. The Quarterly journal of the Geological Society of London. e. Middle of cervical groove. /. Lateral angles (posterior) of carapace. g. Median ridge of carapace. h. Lateral ridges. i. „ margin of carapace. 7c. Indication of appendage. /. Pleurae of abdominal somites. m. Portion of rostrum. ( The letters refer to the same parts in all the figures.)* Sheet 41, Scotland. t Trans. Roy. Soc. Edinb. vol. xxii. p. 391. 878 e. etueridge, jun., on a lower-carboniferous decapod. Discussion. Mr. H. Woodward expressed his gratification at the discovery ofthis interesting Crustacean by Mr. Ethcridge,
. The Quarterly journal of the Geological Society of London. e. Middle of cervical groove. /. Lateral angles (posterior) of carapace. g. Median ridge of carapace. h. Lateral ridges. i. „ margin of carapace. 7c. Indication of appendage. /. Pleurae of abdominal somites. m. Portion of rostrum. ( The letters refer to the same parts in all the figures.)* Sheet 41, Scotland. t Trans. Roy. Soc. Edinb. vol. xxii. p. 391. 878 e. etueridge, jun., on a lower-carboniferous decapod. Discussion. Mr. H. Woodward expressed his gratification at the discovery ofthis interesting Crustacean by Mr. Ethcridge, but could not feelsure that it was a new species, although it may be so, as it occursso much lower down than any of those hitherto found. The mostinteresting point in this specimen is the exposure of the gills by theremoval of the carapaoo, showing clearly its affinity to the highestforms of Crustacea, in which the respiratory organs are entirely re-moved from the feet and enclosed in special cavities. Quart. Journ. Geol. XXVII. Pig . la- , e-. <// p-m h-\ f.
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