A Review of the Genus Eunice - Smithsonian Institution Libraries

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122 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY . d, t, h r a, c, FIGURE 38.—Eunice dilatata (holotype, ZMB 896): a, parapodium 6, anterior view; b, anterior end, lateral view; c, parapodium 81, anterior view; d, compound falcigcr, parapodium 6; e, subacicular hook, parapodium 81; f, pectinate seta, parapodium 81. Eunice djiboutiensis (syntype, MNHN, Paris): g, subacicular hook, parapodium 260; h, pectinate seta, parapodium 260; i, parapodium 260, anterior view. (Scale bars in mm.)
NUMBER 523 123 a wide triangular base, nearly scoop-shaped. Ventral cirri basally inflated in branchial region; bases ovate; narrow tips tapering. Anterior notopodial cirri basally distinctly inflated with a narrowed attachment to body wall. Notopodial cirri decreasing in length in branchial region, retaining similar shape in all setigers. Notopodial cirri without articulations. Limbate setae slender, nearly capillary. Pectinate setae (Figure 38f) in thick fascicles. Shafts wide, cylindrical. Blades narrow, tapering, furled. Both marginal teeth longer than other teeth; with -15 teeth. Prebranchial setigers with compound falcigers in thick fascicles; numbers of falcigers decreasing posteriorly; in last segments present only 4 or 5 in each parapodium. Shafts (Figure 38d) tapering and marginally serrated, with distinct beaks. Appendages large, head distinct, bidentate. Proximal teeth smaller than distal teeth, narrowly tapering, directed laterally. Distal teeth long, slender, blunttipped, directed obliquely distally. Guards symmetrically bluntly pointed, marginally coarsely serrated; mucros absent. Pseudocompound falcigers and compound spinigers absent. Aciculae single, dark yellow in anterior setigers, darkening to dark brown in last segments, tapering to smooth, sharp tips; cross-section round. Subacicular hooks (Figure 38e) brown, bidentate. Hooks first present from setiger 28, present in all setigers thereafter, always single (except for replacements). Hooks distally abruptly tapered. Proximal teeth larger than distal teeth, directed laterally. Distal teeth erect. UNKNOWN MORPHOLOGICAL FEATURES.—Relationship between Mx III and left Mx IV; features associated with far posterior setigers, including branchial distribution; pygidium and anal cirri. EXPECTED STATES OF SELECTED UNKNOWN FEATURES.— Mx III forms part of distal arc with left Mx IV; branchiae continued to near posterior end. CHARACTERS USED IN PREPARATION OF KEY NOT SCORED.—Inappropriate Characters: 22, 56. Unknown Characters: 1,2,36,38,40,42,47,50,51,57-60,63,74,78. ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—37,1; 38,1. REMARKS.—The strongly flattened body and the large numbers of compound hooks in anterior setigers are features often present in the genus Marphysa. Other features, most importantly the presence of peristomial cirri, align the species with the genus Eunice. It is listed with similar species in Tables 33 and 38 and can be separated from all other species in these tables by the body form. 53. Eunice djiboutiensis Gravier, 1900 FIGURE 38g-i; TABLES 27,28 Eunice aphroditois djiboutiensis Gravier, 1900:224-229, figs. 73-77, pi. 13: figs. 63, 67. MATERIAL EXAMINED.—One syntype, MNHN, Paris, Djibouti, coll. Jousseaume and Goudieu, 1897. COMMENTS ON MATERIAL EXAMINED.—The anterior end has been flattened and details of the prostomium and peristomium are difficult to distinguish. Gravier originally had two specimens. DESCRIPTION.—Syntype with 318 setigers, missing a few setigers posteriorly; length 320 mm; maximal width 10 mm at setiger 10; length through setiger 10,20 mm. Body cylindrical, very stiff, dark reddish brown. Prostomium distinctly shorter than peristomium. Prostomial lobes apparently frontally rounded, dorsally slightly inflated; median sulcus deep. Eyes at bases of A-I. Antennae in a straight line, evenly spaced, similar in thickness. Ceratophores ringshaped in all antennae, without articulations. Ceratostyles incomplete, apparently digitiform, rather thick, without articulations. No antennae projecting beyond peristomium. Peristomium massive, cylindrical; lower lip and nuchal folds scalloped. Separation between rings distinct dorsally and ventrally; anterior ring 8 /9 of total peristomial length. Peristomial cirri to middle of anterior peristomial ring, without articulations, basally inflated, tapering to thick, digitiform tips, without articulations. Maxillary formula according to Gravier (1900:227-228) 1+1,5+6, 6+0,4+8, and 1+1. Branchiae (Figure 38i) present, pectinate, distinctly longer than notopodial cirri, not reduced in mid-body region, erect. Branchiae from setiger 5 to end of specimen. All branchiae with two or more filaments; maximum 25 filaments; number of filaments reduced slowly posteriorly to about 5. Branchiae longer than notopodial cirri in anterior 2 /3 of body; posterior notopodial cirri clearly longer than branchiae. Total length of branchiae is less than l /2 body width in all setigers. Anterior stems short, thick, tapering stiff; posterior stems slender, digitiform. Filaments thick, digitiform, shorter than notopodial cirri. Anterior neuropodial acicular lobes wide and truncate; posterior acicular lobes also truncate, but narrower with aciculae emerging above midline. Pre- and postsetal lobes low folds. First 5 ventral cirri thick, tapering, thereafter modestly basally inflated through next 20-30 setigers. Inflated bases ovate, narrow tips digitiform. Inflated bases gradually reduced; ventral cirri broadly transversely attached tapering to digitiform tips in last 150 setigers. Notopodial cirri basally inflated, tapering to thick, digitiform tips, without articulations. Limbate setae frayed marginally. Pectinate setae (Figure 38h) numbering up to 25 in a parapodium. Shafts wide, cylindrical. Blades flat, flaring. One marginal tooth longer than other teeth; with 15-25 teeth. Shafts of compound falcigers at least as thick as aciculae, tapering, marginally smooth, copper-colored. All appendages lost, illustrated by Gravier (1900, fig. 76) as short, triangular, bidentate. Proximal teeth short, directed obliquely distally; distal teeth nearly erect; small bosses apparently present between proximal and distal teeth. Guards asymmetrically bluntly pointed; mucros absenL Pseudocompound falcigers and compound spinigers absent. Acicu-
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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
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 and 126: NUMBER 523 113 45. Eunice complanat
Page 127 and 128: NUMBER 523 FIGURE 35.—Eunice cong
Page 129 and 130: NUMBER 523 117 REMARKS.—Eunice co
Page 131 and 132: NUMBER 523 119 50. Eunice curticirr
Page 133: NUMBER 523 121 Anterior neuropodial
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 and 182: NUMBER 523 169 85. Eunice hawaiensi
Page 183 and 184: NUMBER 523 171 105 setigers; total
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NUMBER 523 173 dorsally and especia
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NUMBER 523 175 FIGURE 57.—Eunice
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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 523 203 TABLE 6.—Variable
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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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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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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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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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