A Review of the Genus Eunice - Smithsonian Institution Libraries

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296 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY FIGURE 100.—Eunice samoae (holotype, ZMH P 14272): a, anterior end, lateral view; b, compound falciger, parapodium 20; c, pectinate seu, parapodium 20; d, parapodium 20, anterior view; e, parapodium 100, anterior view; f, pectinate seu, parapodium 100; g, compound falciger, parapodium 100; h, subacicularhook, parapodium 100. Eunice schizobranchia (MNHN): i, parapodium 14, anterior view; j, compound falciger, parapodium 14; k, compound falciger, parapodium 14; 1, anterior end, lateral view; m, pectinate seu, parapodium 683; n, subacicular hook, parapodium 683; o, acicula, parapodium 683; p, compound falciger, parapodium 683; q, parapodium 683, anterior view. (Scale bars in mm.)
NUMBER 523 297 posiscial lobes low, transverse folds. First 5 ventral cirri thick and tapering. Ventral cirri basally inflated from setiger 6 through setiger 40. Inflated base large, transverse welts; narrow tips tapering. Posterior ventral cirri thick and tapering and about as long as notopodial cirri, but distinctly thicker. All notopodial cirri thick, basally inflated, without articulations. Limbatc setae slender, marginally smooth. Anterior pectinate setae (Figure 100c) furled, slightly flaring. One marginal tooth distinctly longer than other teeth; -15 teeth present Posterior pectinate setae (Figure 1000 slightly less furled, distinctly more flared. One marginal tooth longer than other teeth; -20 teeth present. Shafts of compound falcigers (Figure 100b,g) distinctly inflated, marginally serrated; beak distinct. All appendages similar in size, triangular with distinct heads, bidentate. Proximal teeth narrow, slender, directed or curved slightly distally. Distal teeth distinctly larger than proximal teeth, gently curved. All guards symmetrically bluntly pointed, nearly rounded; mucros absent. Pseudocompound falcigers and compound spinigers absent. Aciculae single or paired, dark brown, tapering, nearly straight, blunt-tipped; cross-sections round. Separation between core and sheath indistinct in aciculae. Subacicular hooks (Figure lOOh) with dark brown cores and clear sheaths, bidentate. Hooks first present from setiger 26, present in all setigers thereafter, always single (except for replacements). Hooks tapering, slightly bent. Proximal teeth larger than distal teeth; both teeth directed distally. UNKNOWN MORPHOLOGICAL FEATURES.—Pygidium 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: 1,2,6,13,14. ASSUMED STATES FOR PURPOSE OF PREPARING KEY.— None. REMARKS.—Eunice samoae was originally described as a subspecies of E. mutilata. The branchial distribution differ markedly in the two forms. The former has branchiae limited to a short anterior part of the body, the latter has branchiae distributed over most of the body. The shape of the branchiae and the compound falcigers are also different. Eunice samoae is listed with similar species in Tables 24 and 25. Of the four species in Table 25 that have cylindrical articulations in the ceratostyles, two species, E. coccinea and E. samoae, have short peristomial cirri; in the other two species the peristomial cirri reach at least the peristomium. Eunice samoae differs from E. coccinea in that it has the ventral cirri inflated only in the median region; in the latter the ventral cirri are basally inflated to near the posterior end. The ceratostyles are very thick, nearly sausage-like, and the branchial filaments are thick and distally abruptly tapering with a slender tip; both features are missing in other species listed in Table 24. and 176. Eunice savignyi Grube, 1878 TABLES 19.20 Eunice savignyi Gnibc, 1878b:150-151. DESCRIPTION.—Grube had available a single specimen, which apparently now has been lost; the notes below are based on his description. Type specimen incomplete with 105 segments (nearly complete according to Grube); length 63 mm. Ceratostyles with long, cylindrical articulations. A-III to setiger 16 with 14 articulations. Peristomial cirri reaching beyond peristomium, with 5 articulations. Maxillary formula 1+1, 6+6, 7+0, 5+9, and 1+1. Branchiae pectinate. Branchiae from setiger 4 to setiger 45. Branchiae terminating well before posterior end, present on less than 55% of total number of setigers. Maximum 12 filaments. Limbate and pectinate setae and compound falcigers unknown. Aciculae and subacicular hooks yellow. Subacicular hooks bidentate. UNKNOWN MORPHOLOGICAL FEATURES.—Most prostomial and peristomial features; jaw structure; all parapodial features; limbate and pectinate setae; compound falcigers. EXPECTED STATES OF SELECTED UNKNOWN FEATURES.— None CHARACTERS USED IN PREPARATION OF KEY NOT SCORED.—Inappropriate Characters: None known. Unknown Characters: 1-20, 23-26, 28, 32-34, 39, 40, 42-72, 74-76, 78, 80-82. ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—69,1; 71,2; 72,2. REMARKS.—The species was well characterized by Grube; but some crucially important features were not mentioned by Grube. It has been included in Tables 19 and 20 with similar species, but has been excluded from the key. Eunice savignyi cannot be distinguished from similar species without examination of fresh material. The original specimen came from an unnamed locality in the Philippines. Eunice schemacephala Schmarda, 1861 Eunice schemacephala Schmarda, 1861:132, 7 figs., pi. 32: fig. 260.—Ebbs, 1966:527-534, fig. 9a-j. Staurocephalus gregaricus Mayer, 1900:1. IMayeria gregaricus.—Merrill, 1900:650. REMARKS.—Schmarda's original description and illustrations identify the species as a member of the genus; the only relatively unique feature appears to be the short, unidentate appendages of the compound falcigers. Ebbs identified the species with the Atlantic palolo. However, the shape of the appendages of the compound falcigers is not unique to this species, nor does the color pattern described by Ebbs agree with that illustrated by Schmarda. Mayer described the Atlantic palolo as Staurocephalus gregaricus; Verrill (1900) moved this species into a new genus,
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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,
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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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NUMBER 523 241 proximally cylindric
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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 and 304: NUMBER 523 291 antennae, without ar
Page 307: NUMBER 523 295 Jaws not examined. B
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
Page 355 and 356: NUMBER 523 343 3 A of total peristo
Page 357 and 358: 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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