Guide to the Crustacea, Arachnida, Onychophora and Myriopoda exhibited in the Department of Zoology, British Museum (Natural History) .. . mprises the Eiver-Cral)s. In the shape of the carapace, which is generally more orless square, and in having the front bent downwards, these Crabsshow some resemblance to the next Tribe, Catometopa. They arewidely distributed in fresh waters throughout the Tropics. Potamoiiedulc (better known as Thelphiisn Jlii7-i<itilis) occurs in Italy andother parts of Southern Europe. The family Corysddae includes Cnibs which are allietl to IheCanci-idae, but have lo
Guide to the Crustacea, Arachnida, Onychophora and Myriopoda exhibited in the Department of Zoology, British Museum (Natural History) .. . mprises the Eiver-Cral)s. In the shape of the carapace, which is generally more orless square, and in having the front bent downwards, these Crabsshow some resemblance to the next Tribe, Catometopa. They arewidely distributed in fresh waters throughout the Tropics. Potamoiiedulc (better known as Thelphiisn Jlii7-i<itilis) occurs in Italy andother parts of Southern Europe. The family Corysddae includes Cnibs which are allietl to IheCanci-idae, but have long aiiteiniae, and the third niaxilhpeds are Decapoda—BracJiynra. 73 rlonj^ated, extending over the front edge of the mouth-frame. The Table-caselatter character recalls the Oxystoniata, which the members of this ?^°- ^^•family also resemble in their sand-burrowing habits. CorjidcH(?(issivelaunus (Fig. 49) is a common British species. The clawsor chelipeds are much elongated in the male. The antennaeare much longer than is usual in the Brachyura, and each bearsa double row of bristles so arranged tliat when the antennae are. Female. Male. Fir,. cassivclaiiiius (slightly reduced). ; Table-case No. 15.] brought together they form a tube, through whicli respiration canbe carried on while the animal is Ijuried in sand. In tlie trilie Catomktopa the carapace is typically more or lessquadrate, with the front strongly bent downwards ; tiie mouth-frame is square ; the genital ducts of the male open on the large proportion of the Cral)s belonging to this tribe live onland, in fresh water, or between tide-marks on tropical the chief families are illustrated in this Case. The family Gcocarcinidae (or Gccarcinulae) comprises the trueLaud-Ciabs, although some members of the other families also Table-caseNo. 16. 74 Guide to Crustacea. Table-case are almost entirely terrestrial in habits. The carapace is more orNo. 16. jggg transversely oval, and the fro
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectcrustacea, bookyear19
