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$Wetenschap - \Nijverheid- Handel$

76 Limnoria lignorum (Eathke). (PI. XXXI.) Cymothoa lignorum, Ratlike, Skrifter af Naturh. Selsk. Vol. 101, PI. 3, fig. 14. Syn: Limnoria tcrebrans, Leach. untinata, Heller. Specific Characters. Body, when fully extended, about 3 times as long as it is broad, and almost semi-cylindric in form, slightly tapering in front. Cephalon nearly globular, and partly covered above by the 1st segment of mesosonie, front obtusely rounded. First segment of mesosome considerably longer than the others and rather deep, forming below, on each side, a rounded lobe projecting over the lateral faces of the cephalon. Coxal plates fringed with ciliated bristles, the 2 {in- terior pairs oval quadrangular, the 4 posterior ones considerably larger, and produced to an acute corner pointing backwards. Metasome considerably exceeding half the length of the mesosome, and scarcely narrower, epimera triangular, projecting laterally; terminal segment about the length of the other 5 combined, and very broad, almost elliptical in form, posterior edge evenly arcuate and finely ciliated. Eyes comparatively small, rounded, with a limited number of large cornea;. Supe- rior antennee somewhat stronger than the inferior, with the flagellum extremely small, 3 -articulate, and carrying a dense fascicle of long sensory filaments. Inferior antenna1 with the flagellum about half the length of the peduncle, and composed of 5 articulations, the 1st of which is much the largest. First pair of legs somewhat larger than the next succeeding ones, but otherwise of the very same structure, meral and carpal joints in most of the legs strongly tubercular inside. Last pair considerably more slender than the others, and without any tubercles. Dactylus in all legs distinctly bi-articulate, the 1st joint having at the end inside, a bidentate unguiform spine. Uropoda with the .basal part strongly tuberculated outside, and projecting between the rami to an acute projection, outer ramus short, unguiform, turned outwards, inner sublinear, about the length of the basal part, and terminating in a dense bunch of slender bristles. Colour light greyish brown, with darker brown pigmentary ramifications. Length of adult animal 5 mm. Remarks. This form was described by Kathke as early as in the year 1799 as Cymothoa lignorum. By subsequent authors, it has generally been re- corded under the name given to it by Leach, viz., Limnoria terebrans. The Lim- noria imcinata of Heller, from the Adriatic, is undoubtedly identical with the northern species. Occurrence. I have found this form not infrequently in the Christiania Fjord, at Drobak and Moss, boring in immerged pieces of wood. A single
77 specimen was, moreover, taken by me many years ago at the Lofoten Islands. It thus appears that it occurs along the whole south and west coasts of Norway. Distribution. British Isles (Leach), Kattegat (Meinert), Dutch coast (Hock'. coast of France (Bonnier), Adriatic (Heller), Black Sea (Sowinsky), atlantic co;ist of North America (Harger).
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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
Page 65: Ta n a i d ae. G. 0. S ars, autogr
Page 69: Ta naid as. G.O. S ars, autogr. I s
Page 73: Is Ta n a i d as . G.O. S ars, auto
Page 77: Ta n a i d as. G.O. S srs, autogr.
Page 80 and 81: 40 1. Pseudotanais forcipatus (Lill
Page 82 and 83: 42 form; carpal spine of the succee
Page 84 and 85: 44 without distinct coxal plates. M
Page 86 and 87: 46 first 2 segments of mesosome som
Page 88 and 89: long sensory 48 filaments. Mandible
Page 90 and 91: 50 Fam. 2. Gnathiidae. r*. Body of
Page 92 and 93: 52 Praniza might be the female of A
Page 94 and 95: 54 2. Gnathia dentata, (PI. XXII. f
Page 96 and 97: 56 Distribution. Greenland (Kroyer)
Page 98 and 99: 58 Gen. 1. ^Ega, Leach, 1815. Gener
Page 100 and 101: 60 2. &g& tridens, Leach. (Pi. XXV,
Page 102 and 103: 62 the end of the propodos, inside
Page 104 and 105: 64 7. ^Ega ventrosa, (PL XXVI, fig.
Page 106 and 107: 66 spinules. Eyes very large, nearl
Page 108 and 109: 68 Remarks. The above diagnosis ref
Page 110 and 111: 70 hroad, coarsely spinous at the t
Page 112 and 113: 72 Anterior pairs of legs nearly as
Page 114 and 115: 74 mentary stars, arranged in trans
Page 118 and 119: Tribe 3. VALVIFERA. Remarks. The ch
Page 120: 80 E. Miers 1 ), the genus comprise
Page 123: Ta na i d SB. G.O. S ars, autogr. I
Page 127: Anthuridae. G.O. S ars, autogr . I
Page 131: Gnathiidae. G. 0. S BTS, autogr . I
Page 135: tgidae. G.O.Sars. autogr. I s opo d
Page 139: fegidae. G. 0. S ars, autogr . Is o
Page 143: G.O. S ars, autogr . I s opo da. PI
Page 147: Cirolanid I s opo da. PI. .,-.,..-
Page 151: Idotheidas. G.O. S ars, autogr . I
Page 154 and 155: 82 flagellum much shorter than the
Page 156 and 157: 84 he records as I. phosphor ca Har
Page 158 and 159: 86 Occurrence. The species has a di
Page 160 and 161: 88 Arc-torn* given by Latreille to
Page 162 and 163: 90 2. Astaeilla arietina, G. 0. Sar
Page 164 and 165: 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
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Munnopsidae. G.O. S ars, autogr , I
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Munnopsidas. 6. 0. S ars, autogr .
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IVlunnopsidae. G.O. S ars, autogr .
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Munnopsidae. G 0. S srs, autogr . I
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146 taken it very plentifully on a
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148 must also occur off the coasts
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150 the carpal one. dactylus minute
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152 orbicular in form, dactylus com
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154 The mandibles are strong, and a
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or less elongated, basal part not p
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158 Remarks. This genus, establishe
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160 thin, without air-chambers or a
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162 Occurrence. According to Mr. Bu
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of n little bowl of a spoon; that o
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166 clear golden yellow colour, wit
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168 the last peduncular joint, and
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170 broad and laminar, though scarc
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172 ramus narrow lanceolate, and ex
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174 Remarks. This form was first de
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176 Gen. 4. PorcelllO, Latr., 1804.
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178 wards, frontal lobe less promin
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180 4. Poreellio Rathkei, Brandt. (
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182 plates of only the 2 anterior p
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184 increasing in length posteriorl
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Munnopsidae. I s op i. G.O. S ars,
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Munnopsidae. G.O. S ars, autogr . I
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G.O. S ars, autogr . s op o Lig'ia
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Trichoniscidae. I s op o da. PI. 72
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Trichoniscidae. 1 S O ]3 O CLQ._ PI
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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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