~~ 
ARACHNOIDEA. 583 
the former: see other species of this genus figured and described in Kocn’s 
Arachn. Vv. Bd. pp. 128—149. Tab. 176—179. 
Cryptostemma Gu¥R. With ocelli none or indistinct ; with tarsi 
composed of four or five joints; with mandibles exsert. See GuERIN 
Revue Zool. 1838, p. 11, Gurvais Apééres, ui. pp. 130, 131, PL 47, 
fig. 4. 
Note.—Genus Caculus Lion Durour Ann. des Se. nat. XXV. 1832, pp. 
289—2096, Pl. 9, figs. 1—3, is referred here by its author himself, by 
GuSRIN and others ; but this scarcely seems to be its place. 
Phalangium Latr. (species from genus Phalangium L.). Ce- 
phalothorax not produced anteriorly. Mandibles exsert. Palps 
unguiculate at the apex. Tarsi mostly with several (6—8, or very 
numerous) joints. Ocelli two in the middle of cephalothorax, 
seated on’ common tubercle; two others accessory in many, 
lateral, remote, situated more forward. 
Gonyleptes Kirpy. Palps spinose, dilated. Cox of last pair of 
feet very broad. Dorsal scutum horny, hard. (Tarsi mostly with 
not more than ten joints. Posterior feet longer than the rest), 
Sp. Gonyleptes horridus Kirpy Transact. Linn. Soc. x1. Pl. 22, fig. 6, 
Centurie d’Ins. Paris, 1834, Pl. 4, fig. 8, Brazil;—Gonyl. curvipes GUERIN 
Iconogr., Arachn. Pl. 4, fig. 5, Chili, &c. 
Note.—All the species are exotic; in some the posterior legs are very 
long, slender, and surpass the body three times or more: Mastigopus (genus 
ineditum Musei L. B.) or Mitobates SuNDEV. Conspect. Arachn. p. 34. 
Perry and Kocu have proposed several other genera, on which see KocH 
Uebersicht, 2 Heft, pp. 8—22. Genera Cosmetus and Discosoma PERTY 
form the transition between Gonyleptes and Phalangium. 
Phalangium (species from genus Phalangiwm auctor). Posterior 
coxe scarcely thicker than the rest. Feet slender, with tarsi having 
numerous joints (L0—15 or more); second and last pairs sub- 
equal, longer than the others. 
Sp. Phalangium opilio L., Opilio parietinus Hersst, Kocu, DE GEER Mém. 
vit. Pl. 10, fig. 1, HanN Arachnid. 11. Pl. 69 ;—Phal. cornutum L., Ceras- 
toma cornutum Kocu, Dr Gner ib. fig. 12, Haun Arachn. 1. Pl. 70, 
Hermann Mém. Aptér. Pl. 8, fig. 6 (Guorrroy and LATREILLE hold the 
two for one species, and the last for the male of Opilio; HERMANN, TRE- 
VIRANUS, HAHN and Kock consider them to be different species. These 
animals (harvest-spiders, basterd-spinnen hooiwagens, fuuchewrs) run very 
rapidly ; they lurk in chinks of walls, live on the ground between stones, 
on trunks of trees, &e. The long thin legs, after their separation from the 
body, present for a long time indications of remaining irritability. The 
