. The cyclopaedia; or, Universal dictionary of arts, sciences, and literature. Encyclopedias and dictionaries. C A N C E R. things it would be impofllble to purfue iny oftboi adopted. 'I' which he propoiei nearly as poflible to Hi-' 1 linncan method. . | i the plain and fimple rules oi fubdividing the cancri into families rathei than general as laid down by Linnaeus, i iitld be com adhered to, hia example ii followed | the principal devia* Hon:, an 'ii thofe inltancei when alteration bai bi i ren. dered neceffary by the difcoverii em naturaltfls in this tribe of animalsi and which areol to
. The cyclopaedia; or, Universal dictionary of arts, sciences, and literature. Encyclopedias and dictionaries. C A N C E R. things it would be impofllble to purfue iny oftboi adopted. 'I' which he propoiei nearly as poflible to Hi-' 1 linncan method. . | i the plain and fimple rules oi fubdividing the cancri into families rathei than general as laid down by Linnaeus, i iitld be com adhered to, hia example ii followed | the principal devia* Hon:, an 'ii thofe inltancei when alteration bai bi i ren. dered neceffary by the difcoverii em naturaltfls in this tribe of animalsi and which areol too much confequence to be overlooked. The edition of the SvUcma Naturae com- prifea only a final] number of the fpectei of cancer .it pre- lent known : his genus cancer i:. divided into feveral families, in which the whple of hia crabs, lobflers, parafitic crabs, &c. are included. The Cancbr genus is thus defcribed. 1 eight, (rarely fix, or ten) and two chelate hand-claws, or claws furnifhed with a moveable pincer; feelers Gx, unequal; eyes two, for the nioft part placed on peduncles, elongated, and moveable; mandibles horny and thick; lip triple; tail jointed, and unarmed.âThe crabs are feparatcd into two principal icclions, brachyuri, crabs with Ihort tails, and macrouri, crabs with long tails, both which are again divided into feveral families. The cruftacea are divided by Fabricius into many genera. The Linnxan cancri form a diftinct clafs called agonata, in the Genera Inle&orum ol that writer, and comprehend live genera, namely, cancer, pagurus, fcyllarus, aftacus, andgam- inarus. His agonata clafs, in Entomologia Syflematica, contains eight genera, crabs, hippa, fquilla, and galathea being added to the preceding, befides fome other families of cruftaceous animals, as limulus, cymothoa, and monoculus. The fame author, in a later work than the foregoing Supple- mentum Ent. Syft. retains part of the Linnoean cancri toge- ther in his new clafs kleijlagna
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Keywords: ., bookcentury1800, bookdecade1810, booksubjectencyclo, bookyear1819
