618 Mr. BIAckwall'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 3th 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 AcELENID x. 
Genus CœLores. 
Oculi in seriebus 2 transversis parallelis rectis; seriei anterioris et brevioris 
intermedii supra marginem frontalem positi, pauló minores; utriusque 
laterales in tuberculis positi. Maxillz fortes, labium versus curvatæ, ad 
palporum insertionem et ad apices oblique truncatos intüs pilis fimbriatos 
dilatatæ. Labium paulo 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. 
Cœlotes saxatilis. (Drassus saxatilis, 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 maxillæ (Researches in Zoology, p.332). Sub- 
sequent investigations, made with great care, have served to convince me that 
it belongs to the Agelenidæ, 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 papillæ or spinning-tubes disposed on the under side of the terminal 
