1922] Brolemann: Female Paraiulids 303 



Plate XXII. 



Fig. 30. Paraiulus immaculalus. Cardo and stipe of right mandibula, ventral 



aspect. 

 Fig. 31. Paraiulus immaculatus. Cephalic aspect of ventral region of second 



segment (A) and of third (B). P^ = atrophied stemite of second 



legs. 

 Fig. 32. Paraiulus immaculatus. Adult vulvae, caudal aspect. 

 Fig. 33. Paraiulus immaculatus. Right vulva, outer profile. 

 Fig. 34. Paraiulus immaculatus . Inner oblique view on the anterior truncation 



of left vulva, the operculum of which has been partly detached and 



turned aside. 

 Fig. 3.5. Paraiulus impressus. Anterior end of adult female. 

 Fig. 36. Paraiulus impressus. Ventral aspect of segments 1-3 of same. 



54 = stemite of 4th segment. 

 Fig. 37. Paraiulus impressus. Cephalic aspect of ventral region of second 



segment (A) and of fourth (B). 54= stemite of 4th segment. 

 Fig, 38. Paraiulus impressus. Gnathochilarium of adult female. 



Plate XXIII. 



Fig. 39. Paraiulus impressus. Synoperculum and dwarfed legs of second pair, 



cephalic aspect. 

 Fig. 40. Paraiulus impressus. Both vulvas, caudal aspect. The left mound 



is bent backwards and is seen from above. c = crest of the inner 



valve of the mound, and w = furrow of the outer valve. e = basal 



excavation of the synoperculum. 

 Fig. 41. Paraiulus impressus. Mound of left vulva, inner profile. c = crest of 



the inner valve. 

 Fig. 42. Paraiulus impressus. Base of legs of second pair of larva with immature 



vulvce, caudal aspect. 

 Fig. 43. Paraiulus venustus. Anterior end of adult female. 

 Fig. 44. Paraiulus venustus. Ventral aspect of segments 1-3. 54 = stemite of 



fourth segment. 

 Fig. 45. Paraiulus venustus. Cephalic aspect of ventral region of second seg- 

 ment (A) and of fourth (B). 54 = stemite of fourth segment. 

 Fig. 46. Paraiulus venustus. Synoperculum and dwarfed legs of second pair, 



cephalic aspect. = oviduct. 

 Fig. 47. Paraiulus venustus. Both vulva?, caudal aspect. a; = hardened area in the 



membrane of the vestibulum. 



Plate XXIV. 



Fig. 48. Paraiulus venustus. Mound of the right vulva, outer profile. 



Fig. 49. Paraiulus veyiustus. Mound of the right vulva, anterior truncation 



(cephalic aspect). 

 Fig. 50. Paraiulus venustus. Base of legs of second pair of larva with immature 



vulvae, caudal aspect. 

 Fig. 51. Paraiulus ellipticus. Synoperculum and right mound (Af), oblique 



caudal aspect. The left mound has been removed to show the plow- 

 share-like process of the synoperculum, x. 

 Fig. 52. Paraiulus ellipticus. The left mound, outer profile. 

 Fig. 53. Paeromopus Chamberlini. Cardo and stipe of male left mandibula, 



ventral aspect. 

 Fig. 54. Paeromoptis Chamberlini. Ventral aspect of segments 1-3 (under 



contraction). 

 Fig. 55. Paeromopus Chamberlini. Left leg of first pair of male. .(4=cepTialic 



aspect; 5 = caudal aspect. 

 Fig. 56. Paeromopus Chamberlini. Right half of peltogonopods, cephalic aspect. 

 Fig. 57. Paeromoptis Chamberlini. Left half of gonopods, cephalic aspect. 



