ACARI . 545 



As yet nothing more is known of thèse curions forms, and we 

 are net in a position to form any opinion as to tlieir systematic 

 location iintil we hâve found the adults of them. 



Gamasoides armatus n. sp. 



(Ffg. 38-44), 



Département cVAriège {France). — Grotte des Neufs-Fonts, 

 commune d'Aulus, canton d'Oust, 18 Septembre 1909; N» 300, 

 3 nymphœ. 



DiAGNOSIS. 



Two dorsal shields, the anterior one of which is largest; 

 shoulder bristles far back. Hypost'oma triangular, with 

 irregularly wavy edges. Chela narrow, pointed ; upper jaw 

 completely fused with calcar, edentate, \vith narrow, lan- 

 ceolate top. Maxillary lobes membranacecus ; posterior hair 

 an extraordinarily stout bristle. Sternal shield extending 

 backwards to coxse IV, with 3 pairs of very short, poniard- 

 shaped bristles. Anal shield pyriform. Coxse I to III with 

 stout bristles. Ambulacresl without claws, ail with sucker- 

 plates. 



NYMPHA 



Length : 490-520 y. ; greatest width 320 \}.. 



Colour light-brown. Texture finely scaly. Shape of the 

 body, oval ; greatest width to length as 2 : 3 ; greatest width a 

 little in front of the middle, whence the sides fall off in an even 

 curve without marked « shoulders » anteriorly, w^here it is 

 broadly rounded ; posteriorly the sides fali ofï more slowly, 

 especially in the posterior half , and the hind margin is obtusely 

 rounded. 



Dorsal side (fig. 38) covered by two shields, one anterior 

 and one posterior one, which, in the présent spécimens, protect 

 the whole surface, and are separated by a very narrow strip of 

 soft cuticle which runs straight across, except at the margin, 

 where it bends slightly backwards. 



Anterior shield 290 y. long ; posterior one 225 ij. long. 



