Ai; \< HNIDES ARANEIDES RETITELAR1 I 73 



a break in the stone there is IK. trace ut' a pedicel. \va- found by me in the 

 shales at Green Ui\er. \Vvmiiing. 



A -inije specimen (No. 8 ' of an egg-COCOOn was also t'liiiml at 



Florissant, Colorado, having tin- same -vneral appearance, lint with no trace 

 pedicel and >Ii--hrl\ larger than auv of tin- others, bein^ i;""" long and 

 ; >road. It i- of course impo^>ible I.. sa\ that it is the same species. 



Still anotln-1 N" 1.173) was brought by the Princeton expedition from 



r'iori.vsant, ditVi-rin;;- in tin- opposite ilir.-etion, being considerably smaller 

 and so preserved as to appear broader than \n\\-j_-. It is provided with a 

 pedicel ; ing, l.ut is it^-lf only _'""" Ion-- and -J.fi'"'" hn.ad. 



lii\-'r. l-'lorissant. 



ir.M Walckenaer. 



N" I---s than >i\teeli I'c.s^il species of this ^rnits ha\-i- lieell 

 thirte.-ii from amln-r. one from th-- he-Is of Aix, at ahoiit tin- same hori/on, 

 and two from ( (eiiin'jvii. 'riios.- from Oeningen ami Aix are \---rv different 

 from tin- two In-iv di-scrihed, and those figured from aniher are scarcely 

 nearer, tlnni^h T. opertaiifiim Ic.-ars some resi-mhlance to T. granulatum, 

 and T. seclnsiim to T. hirtinn. Tin- \.i-l majorilx .-t' the numerous known 

 living species ,.f this i;,-nii> are from Mnrope, hut not. a few occur in our 

 coiintrv . - .dlv in the Southern States, and one or two are reported from 



Other parts of the world. It i> therefore almost e\clnsi\ i-l\ a north temperate 

 -eiuis. lint is hv no means ecuiline-l to tin- warmer jiarts, and its occurrence 

 at Florissanl h. j iticam-e as to the climate of the times. 



i November, 1881.) 



i i in. 



iih.ilnlliorix niiirli IOM^.T lli:- 1' .................... 1. T. operlam inn. 



Small iili:ili)llmr;i\ n- ............................... 'J. T. ei-ln"iini. 



\. 'rill.lMDUM OPEB1 \M.rM. 



I'l. II. Tiu. 3(9). 

 <ilt\ ( 'ephalothorax elongated, comparatively slender, nearly v(|iial. 



alioiit twice as lono- MS liroad. I <egS -lender, im]er!'----ily preserved, not VIT\ 

 long, sparsely furnished with rather >h<>rt delicate spim-s, not longer than 

 the width of the le^-s. Ahdonn-n very lar^e, ne;irlv ^lolmlar, nearly tliree 

 times a> In-oad as the cephalothorax, of a greenish tinge, though the whole 

 body i> brown. 



