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"Thelyphonus, one of the Pedipalpi. A, Ventral view. I, Chelicera (detached). II, Chelae. III, Palpiform limb. IV to VI, The walking legs. stc, Sterno-coxal process (gnathobase) of the chelae. st1, Anterior sternal plate of the prosoma. st2, Posterior sternal plate of the prosoma. pregen, Position of the pracgenital somite (not seen). l, l, Position of the two pulmonary sacs of the right side. 1 to 11, Somites of the opisthosoma (mesosoma plus metasoma). msg, Stigmata of the tergosternal muscles. an, Anus. B, Dorsal view of the opisthosoma of the same. pregen, The prae-genital somite. p, The tergal stigmata of the tergo-sternal muscles. paf, Post-anal segmented filament corresponding to the post-anal spine of Limulus." — The Encyclopedia Britannica, 1910

Thelyphonus

"Thelyphonus, one of the Pedipalpi. A, Ventral view. I, Chelicera (detached). II, Chelae. III, Palpiform…

"Thelyphonus sp. Ventral view of the anterior portion of the body to show the three prosomatic sternal plates a, b, c, and the rudimentary sternal element of the praegenital somite; opisth I, first somite o the opisthosoma." — The Encyclopedia Britannica, 1910

Thelyphonus

"Thelyphonus sp. Ventral view of the anterior portion of the body to show the three prosomatic sternal…

"Thelyphonus assamensis, Ventral surface of the anterior region of the opisthosoma, the first somite being pushed upwards and forwards so as to expose the subjacent structures. opistho 1, First somite of the opisthosoma; opistho 2, second do.; g, genital aperture; l, edges of the lamellae of the lung-books; m, stigmata of tergo-sternal muscles." — The Encyclopedia Britannica, 1910

Thelyphonus assamensis

"Thelyphonus assamensis, Ventral surface of the anterior region of the opisthosoma, the first somite…