OP PHILADELPHIA. 11 



B. viTTATUS. — FuscouSj with three fulvous vittae ; sides 

 black. 



Inhabits G-eorgia and Florida. 



Cabinet of the Academy. 



Body above granulated, granules irregular, distant, three ful- 

 vous equal vitta, and an elevated, interrupted vertebral line ; 

 sides black, rugose, beneath white ; thorax reddish-brown, more 

 scabrous before [62] and behind, hardly marked by the vitta, sube- 

 marginate before, and divided by a longitudinal impressed line, 

 region of the dorsal eyes blackish ; palpi longer than the body, 

 with granulated lines, carpus with three or four of the granules 

 more conspicuous ; hand subovate, greatest diameter about equal 

 to that of the preceding joint; fingers filiform, incurved, longer 

 than the hand, reddish brown, furnished with numerous minute 

 teeth feet paler than the palpi, minutely granulated above and 

 beneath ; caudal process color of the palpi, longer than the body, 

 with granulated costa, those of the penultimate segment not more 

 conspicuous ; terminal segment subovate, slightly mucronate 

 beneath the aculeus, the costal granulae minute. 



Length from tip of the palpi to tip of the caudal process, one 

 inch and seven-tenths. 



I found numerous specimens of this species on the sea islands 

 of Greorgia and in East Florida, hybernating beneath the bark of 

 trees. 



The wound inflicted by the puncture of their aculeus, causes 

 much pain and intumescence, but is readily cured by the topical 

 application of the volatile alkali. 



The species to which vittatus is allied, are the punctatus of 

 Degeer and americanus of Linne, but according to Latreille (v. 

 Sonnini's Bufibn) these are both spotted with brown, the caudal 

 process of punctatus being of the length of the body and that of 

 americanus three times the length of the body. [63] It is how- 

 ever very possible that our species may be a variety oi punctatus. 



Genus CHELIFER Geoff, Leach. 



Palpi brachiform, didactyle ; thorax with the first segment divi- 

 ded by a transverse indented line ; eyes two ; mandibles short. 



1. C. MURICATUS. — Third joint of the palpi nearly three times 

 1821.] 



