1898.] KEW SPIBEBS FBOM I'ElNIDAD, 899 



possess any stridulating-orgaii. Surinam being the locality 

 whence the type of Mygale plumipes C. K.' came, it seems pretty 

 certain that M. Simon's identification is correct. 



Fam. D1PLUEID.5;. 



Grenus Bra.chtthble Ausserer, 



Verb. z.-b. Ges. Wien, 1871, p. 173 ; Simon, Hist. Nat. Ar. i 

 p. 180. 



Beachythele antillensis, sp. n. 



$ . Total length 16 mm. 



Colour. Carapace and mandibles black, clothed with golden hairs. 

 Abdomen dull brown, clothed with fine black hairs. Legs pale 

 yellow-brown, annulated and spotted with black or dark brown. 

 The palpus has a dark spot at the apex of the femur on each side ; 

 the patella has two spots on each side, one near the base, the 

 other towards the apex ; the tibia has two dark annulatious. Legs 

 i. and ii. are absent. Leg iii. has, besides the same dark spots on 

 the femur, patella, and tibia, two annulations on the protarsus. 

 In the fourth pair of legs the annulations are less distinct. 



Structure. There is no special structure different from the 

 general characters of members of the genus. The fang-groove has 

 a single row of 8 stout conical teeth. 



A single female of this Spider was taken by Dr. W. Ince in 

 Trinidad. When more specimens of both sexes are available for 

 examination, it will be possible to give the differential characters 

 better definition. 



Fam. PiSAUEiD^. 

 Genus Ltcoctenus F. Cambr.^ 

 Ann. Mag. Nat. Hist. ser. 6, xix. p. 95 (Jan. 1897). 



Ltcoctekus PALtrsTEis, sp. n. (Plate LIV. fig. 11.) 



(S . Total length 30 mm. Carap. 14x10. Legs: i. 63 — ii. 

 56— iii. 50— iv. 63. Pat.-1-tib. i. 19— iv. 18. 



Colour. Carapace deep mahogany-brown, with a broad margin of 

 yellow-white pubescence. Abdomen deep olive-brown, clothed 

 with short yellow-grey pubescence. Legs brown, clothed with short 

 yellow-grey pubescence and short brown hairs. 



Structure. The general characters are the same as in other 

 species of the genus. The unca of the palpal organs is, however, 

 much broader across the middle, strongly projecting in a rounded 



1 Die Arachniden, ix. p. 67, fig. 733, S ■ 



2 Note. — M. Simon, Hist. Nat. Ar. i. 2, p. 300, regards Lycoctenus F. Canibr. 

 as a synonym of Ancylometes Bert. I do not know whether M. Simon has seen 

 Bertkau's type ; but since this latter author quotes the number of pairs of 

 spines beneath tibia i. and ii. as 5, one cannot, on Bertkau's description alone, be 

 satisfied as to their identity. I think it is very likely they are the same, but I 

 have no satisfactory proof of it yet. 



