A guide to the fossil invertebrate animals in the Department of geology and palaeontology in the British museum (Natural history) . he most familiarrepresentative is the wood-louse, butmost isopods are marine and some in-habit fresh water. The flattened bodyhas a small head-shield (not a carapace)^ monWoodwardi,Lo^et which are flexibly ioined seven tho- Coal Measures, Lan- . ^ i • i • x- cashire. a, antennuie; i^^cic Segments, bearing each a pair ofa, antenna; o, stalked walking legs ; plates attached to theeye; c/, furrow separa- 13^363 of these linibs fomi a brood-DOUch tmg head-shield from
A guide to the fossil invertebrate animals in the Department of geology and palaeontology in the British museum (Natural history) . he most familiarrepresentative is the wood-louse, butmost isopods are marine and some in-habit fresh water. The flattened bodyhas a small head-shield (not a carapace)^ monWoodwardi,Lo^et which are flexibly ioined seven tho- Coal Measures, Lan- . ^ i • i • x- cashire. a, antennuie; i^^cic Segments, bearing each a pair ofa, antenna; o, stalked walking legs ; plates attached to theeye; c/, furrow separa- 13^363 of these linibs fomi a brood-DOUch tmg head-shield from ^ -, i • i carapace, c; ah, abdo- for eggs and young; the abdomen, which men; t, telson. En- bears giU-plates, is reduced in size, its larged 2 diani. (From segments partially fused, with a rela- H. Woodward, Geol. .^ . , /. i-, -r4- , Mag., 1905.) tively large tail-shield. Here are shown fragments of the large Prearcturus, from Table-ease the Devonian near Hereford, whose isopod nature may be Wall^case Q.^^stioned. Cyclosphaeroma, however, from the Jurassic 13b. rocks of ^Northampton and Solenhofen, is an undoubted. Fig. 147. — Anthrapah AETHEOPODA—CEUSTACEA. 97
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Keywords: ., bookauthorbr, bookcentury1900, bookdecade1900, booksubjectfossils
