ON SOME NEW AND RARE SCOTCH SPIDERS 19 



here also one species sent to me by my cousin, the late Colonel 

 Pickard, R.A., V.C., etc., from the island of Colonsay, many 

 years ago, but only just now determined to be new. 



ARACHNIDA. 1 

 ARANEIDEA. 



Fam. THERIDIIM:. 

 Gen. TYPHOCRESTUS, Sim. (Nertene, Bl., adfartem). 



TITHOCRESTUS DIGIT A TUS, Camb. 



Erigone digttata, Camb., " Proc. Zool. Soc. Lond.," 1872, p. 758, 



Plate LXVI. Fig. 14. 



TypJwcrestus digitatus, Camb., Sim., Aran. de France, 1884, tome v. 

 part 3, p. 584, Figs. 399-401. 



ADULT MALE. Length, frds of a line. Cephalothorax, oval, 

 obtuse at each end, scarcely any lateral marginal constriction at the 

 junction of the caput and thorax, rising gradually from the hinder 

 margin to the occiput, which is a little, but not abruptly, gibbous ; 

 clypeus a little prominent, and equal in height to half that of the 

 facial space. On each side, behind the lateral pairs of eyes, is a con- 

 spicuous, deep, longitudinal excavation or indentation running to a 

 point backwards ; the upper margin of this is marked (in the example 

 under consideration) with a strong black line which runs round 

 behind the occiput, forming there an obtuse point, and giving the 

 impression, when looked at from above and behind, of the portion 

 enclosed being divided horizontally from the thorax. This, however, 

 is only apparent, as in fact there is no such division, though doubt- 

 less that would be at some period the result of an apparently pro- 

 gressive development. No such line as that above mentioned was 

 visible in the German type of this species, nor is it in an example 

 once received for examination from Holland ; something, however, 

 of the kind is represented in the figure given (loc. at. supra] by M. 

 Simon. The caput has a few short hairs on it ; and the colour 

 of the cephalothorax is a greenish olive brown, with black con- 

 verging lateral markings and margin. Eyes, small, in two transverse, 

 slightly curved or nearly parallel rows; the laterals are largest, 

 the hind lateral eye largest of the eight ; the posterior row, 

 looked at from above and laterally, very nearly straight. The hind- 

 central eyes are scarcely more than an eye's diameter apart, but are 

 farther from the hind-laterals and a little closer to the fore-centrals, 

 which last are smallest of the eight, and contiguous to each other. 



1 The arrangement of the Spiders included here is not intended to be rigidly 

 systematic. 



