618 Mr. Blackwall's Descriptions of new Species of Spiders. 



oval, very dark brown, convex and hairy externally, concave within, 

 comprising the palpal organs, which are highly developed, little compli- 

 cated in structure, projecting upwards to the articulation of the third 

 and fourth joints, and are of a dark brown colour. 



Salticus distinctus is common in Denbighshire on stone walls, in the inter- 

 stices of which the female spins a cell of compact white silk attached to the 

 surface of the stones. In the month of July she constructs in this cell a len- 

 ticular cocoon measuring ^th of an inch in diameter, in which she deposits 

 about 16 spherical, pale yellow eggs, not agglutinated together. The young, 

 even before they quit the cocoon, exhibit some of the marks most character- 

 istic of the species. 



Family Agelenii)^. 



Genus Ccelotes. 



Oculi in seriebus 2 transversis parallelis rectis ; seriei anterioris et brevioris 

 intermedii supra marginem frontalem positi, paul6 minores ; utriusque 

 laterales in tuberculis positi. Maxillae fortes, labium versus curvatse, ad 

 palporum insertionem et ad apices obliqu^ truncatos int^s pills fimbriates 

 dilatatee. Labium paul6 longius quam latum, lateribus curvatis, apice 

 truncato. Pedes robusti, pari 4to longissimo, dein Imo, 3tio brevissimo. 

 Tarsi triunguiculati, unguibus 2 superioribus curvatis pectinatis, inferiore 

 prope basin inflexo. 



Ccelotes saxatilis. (Dro**w4.yaa:^a#<7?5, Blackw. Research, in Zool. p. 332. Amau- 

 robius terrestris, Koch, Die Arachn. b.vi. p. 45. tab. 192. fig. 463-4.) 



A description of this spider was originally given in the London and Edin- 

 burgh Philosophical Magazine, vol. iii. p. 436-7, under the name of Clubiona 

 saxatilis. Afterwards I was induced to remove it to the genus Drassus on 

 account of the curvature of its maxillae (Researches in Zoology, p. 332). Sub- 

 sequent investigations, made with great care, have served to convince me that 

 it belongs to the Agelenidce, as it possesses several characteristics in common 

 with the spiders of that family. The anterior part of the cephalo-thorax is 

 compressed ; the superior spinners are triarticulate, longer than the rest, and 

 have the papillae or spinning-tubes disposed on the under side of the terminal 



