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158 Remarks. This genus, established by Brandt, is chiefly distinguished from Ligia, by the abruptly contracted metasome, the less rudimentary state of the an- tennulffi, and the peculiar structure of the uropoda. The genus Zla of Koch is identical with the present genus. Several species have been described, amounting, according to Mr. Budde-Lund, to 8 in all. Only one species belongs Scandinavian fauna, and it will be described below. Ligidium hypnorum (Cuv.). (PI. LXXI.) Oniscus liypnornm, Gtivier, Journ. d'hist. nat. Vol. II, p. 19, pi. 26, figs. 3 5. Syn : Oniscus agilis, Persoon Ligia liypnorum, Bosc. Zia agilis, Koch ,. Ligidium Personii, Zadclach Zia Soundersii, Stebbing Ligidium agile, Norman. to the e Characters. Body oblong oval, greatest width not attaining half the length, dorsal face rather convex, and perfectly smooth and shining. Cephalon of moderate size, and evenly rounded in front, dorsal face transversely grooved behind the eyes. Lateral parts of the 3 anterior segments slightly prominent; those of the 4 posterior segments somewhat larger, of mesosome but and ter- minating behind in obtuse points. Metasome scarcely exceeding in length 1 /s of the mesosome, and much narrower, with the epimeral plates small and apprcssed; last segment obtusely rounded at the tip, with a slight angle on each side. Eyes very large, oval, extending down Ihe sides of the cephalon. Antennulse with the 1st joint rather thick, 2nd longer but much narrower, both armed at the tip inside with 3 rather long diverging spines, last joint very small, narrow cylindric. Antennae rather slender, though not nearly attaining half the length of the body, flagellum somewhat shorter than the peduncle, and composed of about 11 arti- culations, the last tipped with a dense bunch of delicate hair-like bristles. Legs armed with scattered slender spines, propodal joint very narrow and elongated. dactvlus simple. Inner plate of 1st pair of pleopoda in male slightly produced at the tip, and provided with 4 apical bristles. Uropoda scarcely exceeding half the length of the metasome, inner projection of the basal part occupying about halt' its length, outer ramus gradually tapering distally and carrying "ii the tip 3 short bristles, inner ramus very narrow, linear, not extending to the tip of the outer, apical bristles nearly as long as the ramus. Colour of dorsal face light fuscous, variegated with irregular dark patches, which on each side, at the base of the lateral plates of mesosome, form a nearly continuous longitudinal band. Length of adult female 9 mm.
159 Remarks. This form was first described by Cuvier in the year 1792 as Onlscus hypnorum, and by subsequent authors was referred to the genus Ligia, until Brandt established for it a distinct genus; but the original specific name was changed by that author, as also by most subsequent zoologists, excepting Mr. Budde-Lund, who again restored the Cuvierian name. It is an easily recogniz- able form, being particularly distinguished by the peculiar structure of the uropoda. From its nearest ally among the northern Oniscoida, Li
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AN ACCOUNT OF THE CRUSTACEA OF NORW
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BERGEN. JOHN GRIEG
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VI Copenhagen Museum, who have kind
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VIII H. J. Hansen. Oversigt af de p
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X C. Bovattius. Notes on the family
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thus meriting the name of true gnat
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Tribe 1. CHELIFERA. Body generally
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of legs. In the structure of the or
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8 fied with Apseudes talpa of Monta
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10 in female rather strong, hand ve
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12 flagellum. Inferior antennae a l
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14 Tanais, on separate lobes. Super
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16 Gen. 2. Paratanais, Dana, 1852.
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18 the genus Parataitais. Inferior
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20 robust than in T. tenuimanus, wi
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22 Remark*. - This form was first r
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24 free segment of mesosonie longer
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26 Occurrence. Only 2 female specim
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28 Distribution. -- Off Reykjavik,
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30 projection not denned from the b
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32 Imt slightly setous. Chelipeds s
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34 Cryptocope abbreviata, (PL XV, f
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Occurrence. I have met with this fo
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38 wholly absent, in male normally
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Apseudidee. G.O. S ars, autogr . I
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Ta na i d ae. 6.0. S ars, autogr. "
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Jar. aid se. G.O. S ars, autogr. I
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Ta n a i d ae. G. 0. S ars, autogr
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Ta naid as. G.O. S ars, autogr. I s
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Is Ta n a i d as . G.O. S ars, auto
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Ta n a i d as. G.O. S srs, autogr.
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40 1. Pseudotanais forcipatus (Lill
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42 form; carpal spine of the succee
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44 without distinct coxal plates. M
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46 first 2 segments of mesosome som
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long sensory 48 filaments. Mandible
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50 Fam. 2. Gnathiidae. r*. Body of
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52 Praniza might be the female of A
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54 2. Gnathia dentata, (PI. XXII. f
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56 Distribution. Greenland (Kroyer)
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58 Gen. 1. ^Ega, Leach, 1815. Gener
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60 2. &g& tridens, Leach. (Pi. XXV,
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62 the end of the propodos, inside
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64 7. ^Ega ventrosa, (PL XXVI, fig.
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66 spinules. Eyes very large, nearl
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68 Remarks. The above diagnosis ref
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70 hroad, coarsely spinous at the t
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72 Anterior pairs of legs nearly as
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74 mentary stars, arranged in trans
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76 Limnoria lignorum (Eathke). (PI.
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Tribe 3. VALVIFERA. Remarks. The ch
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80 E. Miers 1 ), the genus comprise
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Ta na i d SB. G.O. S ars, autogr. I
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Anthuridae. G.O. S ars, autogr . I
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Gnathiidae. G. 0. S BTS, autogr . I
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tgidae. G.O.Sars. autogr. I s opo d
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fegidae. G. 0. S ars, autogr . Is o
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G.O. S ars, autogr . I s opo da. PI
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Cirolanid I s opo da. PI. .,-.,..-
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Idotheidas. G.O. S ars, autogr . I
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82 flagellum much shorter than the
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84 he records as I. phosphor ca Har
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86 Occurrence. The species has a di
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88 Arc-torn* given by Latreille to
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90 2. Astaeilla arietina, G. 0. Sar
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92 Occurrence. It would seem to be
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Tribe k. ASELLOTA. Be-mark*. In the
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96 suture along the middle, and 2 l
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98 Fam. 2. laniridae. Characters. G
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U)0 peduncle. Kpignath of the maxil
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102 of 400 fathoms. Subsequently I
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104 length, without any distinctly
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106 Remarks. The type of this famil
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108 2. Munna limieola, G. 0. Sars.
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110 Inferior antenna?, as compared
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112 Paramunna bilobata, (PI. XLVII,
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114 hairs in their outer part, tip
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116 Gen. 4. DendrOtlOn, G. O. Sara,
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IdoiheidaB. G.O. S ars, autogr . I
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Arciuridaa. G.O. S srs, autogr I s
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Arcturidae. G.O. S ars, autogr I s
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Janiridse. G.O. S srs, autogr . I s
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laniridas. I s op o da.. PI. 42 G.
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Munnids. Is op o da.. PI. 44. G.O.S
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Munnidas- G.O. S ars, autogr I s op
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Munnidae. I s opo da- i. G. 0. S ar
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118 Fam. 4. Desmosomidae. Character
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120 ever, rather different, and ver
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122 middle, to a strong, recurved,
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124 short. Uropocla scarcely exceed
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126 form, with the proximal joints
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128 to he identical with a form pre
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130 the mandibles, in particular, i
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132 As our knowledge of this peculi
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134 with the carpal joint oblong fu
Page 240 and 241: 136 1. Ilyarachna longicornis, (PI.
Page 242 and 243: m 138 3. Ilyarachna denticulata, G.
Page 244 and 245: 140 antennae not quite twice as lon
Page 246 and 247: 142 Occurrence. I first discovered
Page 248: 144 Gen. 6. EliryCOpe, G. 0. Sars,
Page 251: Desmosomidae, I s op o da.. PI. 50.
Page 257: Desmosomidae 1 . G. 0. S ars, autog
Page 263: Munnopsidae. G.O. S ars, autogr , I
Page 267: Munnopsidas. 6. 0. S ars, autogr .
Page 271: IVlunnopsidae. G.O. S ars, autogr .
Page 275: Munnopsidae. G 0. S srs, autogr . I
Page 278 and 279: 146 taken it very plentifully on a
Page 280 and 281: 148 must also occur off the coasts
Page 282 and 283: 150 the carpal one. dactylus minute
Page 284 and 285: 152 orbicular in form, dactylus com
Page 286 and 287: 154 The mandibles are strong, and a
Page 288 and 289: or less elongated, basal part not p
Page 292 and 293: 160 thin, without air-chambers or a
Page 294 and 295: 162 Occurrence. According to Mr. Bu
Page 296 and 297: of n little bowl of a spoon; that o
Page 298 and 299: 166 clear golden yellow colour, wit
Page 300 and 301: 168 the last peduncular joint, and
Page 302 and 303: 170 broad and laminar, though scarc
Page 304 and 305: 172 ramus narrow lanceolate, and ex
Page 306 and 307: 174 Remarks. This form was first de
Page 308 and 309: 176 Gen. 4. PorcelllO, Latr., 1804.
Page 310 and 311: 178 wards, frontal lobe less promin
Page 312 and 313: 180 4. Poreellio Rathkei, Brandt. (
Page 314 and 315: 182 plates of only the 2 anterior p
Page 316: 184 increasing in length posteriorl
Page 319: Munnopsidae. I s op i. G.O. S ars,
Page 323: Munnopsidae. G.O. S ars, autogr . I
Page 327: G.O. S ars, autogr . s op o Lig'ia
Page 331: Trichoniscidae. I s op o da. PI. 72
Page 335: Trichoniscidae. 1 S O ]3 O CLQ._ PI
Page 339: Oniscidas. I s opo da. PI. 76. G.O.
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Oniscidae. I s op o da. PI. 78. : r
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Oniscidae. I s op o da. P! . 80. G.
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Armadillidiidas. I s op i. V., V^,.
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JBopyridae. I s opo da- t G.O S ars
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Bopyridae. G.O S ars, autogr. I s o
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Bopyridae. G. 0. S ars, autogr I s
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186 Remarks. The present genus, est
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188 above-described genus Cylisticu
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190 as it is very common both in Sw
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192 Side-plates of 1st segment of r
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apparent. In the latter case, the 3
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196 simple, conic; posterior antenn
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198 Occurrence. This form is found
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200 fully grown, the parasite cause
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nier to their genus 7 \/ la '//////
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204 tal lamella, the distal edge of
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206 able want of correctness, as re
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208 branchiata. In the female, more
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210 Remarks. The present genus is v
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212 soft metasome of this Crustacea
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214 Miiller ought to be referred to
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216 and to a 'great extent encompas
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218 The genus MiCrOmSCUS, Fritz Mii
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220 tary appearance, in the present
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222 as a rule, very small and somet
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224 as Boj>-t/r/is mys'ulum and by
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226 On a closer examination, will t
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228 area in front. Caudal part of b
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230 2 middle figures on PI. 96) are
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232 shorter than the inner. Male no
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Bopyridae. I s op i. G. 0. S ars, a
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Bo py rid as. I s op o PI. G.O. S .
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Dajidae. G. 0. S ars, autogr . I s
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Dajid as. Is op o PI. 96. G. 0. S a
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234 anal segment obtusely produced
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236 Gen. 2. CryptOthlr, Dana, 1852.
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238 Aseoniscus simplex, G. 0. Sars,
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240 anal segment rounded at the tip
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242 apparatus present, Male (or las
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244 at present to state, as they ar
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246 Cryptoniseid (PI. C, fig. 3). N
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248 much more advanced stage, the o
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250 Page 122. Add the following spe
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252 Page 129. Add the 3 following s
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254 the end of the caudal segment.
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Acanthocope Acherusia Page. 131 65
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Page. crassicornis 175 Isevis 161 M
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Page. tenuicornis 23 tenuimanus 18
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PL 16. G. o. Bars. 1. Strong-ylura
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PL 84. 1. Bopyrus sqvillarum (Latr.
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2b. p 7 . Same, leg of 7th pair, ex
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cf p 3 - Same, leg of 3rd pair, cfp
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Cryptoniscidce. G.O.Sars, autogr. 1
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Cryptoniscidae. 1 S C>p O Pi. 100 G
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Desmosomidae. I S Op O da. Suppl. G
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Desmosomidae. 1 S O p O CLQ- Suppl.
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An Account of The Crustacea of Norw
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