ACARI 583 



Liponyssus spinosus Oudms. 



Département de VAriège {France). — Grotte de Tourtouse, 

 commune de Tourtouse, canton de Sainte-Croix, 9th August 

 1907 ; N^ 209, 1 9 with one embryo. 



Distribution : Netherlands. 



The ventral shield of my spécimen is smaller than in 

 OuDEMANs' spécimens. 



Subfam. Spinturnicinae. 



SPINTURNIX V. Heyden 



S. murinus Walck. 



(Fig. 103 — 106). 



Département de VAriège {France). — Grotte de Tourtouse, 

 canton de Sainte-Croix-de-Volvestre, 9th August 1907 ; N^ 209 ; 

 numerous spécimens. 



Provincia de Santander {S pain). — Cueva de Hornos de la 

 Pena, ayuntamiento de San Felices de Buelna, partido de 

 Torrelavega, 20 th April 1909 ; N^ 268, 1 female. 



Distribution : Europe. 



As this species is well known, 1 only give a few di'awings ot" 

 its mouth parts. 



The mandibles (fig. 103) of the maie hâve a very peculiar 

 shape, which obviously serves a double purpose. The real chela 

 is narrow, hyalin and ensiform, with thin jaws, which are not 

 antagonistic but he pressed closely together side by side, so 

 that the upper edge of the lower one is congruent with that of 

 the upper jaw. The upper edge af the lower one and to a large 

 extent the lower edge of the upper ja^^- are provided with very 

 sharp, backwardly directed, teeth, presumably acting as barbs. 



ARCH. DE ZOOL. EXP. ET GÊN. — b" SÉRIE. — T. VIII. — {VII). 41 



