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"Liphistius desultor, Schiodte, one of the Araneae Mesothelae. Dorsal view. I to VI, the prosomatic appendages; 4, 5, 6, the fourth, fifth and sixth tergites of the opisthosoma. Between the bases of the sixth pair of limbs and behind the prosomatic carapace is seen the tergite of the small prae-genital somite." — The Encyclopedia Britannica, 1910

Liphistius Desultor

"Liphistius desultor, Schiodte, one of the Araneae Mesothelae. Dorsal view. I to VI, the prosomatic…

"Liphistus desultor, Ventral view with the prosomatic appendages cut short expecting the chelicerae (1) whose sharp retroverts are seen. Between the bases of the prosomatic limbs an anterior and a posterior sternal plate (black) are seen. I, The sternum of the first opisthosomatic or genital somite covering the genital aperture and the first pair of lungsacs. In front of it the narrow waist is formed by the soft sternal area of the praegenital somite. 2, the sternite of the second opisthosomatic somite covering the posterior pair of lung-sacs; 3 and 4, the spinning appendages (limbs) of the opisthosoma; a, inner, b, outer ramus of the appendage; II, sternite of the eleventh somite of the opisthosoma: in front of it other rudimentary sternites; an, anus." — The Encyclopedia Britannica, 1910

Liphistius Desultor

"Liphistus desultor, Ventral view with the prosomatic appendages cut short expecting the chelicerae…

"Liphistius desultor. Lateral view. I to VI, Appendages of the prosoma cut off at the base. o, Ocular tubercle. praegen, The prae-genital somite. 1 and 2, Sternites of the first and second opisthosomatic somites. 3 and 4, Appendages of the third and fourth opisthosomatic somites, which are the spinning organs, and in this genus occupy their primitive position instead of migrating to the anal region as in other spiders. 5, Tergite of the fifth opisthosomatic somite. II, Eleventh opisthosomatic somite; an, Anus." — The Encyclopedia Britannica, 1910

Liphistius Desultor

"Liphistius desultor. Lateral view. I to VI, Appendages of the prosoma cut off at the base. o, Ocular…

"Liphistius desultor. Under side of the uplifted genital or first opisthosomatic somite of the female; g, genital aperture; p, pitted plate, probably a gland for the secretion of adhesive material for the eggs; l, the edges of the lamellae of the lung-books of the first pair." — The Encyclopedia Britannica, 1910

Liphistius Desultor

"Liphistius desultor. Under side of the uplifted genital or first opisthosomatic somite of the female;…

"Ventral view of a male mygalomorphous spider. I to VI, The six pairs of prosomatic appendages. a, Copulatory apparatus of the second appendage. a, Copulatory apparatus of the second appendage. b, Process of the fifth joint of the third appendage. M, Mouth. pro, Prosternite of the prosoma. mes, Mesosternite of the prosoma: observe the contact of the coxae of the sixth pair of limbs behind it; compare Liphistius where this does not occus. stg, Lung aperture. gn, Genital aperture. a, Anus with a pair of backwardly migrated spinning appendages on each side of it; compare the position of these appendages in Liphistius." — The Encyclopedia Britannica, 1910

Spider

"Ventral view of a male mygalomorphous spider. I to VI, The six pairs of prosomatic appendages. a, Copulatory…