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feet short, not three times as long as the body, three 

 anterior pairs before the middle, posterior ones be- 

 hind the middle and remote from the others ; fourth 

 and fifth pairs with double nails ; abdomen, segments 

 with a series of equidistant, minute tubercles. 



Length, one- fifth of an inch. 



This remarkably distinct species, we first disco- 

 vered on Cumberland Island, Georgia, and subse- 

 quently many specimens occurred in East Florida, 

 where it appears to be common. It is not an inha- 

 bitant of the Northern States. 



family 3. ARANETDE^. 



Although I have a considerable number of descrip- 

 tions of Araneides, which I think are new, yet, as. I 

 am not sufficiently well acquainted with the species 

 of this family, in their different ages, prudential mo- 

 tives induce me to refrain from publishing them until 

 further investigation shall qualify me for the task. 



order 4. MONOMEROSOMATA. 



genus TROMBIDIUM. 



Body consisting of a thorax and head united and 

 distinct from the abdomen ; two anterior pairs of feet 

 distant from the others ; eyes pedunculated, lateral ; 

 palpi with a moveable appendice beneath their tips. 



Species. 1. T. *scabrum. Body ovate, broadest 

 and very obtusely rounded before, pale reddish, mi- 

 nutely scabrous, surface unequal, with numerous in- 



