A Review of the Genus Eunice - Smithsonian Institution Libraries

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114 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY slender tips, at least as long as notopodial cirri in all except first few branchiated setigers. Anterior neuropodial acicular lobes rounded, from about setiger 10 becoming increasingly obliquely conical with aciculae emerging dorsal to midline. All presetal lobes low, transverse folds. Anterior postsetal lobes about as high as acicular lobes following outline of acicular lobes closely; median and posterior postsetal lobes low folds. First 8 or 9 ventral cirri thick and tapering. Median ventral cirri basally inflated. Inflated bases spherical; narrow tips short, nearly button-shaped. Inflated bases reduced posterior to setiger 35, absent in mid-posterior fragments; ventral cirri tapering in posterior setigers. All notopodial cirri slender and tapering, without articulations. Limbate setae slender, nearly capillary with very narrow, smooth limbations. Pectinate setae (Figure 34m) very small, flat, flaring. One marginal tooth larger than other teeth; total of 10 teeth present. Shafts of compound falcigcrs (Figure 34n) distally very slightly inflated and marginally serrated. Appendages slender, with a very large head, bidentate. Proximal teeth triangular, directed laterally; distal teeth sharply bent, truncate. Guards symmetrically rounded, with sharply pointed mucros, serrated along the cutting edge. Pseudocompound falcigers and compound spinigers absent. Aciculae (Figure 34p) paired, slender, yellow, tapering distally to slender, slightly curved or bent tips; cross-section round. Separation between core and sheath indistinct in both aciculae and subacicular hooks. Subacicular hooks (Figure 34o) yellow, tridentate with teeth in a crest. Hooks first present from setiger 33, present in all setigers thereafter, always single (except for replacements). Hooks slender, with large, triangular main fangs and smaller teeth decreasing relatively evenly in size distally. UNKNOWN MORPHOLOGICAL FEATURES.—Features associated with 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, 56, 58, 59. Unknown Characters: 1,2,16, 17, 23, 27-29, 37, 38,42. ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—37,1; 38,1. REMARKS.—Eunice congesta was considered a synonym of E. vittata by Imajima and Hartman (1964:258); it is listed with similar species in Tables 41 and 45. In addition to E. congesta, E. mucronata has more than 15 branchial filaments. The two species are very similar and cannot be safely separated on the characters used in the key. 47. Eunice conglomerans Ehlers, 1887 FIGURE 35a-i; TABLES 33,36 Eunice conglomerans Ehlers, 1887:93-95, pi. 23: figs. 1-9, pi. 24: figs. 1-4. MATERIAL EXAMINED.—One syntype, MCZ 706, Blake sta 10, 24°44X 83°26'W, 68 m. Two syntypes, ZMB 6730, Key West, 2-3 m, coll. A. Agassiz. DESCRIPTION.—MCZ syntype complete with 166 setigers; total length 163 mm; maximal width 3.5 mm at setiger 10; length through setiger 10, 6.5 mm. Ventrum flattened in anterior 2 h of body; dorsum strongly convex, especially in anterior x h of body except cylindrical prostomium and peristomium. ZMB syntypes both incomplete with 228 and 223 setigers; a posterior fragment encased in thick, pergamentaceous tubes also present. Prostomium (Figure 35a) distinctly shorter than peristomium, about as wide as peristomium, as deep as V2 of the peristomium. Prostomial lobes frontally obliquely truncate, dorsally flattened; median sulcus deep. Eyes small, black, posterior to bases of A-I. Six antennae present; A-III apparently duplicated. Antennae arranged in a straight line, evenly spaced, similar in thickness. Ceratophorcs ring-shaped in all antennae, without articulations. Ccratostylcs digiliform, with 5 articulations in A-I I and A-I 11 and 4 in A-I; all articulations cylindrical. All antennae similar in length, barely reaching posterior margin of peristomium. Pcristomium cylindrical wiih scoop-shaped projecting lower lip. Separation between rings distinct dorsally; vcntrally pcristomium also divided into 2 rings, but connection between dorsal and ventral transverse grooves uncertain; anterior ring 4 /s of total pcristomial length. Pcristomial cirri short and tapering, without articulations. Maxillary formula of both ZMB specimens 1 + 1, 5+5, 6+0, 2+6, and 1+1. Left Mx IV very small, curving around Mx III, appearing nearly fused to Mx III. Branchiae present, palmate, distinctly longer than notopodial cirri, not reduced in mid-body region. Branchiae from setiger 29 (from setigers 23 and 27 in other specimens) to setiger 165. Branchiae present to near posterior end, present on more than 65% of total number of setigers. Most branchiae with 2 filaments; maximum 4 filaments from about setiger 130. Branchial stems short, flexible and conical. Filaments long, robust, strongly wrinkled with very large internal blood vessels. Anterior neuropodial acicular lobes asymmetrically rounded with aciculae emerging from distal end above midline; median and posterior acicular lobes (Figure 35b,c) becoming symmetrically conical posteriorly. All pre- and postsetal lobes low folds. First 4 ventral cirri thick and tapering. Ventral cirri becoming inflated with large, transverse welt-like glandular bases from about setiger 5; narrow tips tapering. From about setiger 100, basal inflations decreasing in importance. Far posterior ventral cirri thick, digitiform and held curved up along the posterior face of parapodia (Figure 35c); glandular contents of ventral cirri retained (apparently) even in these posterior segments. Anterior notopodial cirri thick, basally inflated and tapering, becoming distinctly digitiform from beginning of branchial region; far posterior notopodial cirri slender and digitiform; all notopodial cirri without articulations. Limbate setae long, slender, rare in posterior setigers. Most
NUMBER 523 FIGURE 35.—Eunice conglomerans (syntype, MCZ 706): a, anterior end, lateral view; b, parapodium 35, anterior view; c, parapodium 134, posterior view; d, appendage, compound falciger, parapodium 10; e, subacicular hook, parapodium 35; f, compound falciger, parapodium 35; g, pectinate seta, parapodium 35; h, compound falciger, parapodium 10; i, acicula, parapodium 35. Eunice contingens (holotype, USNM 19394): j, parapodium 3, anterior view; k, parapodium 19, anterior view; 1, parapodium 40, anterior view; m, pectinate seta, parapodium 3; n, compound falciger, parapodium 3; o, pectinate seta, parapodium 19; p, pectinate seta, parapodium 40; q, subacicular hook, parapodium 40; r, compound falciger, parapodium 40. (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,
Page 75 and 76: NUMBER 523 63 .02 1 .1 f, y, h C FI
Page 77 and 78: NUMBER 523 65 midline. Pre- and pos
Page 79 and 80: NUMBER 523 67 Subacicular hooks (Fi
Page 81 and 82: NUMBER 523 69 REMARKS.—Eunice arm
Page 83 and 84: NUMBER 523 71 REMARKS.—Eunice art
Page 85 and 86: NUMBER 523 73 FIGURE 17.—Eunice a
Page 87 and 88: NUMBER 523 75 • 02 , d a FIGURE 1
Page 89 and 90: NUMBER 523 77 Proximal teeth larger
Page 91 and 92: NUMBER 523 79 FIGURE 20.—Eunice b
Page 93 and 94: NUMBER 523 81 been unable to see th
Page 95 and 96: NUMBER 523 83 in 120-150 m depth. T
Page 101 and 102: NUMBER 523 89 FlOURE 24.—Eunice b
Page 103 and 104: NUMBER 523 91 compound falcigcrs (F
Page 105 and 106: NUMBER 523 93 EXPECTED STATE OF UNK
Page 109 and 110: NUMBER 523 97 FIGURE 29.—Eunice c
Page 111 and 112: NUMBER 523 99 TABLE 3.—Variable a
Page 113 and 114: NUMBER 523 101 characters, best exp
Page 115 and 116: NUMBER 523 103 diagnostic." As indi
Page 117 and 118: NUMBER 523 105 FIGURE 31.—Eunice
Page 119 and 120: NUMBER 523 107 very short. Shafts s
Page 121 and 122: NUMBER 523 109 Presetal lobes low,
Page 123 and 124: NUMBER 523 111 which are similar to
Page 125: NUMBER 523 113 45. Eunice complanat
Page 129 and 130: 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 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
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NUMBER 523 165 24, present in all s
Page 179 and 180:
NUMBER 523 167 FIGURE 54.—Eunice
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NUMBER 523 169 85. Eunice hawaiensi
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NUMBER 523 171 105 setigers; total
Page 185 and 186:
NUMBER 523 173 dorsally and especia
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Page 189 and 190:
NUMBER 523 177 Filaments slender. N
Page 191 and 192:
NUMBER 523 179 tween Mx III and lef
Page 193 and 194:
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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Page 213 and 214:
NUMBER 523 201 near posterior end,
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NUMBER 523 203 TABLE 6.—Variable
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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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Page 227 and 228:
Page 229 and 230:
NUMBER 523 217 EXPECTED STATES OF U
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Page 233 and 234:
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,
Page 239 and 240:
NUMBER 523 227 126. Eunice multicyl
Page 241 and 242:
Page 243 and 244:
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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Page 253 and 254:
NUMBER 523 241 proximally cylindric
Page 255 and 256:
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
Page 261 and 262:
NUMBER 523 249 DESCRIPTION.—Body
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Page 265 and 266:
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
Page 275 and 276:
NUMBER 523 263 papeetensis has expa
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Page 279 and 280:
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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Page 289 and 290:
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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Page 297 and 298:
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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Page 307 and 308:
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
Page 329 and 330:
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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Page 337 and 338:
NUMBER 523 325 from setiger 5 throu
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NUMBER 523 327 appendages long, kni
Page 341 and 342:
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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Page 349 and 350:
NUMBER 523 337 always single (excep
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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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Page 385 and 386:
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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.
Page 423 and 424:
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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