EKV. O. P. CAMBRIDGE ON CEYLON SPIDEES. 389 



nished with hairs, and is nearly black ; spotted, mottled, and marked 

 with yellow and yellowish white ; of this latter colour are several 

 short, parallel, curved, transverse streaks on either side at intervals in 

 the medial longitudinal line of the upperside : the hinder portion 

 of each of the conical prominences is also of a pale yellow colour. 

 A single adult ^ in the collection of Mr. Nietner from Ceylon. 



Family EPEIEIDES. 



Genua Tetbagnatha (Walck.). 



Tetragnatha decorata {Bl. Ann. and Mag. Nat. Hist, for July 



1864). PI. XIII. figs. 61 to 68. 

 Length of the adult S 2j to 2^ lines, of the adult $ 4 to 4^ lines. 



This species was described by Mr. Blackwall (loc. cif. sup.) trom 

 two rather mutilated female specimens given to me by Mr. Frede- 

 rick Bond — to whom they were sent, in a bottle of Coleoptera, by 

 a correspondent in India. 



Subsequently I received several examples of the same sex from 

 Bombay, captured and kindly forwarded me by Captain Julian 

 Hobson, among many other new and rare spiders. The collection 

 from Ceylon, now under consideration, contained sixteen speci- 

 mens, comprising adults of both sexes. The male, which is now 

 recorded for the first time, resembles the female in colour and 

 markings, which last, however, are not quite so distinctly traced 

 as in that sex, the silvery ground-colour being more predominant ; 

 but in the form of the abdomen the two sexes differ considerably ; 

 the fore part of that of the male entirely wants the two conical 

 eminences, and the hind protuberance is much shorter and less 

 pointed ; t\io falces also in the male are loss proaiinent in front, 

 and less strong, though proportionately longer ; the leffs of the 

 first pair are also longer in proportion than in the female. The 

 j)alpi are moderately long and slender ; the humeral, cubital, and 

 radial joints are all rather clavate ; the radial is long, but the cu- 

 bital proportionally short ; the digital joint is oval, with the ex- 

 terior sides directed outwards ; from near the base of this joint 

 there projects a rather long, straight, prominent, sharp-pointed, 

 semitransparent, yellowish, spiny process : both the radial and 

 digital joints are furnished with long bristly hairs ; and from the 

 upperside of the cubital joint projects forwards a strong bristle 

 of still greater length, being about three-fourths as long as the 

 radial joint. The palpal organs are well developed but simple, 



