A Review of the Genus Eunice - Smithsonian Institution Libraries

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238 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY TABLE 11.—Variable and invariable features of the type lot of Eunice nicidioformis (N = number of individuals examined; SD = standard deviation; measurements in mm). VARIABLE FEATURES N Max. Mm. Mean SD No. of setigers Total length Maximal width Length through 10 No. of antcnnal articulations No. of peristomial cirral articulations Branchiae first from setiger no. Last branchiae on setiger no. Ventral cirri inflated through setiger no. No. of notopodial articulations Subacicular hooks first present from setiger no. 10 10 10 10 9 10 9 9 10 10 10 97 47 2.2 6.5 15 10 8 50 26 6 25 58 25 1 4.2 5 4 6 19 12 4 14 86.70 36.15 1.80 5.21 10.22 8.60 6.56 32.00 21.80 4.30 21.40 11.15 7.39 0.33 0.67 2.77 1.78 0.73 10.32 3.91 0.67 3.03 INVARIABLE FEATURES Separation of rings Max. no. of branchial filaments Notopodial articulations present Acicular color Subacicular color No. of subacicular teeth Core-sheath construction N=10 visible donally and ventrally 1 anteriorly only brown brown 2 indistinct distinctly digitiform, abruptly tapering distally. Notopodial cirri longer than branchiae in all setigers. Limbate setae marginally smooth. Anterior pectinate setae (Figure 79g) tapering, flat, becoming slightly flaring in median and posterior setigers (Figure 79k). One marginal tooth distinctly longer than all other teeth; -10 teeth in anterior setigers; -15 teeth in median and posterior setigers. Shafts of compound falcigers (Figure 79h,l) tapering, marginally serrated. Anterior appendages slender, slightly tapering, bidentate. Proximal teeth shorter than distal teeth, triangular. Distal teeth slender, curved. Median and posterior appendages shorter than those in anterior setigers, more distinctly tapering, bidentate. Proximal teeth longer than distal teeth, tapering, rather than triangular. Distal teeth similar to those in anterior appendages. Guards asymmetrically bluntly pointed; mucros absent. Pseudocompound falcigers and compound spinigers absent. Aciculae paired, brown, tapering with blunt tips, slightly bent distally; cross-section round. Subacicular hooks (Figure 79m) brown, bidentate. Hooks first present from setiger 25 (setigers 19-26 in paratypes), present in all setigers thereafter, always single (except for replacements). Hooks curved, tapering. Proximal teeth larger than distal teeth, triangular, directed laterally. Distal teeth erect. UNKNOWN MORPHOLOGICAL FEATURES.—Pygidium and anal cirri. EXPECTED STATES OF UNKNOWN MORPHOLOGICAL FEA- TURES.—None. CHARACTERS USED IN PREPARATION OF KEY NOT SCORED.—Inappropriate Characters: 33, 34, 39-42, 56, 58, 59. Unknown Characters: 4,6, 74, 78. ASSUMED STATES FOR PURPOSE OF PREPARING KEY.— None. REMARKS.—Eunice nicidioformis is characterized by reduced branchial equipment, reflected in Treadwell's choice of specific name. The species is listed with similar species in Tables 24 and 25. The structure of the posterior branchiae is very unusual and may be unique in the genus; they form a vascularized sleeve around the base of the notopodial cirri in this species. In all other species of Eunice posterior single branchial filaments are similar to the anterior ones in structure in that they form a spur or a filament attached to the dorsal side of the notopodial cirrus or emerge directly from the body wall. In other features E. nicidioformis resembles E. gravieri as far as the features listed in the tables are concerned, but lacks the second pair of eyes described for the latter species. 135. Eunice nigricans Schmarda, 1861 FIGURE 80a-f; TABLES 27,29 Eunice nigricans Schmarda, 1861:131, 7 figs. Eunice macrobranchia.—Augcner, 1925:27-28 [in part, not Eunice macro - branchia Schmarda, 1861]. Eunice aphroduois.—HitVman, 1959:311 [not Nereis ophrodilois Pallas. 1788]. MATERIAL EXAMINED.—Holotype, ZMW, Inv. No. 1066, South of Port Royal, Jamaica, coll. L. K. Schmarda. DESCRIPTION.—Holotype complete with 180 setigers; total length 100 mm; maximal width 7 mm at setigers 25-30; length through setiger 10, 10 mm; width at setiger 10, 6 mm. Body strongly dorsoventrally flattened. Prostomium (Figure 80a) distinctly shorter and narrower than peristomium, as deep as x /i of the peristomium. Prostomial lobes frontally obliquely truncate, dorsally excavate with thickened rim; median sulcus deep. Eyes between bases of A-I
NUMBER 523 239 FIGURE 80.—Eunice nigricans (holotype, ZMW, Inv. No. 1066): a, anterior end, lateral view; b, parapodium 48, anterior view; c, compound falciger, parapodium 48; d, pectinate seta, parapodium 48; e, aciculae, parapodium 48; f, subacicular hook, parapodium 48. Eunice northioidea (holotype, USNM 15728): g, anterior end, lateral view; h, parapodium 19, anterior view; i, compound falciger, parapodium 19; j, pectinate seta, parapodium 19; k, subacicular hook, parapodium 41; 1, pectinate seta, parapodium 41; m, parapodium 41, 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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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
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 205 and 206: NUMBER 523 193 FIGURE 64.—Eunice
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 215 and 216: NUMBER 523 203 TABLE 6.—Variable
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
Page 245 and 246: NUMBER 523 233 tion between rings d
Page 247 and 248: NUMBER 523 235 ASSUMED STATES FOR P
Page 249: NUMBER 523 237 visible ventrally; a
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 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 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
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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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