ASTACIIM?. 49 



ad nuirtiinom nnticiim utrinque improssa, postice latiori, calloso-inflata ; 

 margiiio thoracis postico sinuato. Postalxloinine thorace longiori, lato, 

 siibooinprcsso, parce-punctato, segiucntis aiitcpenultinus angulis late- 

 ralibus fore rootis ; lamina media parte basali apicc iitrin((ue hispiiiosa 

 (interdum trispinosa), parte apieali breviori, angulis rotundatis. Pedi- 

 bus anticis longis, validis ; chela longa, lata, siibdepressa, nbique tnl)er- 

 culis majoribus obtusis, subtus rarioribus, margine intenio subrecto, 

 fortiter dentato; digitis vix brovioribiis, planis, subcostatis, punctato- 

 ciliatis ; digito interno recto, sublongiore, utrinque dentato; externo 

 ineurvo, intu.s dentato, dente anteapicali majori. Carpo longo tuber- 

 cnlato, extus nudo, spina media interna valida ; siibtns spinis duabns 

 apicalibus validis, intus bi-vel triseriatim spinoso ; brachio longo, mar- 

 gine supero tuberculato, spinis duabns anteapicalibus acutis, sul)tus 

 spinis biseriatis, anticis utrinque ad articulationem validis. Pedibus 

 tertiis et quartis articulo tertio unguicvdato ; pedibus quartis et quintis 

 capitulo basali, quartis ovato majori, quintis minori, laminato, erecto. 

 Pedibus abdominalilnis validis, apice paululum divisis, parte externa 

 ante apicem angustiori, apice extus barljata, dentibus duolnis fusco- 

 corneis incurvis, supero longiori; parte interna fusiformi, apice spina 

 longiori, gracili, subrecta, partem externam non superante. 



Forma II. differt chelis minori])us, minus tuberculatis ; nnguiculis 

 articuli tertii minoribus ; pedibus abdominalibus basi articidatis, parte 

 interna fortiori, spina apieali mobili, extus curvata; parte externa 

 apice dentibus conicis, nee fuscocorneis, subincurvis; capitulo basali 

 pedum 250sticorum minus expresso. 



Feniina difiert antennis brevioribus, chela minori ; ventre inter pedes 

 quartos la^vi, postice utrinque tul)ercalo compresso ; annulo transverse, 

 sulco antico longitudinali, lumine transverse, profundo, postico. 



(Maxim.) Long. corp. 3.6 ; antenn. 3.3 ; ped. antic. 3.2. 



Hal)itat : Athens, Georgia ; Koswell, Georgia. Vidi multa specimina. 



The females from Roswell differ a little in having the venter be- 

 tween the fourth legs not so much tuberculated, and the annulus less 

 open. The males (Fonna II.) seem to be identical. 



I have seen the male type. Forma II., in the Mus. Philadelphia. 



Cat. No. 172, Athens, Ga., Dr. J. LeConte. Male Form I., Fern. 

 Spec. 12.* 



Cat. No. 222, Roswell, Ga., Mr. N. A. Pratt. Male Form I., Fem. 

 Spec. 5. 



