. A manual of zoology. Zoology. 3S2 ARTHROPODA , arc united as SCHIZOSOMI because the last thoracic segment is free from the carapace and its appendages are rudimentary. LEI'COSOIDEA (Oxystomata). Bodv o\al or triangular, area of mouth parts triangular. Cahippa, Hcpali's/''' OXYRHYXCHA (Maioidea). Cephalothorax tri- angular, narrowed in front; mouth area l,as in the following tribes) Fig. 407.—B, Libinia cmarj^iiiala* spider crab (,from Emertoii). Mostly tropical. Hxasr Lihiiiia,''-' Pugcttia,'^ spider crabs. CY'CLOME- TOPA. Body broader than long, arcuate in front.
. A manual of zoology. Zoology. 3S2 ARTHROPODA , arc united as SCHIZOSOMI because the last thoracic segment is free from the carapace and its appendages are rudimentary. LEI'COSOIDEA (Oxystomata). Bodv o\al or triangular, area of mouth parts triangular. Cahippa, Hcpali's/''' OXYRHYXCHA (Maioidea). Cephalothorax tri- angular, narrowed in front; mouth area l,as in the following tribes) Fig. 407.—B, Libinia cmarj^iiiala* spider crab (,from Emertoii). Mostly tropical. Hxasr Lihiiiia,''-' Pugcttia,'^ spider crabs. CY'CLOME- TOPA. Body broader than long, arcuate in front. , with last pair of feet pointed. Cancer,'^ shore crab; Panopcus* mud crab. , •with last pair of feet flattened [saddles. Xcptuiiiis Inislatiis.'^ Avhen thin-skinned after molting, is 'soft-shell crab.' C.\ Front of carapace nearly straight; body from above nearly quadrilateral; Gclasiiinis,'^ tiddler crabs, Piiinotlicrcs ostrcuin,'^ common in oysters; Gec.^ (Uca, etc.), land crabs of the tropics, which only go to the sea at the reproductive season to lay their eggs. Order IV. Cumacea. Small marine forms with sessile eves, three or four free thoracic somites; appendages biramous; a lirood sac beneath the cephalothorax. Of interest because combining arthrostracan and thoracostracan features. Didstvlis*. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hertwig, Richard, 1850-1937; Kingsley, J. S. (John Sterling), 1854-1929, ed. and tr. New York, H. Holt
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1912
