ON EUROPEAN SPIDERS. 49 
-Epeirine NOB.) into two "families", Æpeiridæ and Tetragnathide, which 
however differ only in the position in which the animals place themselves in 
their webs, and in their methods of capturing their prey and of copulating, 
but not in any point of bodily formation. — We can admit of only two 
European sub-families, Epeirin® and Uloborine. 
We accordingly arrange the European Epeiroide in the following 
manner: 
§ Organum infra-mamillare nullum; metatarsi postici calamistro carent. 
nn con Coma tie DU I DEIR UNIS 
+ Maxillæ breves, latitudine non vel parum longiores. 
* Series oculorum postica, desuperne visa, fortiter procurva’). Cepha- 
lothorax sub-planus, parte cephalica parva, humili. . . . 1. Argiope. 
** Series oculorum postica, desuperne visa, sub-recta vel recurva. Ce- 
phalothorax modice convexus, parte cephalica (in feminis saltem) sat 
magna. 
A. Oculi laterales postici a mediis posticis multo longius distantes 
quam hi inter se. 
I. Pedes 1": paris reliquis longiores. 
a. Oculi laterales antici ab anticis mediis sæpissime eviden- 
ter, plerumque dimidio — duplo longius distantes quam hi 
inter se. Abdomen plerumque ovatum, interdum subglobo- 
sum, sæpe antice tuberculatum. . . . . . . 2. Æpeira. 
b. Oculi laterales antici ab anticis mediis non vel paullo tantum 
longius distantes quam hi inter se. Series oculorum posti- 
corum, desuperne visa, evidenter recurva; frons ultra basin 
mandibularum plus minus prominens. 
1. Oculi laterales sæpissime sat late disjuncti. Abdomen 
postice in formam coni produetum vel ibi tuberculatum. 
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2. Oculi laterales sub-contingentes, ab anticis mediis vix 
vel non longius distantes quam hi inter se. Abdomen 
cute molli tectum, cylindrato-ovale, cum cephalothorace 
parce pilosum et sub-nitidum. . . . . . 4 Singa. 
IL Pedes 4“ paris reliquis longiores. Abdomen cute duriuscula 
tectum Fein Etre MET. Mey NA LIMES, DW @ereidim, 
B. Oculi laterales postici non vel (in c?) parum longius a mediis 
posticis distantes quam hi inter se. Series oculorum posticorum, 
1) The series is said to be procurva, when its convezity is directed backwards, 
recurva, when the convexity is directed forwards (towards the mouth). — The 
curvature of the anterior series is determined as seen from before, and that of the 
posterior as seen from above. 
Nova Acta Reg. Soc. Sc. Ups. Ser. III. 7 
