39 136 Proceedings of the Royal Irish Academy. 



Plate VII. 



Fig. 



26 Thinozercon Michaeli sp. nov. a. Ventral view of male, b, Male genital 



foramen, c, Epistome. d, Male chelicerae. e-h, Leg spines, i, Ambu- 

 lacrum, j, Dorsal view of female, k, Sternal area of female. I, Side 

 view of peritreme. m, Dorsal view of nymph. 



27 Phaidocylliba Berlesii sp. nov. Male, a, Under side, b, Part of body 



margin, c, Genital foramen, d, Armature of first palp segment. 



28 Haluropoda interrupta sp. nov. a, Dorsal view, b, Under side of male. 



c, Ambulacrum. 



29 Haluropoda minor sp. nov. a, Dorsal view, b, Male genital foramen. 



c, Third segment of male palp, d, Ventral view of female. 



30 Urodinychus punctalissimus sp. nov. Female, a, Under side, b, area 



genitalis. 



Plate VIII. 



31 Seiulus m/i/mtus sp. nov. Dorsal view of body. 



32 Oribata alpina sp. nov. a, Dorsal view, b, Pseudostigmatic organ. 



33 JSfotaspis venustus Berl. a, Cephalothorax. b, Pseudostigmatic organ. 



34 Bhyncholophns tardus sp. nov. a, Dorsal view, b, Body hair, c, Crista. 



d, Eostrum and palps. 



35 Rhyncholophus sabulosus sp. nov. a, Dorsal view, b, Tarsus of first leg. 



36 Jlirombidium valgum, George. Crista and eyes. 



37 Thrombidiiim ramosum George, var. similis nov. a, Body hair, b, Body 



hair of typical form. 



38 Halacarus Southerni sp. nov. a, Dorsal view of body, b, First leg. 



39 H. areolatus sp. nov. a, Side margin of area genitalis, b, End segments of 



first leg. 



40 H. lamellosus Lohmann var. septentrionalis nov. a, Dorsal view. 



b, Ventral view of first leg. 



41 Scaptognathus Trouessarti sp. nov. a, Dorsal view, b, Extremity of palp. 



