256 



emits at that point from the somewhat inwardly curved upper cor- 

 ner of the apex a fine pointed spine sligthly curved inward, some- 

 what in the form of a C, and directed forwards; the inferior process 

 of the joint is directed downwards and forwards, and is at the extre- 

 mity slightly curved backwards. That the process on the under side 

 of the tibial joint is at the extremity cloven ("zweitheilig") and fur 

 nished at the base with a slender auxiliary process pointing forward, as 

 Ohlert states, I cannot among my specimens (among which are a 

 full-grown male and a female sent to me by Ohlert himself under 

 the name X. praticola) discover; possibly Ohlert may have confounded 

 with X. brevipes or praticola some other, to me unknown species. 

 The female has upon the thighs of the 1 st pair two, on those of the 

 2 ud and 3 rd , one weak, uniformly thick, blunt spine. The vulva 

 consists of a somewhat transverse area, surrounded by two fine costae 

 forming a ( ), and including two small almost egg-shaped fovese 

 narrower in front, which near their middle, on the anterior side, ex- 

 hibit a dark (elevated?) spot. These parts are best seen when the 

 animal is placed in spirits. 



Among some spiders received from Ohlert, is one which ap- 

 pears to be new, and which I call X. pusio '); it is closely related to 



1) Xystieus pusio N., cinereus, cephalothorace subtilissime graimlato, fusco, fascia 

 media cinerea, aliaque laterali utrinque, ex maculis fusco-testaceis plus minus 

 distinctis composita, parte cephalica plus minus infuscata, pedes fusco-testacei, 

 fusco-maculati, pubescentes, non setosi, femoribus saltern 2 anterioribus aculeis 

 binis, tibiis 4 anterioribus subtus aculeis 2 [inter basin et medium], 2, 1, vel 

 (cf) 2, 2 tantum armati; abdominis dorsum antice clarius cinereum, macula vel 

 linea nigricanti utrinque, vel (2) lineis alternantibus longitudinalibus cinereis et albi- 

 cantibus pictum , turn, in medio, maculis duabus, et demum utrinque serie ex maculis 

 3—4 nigris, binis linea transversa albicanti antice nigro-marginata conjunctis, his 

 maculis forma varia et plus minus confusis. — S% ad. Long. 2 i / i —3 1 / 1 millim. 



X. brevipedi simillimus : % vix a femina ejus nisi magnitudine paullo minore, 

 colore abdominis (non tarn dense nigro-maculati) et forma cephalothoracis distingui 

 potest ; a latere visum dorsum cephalathoracis in X. brevipede postice altius videtur, 

 anteriora versus paullo declive, non omnino rectum, sed paullulo arcuatum, tu- 

 berculo oculorum lateralium non supra dorsum cephalothoracis surgenti; in X.pu- 

 sione vero dorsum cephalothoracis omnino rectum usque ad oculos posticos procurrit, 

 quorum laterales cum tuberculo suo altius eminent quam reliquum dorsum partis 

 cephalicse. Mas forma partis tibialis palporum sine negotio internoscitur : cujus 

 latus exterius anteriora versus et foras productum est, ipso apice primum paullo foras 

 directo, turn vero rectis angulis in spinam longam tenuem excurrenti, quae spina 

 fere recta est, parum S-formiter curvata et anteriora versus directa. Long, cephalo- 

 thoracis iy 4 — iy 2 millim. Frons antice paullo rotundata, et setis paucis munita, 

 ut in X. brevipede; area oculorum 4 mediorum paullo longior quam latior, sub- 

 rectangula; medii antici a lateralibus anticis non longius quam diametro oculi 



