PULMONARMt. 311 



moveable hook. Their ligula is elongated, very narrow, and con- 

 cealed. They have but two jaws, which are formed by the first joint 

 of their palpi. 



They all have eight eyes, of which three, on each side and near 

 the anterior angles, form a triangle ; and two near the middle at the 

 anterior margin are placed on a comman tubercle or little elevation, 

 one on each side. The palpi are spinous. The tarsi of the two 

 anterior legs differ from the others, being formed of numerous seta- 

 ceous or filiform joints, and without a terminal tail. 



They are confined to the hottest portions of Asia and America. 

 Their habits are unknown to us. They now constitute two subge- 

 nera. 



PHRYNUS, Oliv. 



Palpi terminating in a claw ; the body much flattened ; thorax 

 broad, and almost in the form of a crescent; abdomen ecaudate, and 

 the t\vo anterior tarsi very long and slender, resembling setaceous 



antennae *. 



THELYPHONUS, Lat. 



The Thelyphoni are distinguished from the preceding subgenus by 

 their shorter, thicker palpi, terminated by a forceps, or by two 

 united fingers ; by their long body with its oval thorax, and the 

 extremity of the abdomen furnished with, an articulated seta forming 

 a tail. Their anterior tarsi are short, of a uniform appearance, and 

 composed of few articulations f . 



The others have their abdomen intimately united to the thorax 

 throughout its entire width, presenting, at its inferior base, two 

 moveable pectiniform laminae, and terminated by a knotted tail armed 

 with a terminal sting. Their stigmata, eight in number, are exposed 

 and arranged four by four along the belly ; their chelicerae are ter- 

 minated by two fingers, of which the exterior is moveable. They 

 form the genus 



SCORPIO, Lin. Fab. 



Scorpions have an elongated body, suddenly terminated by a long 

 slender tail formed of six joints, the last of which terminates in an 

 arcuated and excessively acute point or sting, which affords issue to 

 a venomous fluid contained in an internal reservoir, forming a long 

 square, and usually marked in the middle by a longitudinal sulcus, 

 presenting on each side, and near its anterior extremity, three or two 



Phalangium renifomif, L. ; Pall. Spic. Zool. fascic. IX, iii, 5, 6; Herbst. 

 Mouog. Phal., Ill; East Indies, the Sechelles ; Herbst., Ib., IV, l, South America; 

 Tarantula ren\formu, Fab. ; Pall. Spic. Zool., IX, iii, 3, 4 ; Herbst. Ib. V, 1 ; 

 ejusd. IV, 2, var. ? the Antilles. 



f Phalangiuin caudatum, L. ; Pall. Spic. Zool. fascic. IX, iii, 1, 2, from Java. 

 South America produces another species described and figured in the Jour, de Pliys. 

 et d'Hist. Nat., 1777 ; the inhabitants of Martinqur call it the I'inaiyrirr. A third 

 species, smaller than the preceding ones, and with fulvous feet, inhabits the penin- 

 sula beyond the Ganges. 



