw structure; pectinate setae; 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, 27-29,65-68. ASSUMED STATES FOR PURPOSE OF PREPARING KEY.— None.
NUMBER 523 293 FIGURE 99.—Eunice rubrivUtata (holotype, AMNH 1263): a, anterior end, lateral view; b, parapodium 70, anterior view; c, compound falciger, parapodium 29; d, subacicular hook, parapodium 29; e, parapodium 29, anterior view. Eunice rullieri (syntype, Zool. Mus., Tel-Aviv University, 7563): f, anterior end, lateral view; g, pectinate seta, parapodium 27; h, subacicular hook, parapodium 27; i, compound falciger, parapodium 27; j, parapodium 27, 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
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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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Page 159 and 160:
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
Page 169 and 170:
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
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NUMBER 523 171 105 setigers; total
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NUMBER 523 173 dorsally and especia
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Page 189 and 190:
NUMBER 523 177 Filaments slender. N
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NUMBER 523 179 tween Mx III and lef
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Page 195 and 196:
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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Page 207 and 208:
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
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NUMBER 523 209 cirri, not reduced i
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NUMBER 523 211 Limbate setae margin
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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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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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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 263 and 264: NUMBER 523 251 FIGURE 83.—Eunice
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.
Page 283 and 284: NUMBER 523 271 evenly spaced, simil
Page 285 and 286: NUMBER 523 273 TABLE 13.—Variable
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: 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
Page 323 and 324: NUMBER 523 311 184. Eunice stigmatu
Page 325 and 326: NUMBER 523 313 Eunice stigmalura is
Page 327 and 328: NUMBER 523 31! .1 .5 a, b, c t n h
Page 329 and 330: NUMBER 523 317 Hartman (1956, as E.
Page 331 and 332: NUMBER 523 319 REMARKS.—Eunice th
Page 333 and 334: NUMBER 523 321 without articulation
Page 337 and 338: NUMBER 523 325 from setiger 5 throu
Page 339 and 340: NUMBER 523 327 appendages long, kni
Page 341 and 342: NUMBER 523 329 superior aciculae li
Page 343 and 344: NUMBER 523 331 b. c, e, f, g, h. i,
Page 345 and 346: NUMBER 523 333 paratype consisted o
Page 349 and 350: NUMBER 523 337 always single (excep
Page 353 and 354: 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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