Guide to the Crustacea, Arachnida, Onychophora and Myriopoda exhibited in the Department of Zoology, British Museum (Natural History) .. . copy of adrawing made from a living sp(?ci-men of another species, Pubjcltclcs?sculptus, dredged at a depth of 695fathoms in the Gulf of Panama,shows the red coloration that is verycharacteristic of deep-sea Crustacea. The fossil species are representedby a cast of Enjon arctiformis, fromthe Lithographic limestone (Jurassic)of Solenhofen in Bavaria. The members of the tribe Tha-LASSiNiDEA are burrowing forms,with a soft, loosely built body. Theyform, in som
Guide to the Crustacea, Arachnida, Onychophora and Myriopoda exhibited in the Department of Zoology, British Museum (Natural History) .. . copy of adrawing made from a living sp(?ci-men of another species, Pubjcltclcs?sculptus, dredged at a depth of 695fathoms in the Gulf of Panama,shows the red coloration that is verycharacteristic of deep-sea Crustacea. The fossil species are representedby a cast of Enjon arctiformis, fromthe Lithographic limestone (Jurassic)of Solenhofen in Bavaria. The members of the tribe Tha-LASSiNiDEA are burrowing forms,with a soft, loosely built body. Theyform, in some respects, a transitionto the Anomura, in which, in somesystems of classification, they areincluded. In the genus Calliaitas>ia, ofwhich one species, C. suhtcrranca,occurs on the south coast of England,one of the chelae of the first pair oflegs is much larger than the otherand is of peciiliar form. A specimenof the large C. armata from theFiji Islands is exhibited. Thalasshia anomala is a widelydistributed tropical species, especiallycharacteristic of mangrove swamps,but sometimes found burrowing inable distance from the Polychclcs phosjilioriis, female. (After Alcoek.) [Table-case No. damp earth at a consider- Sub-Okder 2.—anomura. The Anomura commonly have the abdomen more or less bent Table-caseunder the Iwdy, or else spirally coiled and asymmetrical. The * • • GO Guide io Cnisiacta. Table-case IVont, or rosLrum, is not united with tlio The sixth piiir°- ^^- of abdominal appendages ( uropodsj are rarely absent. The last pairof legs are reduced in size and the last thoracic sternum is Sub-order is divided into three tribes, of whicli the first,Paguridea, includes the Hermit-Crabs and their allies. With fewexceptions, the most important of which are the Coco-nut Crali,Birgus, and the family Lithodidae, the members of this tribe havethe abdomen soft, not distinctly segmented, and sj^irally twisted in
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectcrustacea, bookyear19
