RAMNES.—PRUSIAS. 127 
RAMNES. 
Ramznes, O. P.-Cambridge, Biol. Centr.-Amer., Arachn. Aran. i. p. 102 (1892). 
Type R. semotus, O. P.-Cambr., 2, juv. Panama. 
Kyes of anterior row forming a slightly recurved line; posterior row also slightly recurved. Posterior centrals 
distinctly smaller than anterior centrals. Central quadrangle slightly longer than broad. Posterior row 
very slightly broader than the anterior row. Clypeus very narrow, equal to a quarter of the diameter of 
the anterior central eye. Anterior centrals three-fourths of a diameter apart, one-half from the laterals. 
Posterior centrals one and a fourth diameters apart, the same distance from the laterals. Laterals three- 
fourths of a diameter apart. 
Sternum broader than long. Superior margin of fang-groove with two teeth, inferior with four teeth. 
Tarsi and protarsi of legs i., ii., iii., and iv. scopulate. Claw-tuft present; tarsal claws pectinate. 
1. Ramnes semotus. (Tab. IX. fige. 15, 15 a, b, 2.) 
Ramnes semotus, O. P.-Cambr. Biol. Centr.-Amer., Arachn. Aran. i. p. 102, t. 13. figg. 8, 8a-d (?) 
(immature) *. 
Type, 2, in coll. Salvin & Godman. 
Hab. Panama, Bugaba (Champion '). 
PRUSIAS. 
Prusias, O. P.-Cambridge, Biol. Centr.-Amer., Arachn. Aran. i. p. 101 (1892). 
Type P. nugalis, O. P.-Cambr., g, juv. Panama. 
Eyes of anterior row forming a slightly recurved line. Posterior row slightly recurved. Posterior centrals 
distinctly smaller than anterior centrals. Central quadrangle much longer than broad. Posterior row 
not broader than anterior row. Clypeus very narrow, hardly one-eighth the diameter of an anterior 
central eye. Anterior centrals half a diameter apart, less than one-eighth from the laterals (almost in 
contact). Posterior centrals one and a quarter diameters apart, one diameter from the laterals. Eyes of 
anterior row subequal, centrals slightly larger; of posterior row equal, distinctly smaller than those 
of anterior row. Laterals three-fourths of a diameter of a posterior lateral eye apart. Superior margin of 
fang-groove with two teeth, inferior with four. 
1. Prusias nugalis. (Tab. IX. figg. 16, 16a, ¢.) 
Prusias nugalis, O. P.-Cambr. Biol. Centr.-Amer., Arachn. Aran. i. pp. 102-247, t. 18. figg. 9, 
9a-d(), t. 31. figg. 1, la (2) (immature)’. 
Type 3, cotype 2, in coll. Godman & Salvin. 
Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith); Panama, Bugaba (Champion), 
A male and female, both immature, from Panama and Mexico respectively. 
Fam. THOMISIDA. 
Eyes eight, in two transverse rows. Legs laterigrade. Carapace and abdomen usually more or less compressed, 
sometimes very much so. Apex of protarsi with a hard chitinous lobe, but without the membranous 
appendages characteristic of the true Heteropodide. 
Though possessing, on the whole, unmistakable general characteristics which enable 
