96 Mr. F. 0. P. Cambridge on Cteniform Spiders 



A thick undivided scopula beneath tarsi and protarsi i. and 

 ii. Scopula beneath apex of protarsus iii., none beneath iv. 

 Scopula beneath tarsi iii. and iv. divided longitudinally by a 

 broad band of setae. 



Legs 4, 1, 2, 3. 



Tarsal claws 3. Claw-tuft absent. 



Labium scarcely longer than broad, narrowed at base, 

 rounded at apex. 



Maxillce straight, rounded externally, obliquely truncate on 

 inner apex, much narrowed at base. 



Mamillce set in a transverse quadrangle, broader than long, 

 posterior pair wider apart than anterior at base, more slender 

 and slightly longer; both pairs cylindrical, with small apical 

 joint. Central pair sliorter, and broadly truncate at apex. 



Carapace abruptly but obliquely precipitous behind. 



Patella and tibia i. equal to or less than patella and tibia iv. 



Table of Species. 



Males. 



A. Carapace dark fulvous brown, with broad 



lateral margin Tvhite. 



1. Abdomen unicoloroiis brown above. Cara- 



pace not shorter than tib. i. (or iv.). 



a. Size larger, 22 ram. Pat. and tib. i. longer 



than pat. and tib. iv. Palpal " unca '' 



plain in front L. demerarensis, sp. n. 



b. Size smaller, 18 mm. Pat. and tib. i. equal 



to pat. and tib. iv. Palpal " unca " with 

 sharp prominent angle in centre of frontal 

 margin -^- colombianus, sp. n. 



2. Abdomen with two small white spots above 



the black shoulder-spot ; a pair of small 

 central dorsal white spots and a pair of 

 white spots towards the apex. Carapace 

 much shorter than tib. i. (or iv.). 



a. Size much larger, 30 mm. Pat. and tib. i. 



longer than pat. and tib. iv. Palpal 

 " unca " stout at ape.\ and abruptly 

 hooked ; dorsal angle much more promi- 

 nent L- fffffo*} sp- n- 



b. Size much smaller, 20 mm. Pat. and tib. i. 



shorter than pat. and tib. iv. Palpal 

 " unca " more slender at apex and not 

 abruptly hooked ; dorsal angle less pro- 

 minent' L- brunneui>y sp. n. 



B. Carapace pale straw-yellow (or dull orange), 



with a broad lateral brown bimd on each side 



of a broad central pale band L. Eei.cxt$oni, sp. n. 



