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"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…

"Ventral view of a scorpion. Palamnaeus indus, de Geer, to show the arrangement of the coxae of the limbs, the sternal elements, genital plate and pectens. M, Mouth behind the oval median camerostome. I, The chelicerae. II, The chelae. III to VI, the four pairs of walking legs. VIIgo, The genital somite or first somite of the mesosoma with the genital operculum (a fused pair of limbs). VIIIp, the pectiniferous somite. IXstg to XIstg, the four pulmonary somites. met, the pentagonal metasternite of the prosoma behind all the coxae. x, the sternum of the pectiniferous somite. y, the broad first somite of the metasoma." — The Encyclopedia Britannica, 1910

Scorpion

"Ventral view of a scorpion. Palamnaeus indus, de Geer, to show the arrangement of the coxae of the…

"The same scorpion carrying the now paralysed fly held in its chelicerae, the chelae liberated for attack and defence." — The Encyclopedia Britannica, 1910

Scorpion

"The same scorpion carrying the now paralysed fly held in its chelicerae, the chelae liberated for attack…

The Black Rock Scorpion (Scorpio (Buthus) Afer), "seen from above. At, the chelicerae, or chelate antennae; the large claws are chelate pedipalpi; Cth, cephalothorax; the first two legs are cephalic appendages, the next two thoracic; Tn, the telson or sting." -Whitney, 1911

Black Rock Scorpion

The Black Rock Scorpion (Scorpio (Buthus) Afer), "seen from above. At, the chelicerae, or chelate antennae;…