The entomologist's useful compendium; or an introduction to the knowledge of British insects. Comprising the best means of obtaining and preserving them, and a description of the apparatus generally used; together with the genera of Linné, and the modern method of arranging the classes...according to the views of Dr. Leach...with instructions for collecting and fitting up objects for the microscope / by George Samouelle, Associate of the Linnean Society of London.

George Samouelle

Date:: 1819

Credit: The entomologist's useful compendium; or an introduction to the knowledge of British insects. Comprising the best means of obtaining and preserving them, and a description of the apparatus generally used; together with the genera of Linné, and the modern method of arranging the classes...according to the views of Dr. Leach...with instructions for collecting and fitting up objects for the microscope / by George Samouelle, Associate of the Linnean Society of London. Source: Wellcome Collection.

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considerable dimensions. The abdomen is naked and slender, being covered merely with a skin of a delicate texture; but its extremity is furnished with appendages, by means of which it secures itself within the sheil of which it makes choice. It is really astonishing with what facility these animals move, bearing at the same time the shell, which is destined to preserve the body from injury and to guard them from the attacks of fishes, which would otherwise devour them. All the species are termed indiscriminately Soldier-crabs and Hermit- crabs, from the idea of their living in a tent, or retiring to a cell. Sp. 1. Pag. Streblonyx (common Soldier-crab). Arms hairy, muricated, the leit largest; hands subcordate, fingers broad. Cancer Bernhardus of Pennant and other English authors. Pagurus Stre- blonyx. Mal. Pedoph. Brit. tab. 26. fig.1 & 4. ‘Inhabits the European ocean, and is very abundant in the British seas, inhabiting various kinds of univalve shells, changing its habitation as itgrows. Pagurus araneiformis, Edinb. Encycl. vii. 396, is merely tne young of this species. Division I].— Tail on each side with foliaceous appendages, forming with the middie tail-process a fan-like fin. a. Interior antenne with very long footstalks, Fam. II. Patinuripz. Leach. External antenne setaceous, and very long: legs ten, alike and simple. Genus 20. PALINURUS. Dald., Fabr., Lam., Latr., Bosc, Leach. The animals of this genus have the power of producing a sound by rubbing their exterior antenna: against the sides of the projecting clypeus. : Sp.1. Pal. vulgaris. Astacus homarus. Penn. Brit, Zool. iv. 16.pl.11. Leach, Mal. Podoph. Brit, tab. 30. be inhabits the European ocean. Itis commonly eaten in London, and is sometimes denominated Spiny-lobster or Sea Cray-fish. Fam. III. GaLaTreapDs. External antenne very long and setaceous: legs ten, anterior pair didac- tyle, fifth pair spurious. -Genus 21. PORCELLANA. Lam., Latr., Bosc, Leach. External double palpi with the first joint of the internal footstalk di- lated internally: shell orbiculate subquadrate. Sp. 1. Por, platycheles. Anterior margin of the shell with three entire teeth: claws very large and much depressed: wrists internally den- ticulated; hands externally deeply ciliated. Cancer platycheles. Penn. Brit. Zool.iv.6. pl.6. & 12. Porcellana pla- tycneles. Lair. Leach, Edin. Encycl. vii.

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