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$Wetenschap - \Nijverheid- Handel$

180 4. Poreellio Rathkei, Brandt. (PI. LXXIX, fig. 1.) Poreellio Rathkei, Brandt, Consp monogr. Crust. Isop. terrestr. p. 15. fig. 10. Syn : Poreellio ferrugineus, Brandt. trilineatus, Koch. trivittatus, Lereb. tetramoerus, Sclmitzl. striatus, Schnitzl. syfaestris, Schobl. Specific Characters. Body oval, somewhat broader in female than in male, dorsal face rather convex and slightly tuberculated. Cephalon with the lateral lobes well developed, rounded, frontal lobe short, obtusely triangular. Side-plates of mesosorne of moderate size, subcontiguous, with the posterior corners obtusely acuminate. Metasome scarcely attaining l /4, of the length of the body, epimeral plates of 3rd to 5th segments well developed, recurved; last segment subtriangular, outer part acutely produced and plane above. Antennae rather slender, nearly attaining half the length of the body, flagellum about the length of the last peduncular joint, and having its proximal joint somewhat shorter than the distal one. Last pair of legs in male stronger than in female, with the carpal joint remarkably dilated near the base. Opercular plates of all the pleo- poda with air-cavities. Uropoda with the outer ramus broadly lanceolate, inner extending considerably beyond the last caudal segment. Colour of dorsal face somewhat variable, being in female, as a rule, lighter than in male, with irre- gular dark patches intermingled with some of a ferruginous hue, and more generally exhibiting a row of more or less distinct whitish patches on each side of the mesosome, at the base of the side-plates. Colour of male specimens generally dark slaty grey, with 3 longitudinal rows of whitish patches on the mesosome, the one median, the 2 other sublateral, and between these rows on each segment an assemblage of light, wavy stripes. Length of adult female 12 mm. Remarks. This species was first described under the above name by Brandt, but has subsequently been recorded under several other names, that proposed by Koch, trilineatus, having been more generally used. It may be distinguished from the preceding species by its comparatively convex body and the mutual longitudinal relation between the 2 articulations of the antennal flagellum. The colour, especially of female specimens, is rather variable, and has occasioned the establishment of several spurious species. In some cases it even changes to a rather uniformly light ferruginous hue, with scarcely any trace of the characteristic sublateral row of light patches. More generally, however, these
1S1 patches may be plainly seen, and in male specimens, as a rule, the median row is also easily distinguishable. Occurrence. In the neighbourhood of Christiania, monest Oniscoida, being found rather plentifully, not only this is one of the com- within the limits of the town, but also at rather great distance from it, on open fields beneath stones and pieces of wood. I have also taken it at Drobak and Skien, and have re- ceived specimens collected by Mr. Ellingsen at Fredrikstad and Kragero. It is rather active, and when disturbed, runs away at once to conceal itself, but it is not nearly so rapid in its motions as P. pictus, to which it bears some resem- blance in its variegated markings. Distribution. Northern, western and middle Europe, everywhere; Trans- caucasia, North America. 5. Porcellio laevis, La.tr. (PI. LXX1X, fig. 2.) Porcellio Iceris, LaireiJle, Hist. nat. des Crust. & Insectes. Vol. VII, p. 4H. Syn: Porcellio Degeerii, And. & Savign. eucercus, Brand i. syriacus, Brandt. niusculuft, Brandt. cinerasceiis, Brandt. flubius, Brandt. Poeyi, Guerin. wbicus, Koch. flaripes, Koch. cubensis, Sauss. sumichrasti, Sauss. cotillce, Sauss. aztecus, Sauss. mexicamis, Sauss. Specific Characters. Body oval, greatest width slightly exceeding half the length, dorsal face moderately convex and almost perfectly smooth. Cephalon with the_ lateral lobes well developed, rounded, frontal lobe obtusely triangular. Side-plates of mesosome subcontiguous, 1st pair considerably larger than the suc- ceeding ones, which have the posterior corners but slightly produced. Metasome not nearly attaining y4 of the length of the body, epimeral plates of 3rd to 5th segments of moderate size and slightly recurved ; last segment subtriangular, outer part acutely produced and slightly grooved above. Antennae very slender, equal- ling half the length of the body, tiageHum not attaining the length peduncular joint, and having the proximal articulation somewhat longer of the last than the distal one. Last pair of legs differing but little in the two sexes. Opercular
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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
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136 1. Ilyarachna longicornis, (PI.
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m 138 3. Ilyarachna denticulata, G.
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140 antennae not quite twice as lon
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142 Occurrence. I first discovered
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144 Gen. 6. EliryCOpe, G. 0. Sars,
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Desmosomidae, I s op o da.. PI. 50.
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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 290 and 291: 158 Remarks. This genus, establishe
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 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.
Page 343: Oniscidae. I s op o da. PI. 78. : r
Page 347: Oniscidae. I s op o da. P! . 80. G.
Page 351: Armadillidiidas. I s op i. V., V^,.
Page 355: JBopyridae. I s opo da- t G.O S ars
Page 359: 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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