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* > 



66 ARACHXIDES OF THE 



whitish lines, drawn from the base of the ocular 

 tuhercle to the tip of the clypeus, which are also 

 sometimes visible in the female. 



I have not found these in coitu, but have consi- 

 dered them of the same species, from their being as- 

 sociated and sornewljat similar in form and markings. 



2. P. *dorsatum. Whitish, with a dorsal fuscous 

 vitta, joints of the palpi armed with a series of spines. 



Inhabits the United States. 



Cabinet of the Academy. 



Body rounded behind, whitish, a dorsal fuscous 

 vitta continued from the clypeus to the cloaca, and 

 obsoletely punctured with whitish, a few submargi- 

 nal, obsolete, irregular lines or spots; granules dense, 

 obtuse, not prominent ; ocular peduncle prominent, 

 contracted at base, slightly muricated before, obso- 

 letely granulated ; clypeus not elevated ; palpi rather 

 long, robust ; second, third, and fourth joints pecti- 

 nated on the exterior edge with acute, distant spines ; 

 fifth joint more densely pectinated on the iuner edge ; 

 feet armed with minute distant spines ; coxce black- 

 ish ; pectus with distant very distinct, obtuse gra- 

 nules ; radical supports of the feet with a moniliform 

 line each side in the incisures ; venter nearly gla- 

 brous, granules indistinct; tergwn.not deflected. 

 Length of the female one-fifth of an inch. 

 Very similar in colour to the preceding, but suf- 

 ficiently distinct by the spinulose palpi, kc. 



3. P, ^nigrum. Body ovate, blackish: clypeus 



