198 PROCEEDINGS OF THE ACADEMY OF [April, 



Trachelas similis Cambridge. 



Biol. C. Am. Arachn. Aran., II, 80, 1899. 



Tejar de Cart ago. 



Corinna pictipes n. sp. 



Cephalothorax dark red-brown, almost black, mandibles the same, 

 sternum also; abdomen black, with a median triangular yellow spot, 

 behind clothed with some yellowish hair; cephalothorax with some 

 golden hair. Legs variegated; coxse pale, trochanters with black 

 spot in front and behind; femora black near base and near tip each 

 side; patella? dark near tip; tibia> mostly brown, apical half of I and 

 tip of IV pale, metatarsi and tarsi mostly pale brown. Cephalothorax 

 nearly twice as long as wide, narrowed behind, above with a curved 

 transverse furrow in front of the dorsal groove; the posterior eye-row 

 is slightly procurved, the eyes almost equidistant; the mandibles 

 large and slightly porrect; about six fine teeth on lower margin of 

 fang groove; palpi long, very hairy and black, except the basal joint; 

 the sternum is plainly longer than broad, and shows each side near 

 coxse I a distinct oval depression; abdomen elongate; legs slender, 

 with few spines. Length 8 mm. 



From Tejar de Cartago, Costa Rica (Tristan). 



Corinna modesta n. sp. 



Carapace, sternum, and tips of legs red-brown, basal part of legs 

 yellow-brown, mandibles nearly black; abdomen dark brown, paler 

 beneath. Clypeus plainly higher than A. M. E. ; six teeth on lower 

 margin of the fang groove; sternum and legs not granulose; four 

 pairs of spines under tibia I, no apicals, two under metatarsi, three 

 pairs under tibia III; vulva with two circular cavities in a hard plate, 

 this plate is punctate in front and on the sides. Length 10 mm. 



.From Santa Maria, Costa Rica (Tristan). 



Corinna mucronata Cambridge. 



Biol. C. Am. Arachn. Aran., II, 69, 1899. 



San Jose; La Palma; Escazii; Tablazo (B.); and Cartago (Picado). 



Megalostrata formidabilis Cambridge. 



Biol. C. Am. Arachn. Aran., I, 106, 1893. 



Santa Maria Dota; Cartago; and San Jose. 

 Clubiona tristani n. sp. 



Carapace yellowish brown, darker in eye-region; mandibles red- 

 brown; legs yellowish, metatarsi and tarsi darker. Abdomen black 

 above, a pale median area to the middle, and a series of pale chevrons 

 behind; venter pale. A. M. E. barely, if any, larger than the P. M. E., 



