WITH DESCRIPTIONS OF NEW SPECIES. 383 
BiMiCHAELiA CRASSiPALPis, sp. nov. (PL 21. figS. 22 a, h.) 
Allied to B. setigera, Berlese (4, p. 13), but larger, the palps are stouter, 
the shoulders less prominent, and the structure of the skin, which is 
elaborately sculptured, is different. 
Colour white. Form sub-pentagonal (PI. 21. fig. 22 a) , shoulders prominent 
but less so than in B. aetigera. Epidermis striated and marked with a distinct 
hexagonal pattern, the hexagons forming rosette groups round the body hairs, 
the latter are sparse and are branched at the base (fig. 22 b). Cephalothorax 
not well marked off from the abdomen ; a narrow area enclosed by chitinous 
rods lies in the middle line, and two long sensory hairs are placed at its 
proximal extremity; behind these hairs are two semicircular stigmata. I can 
find no trace, however, of the small, clubbed, sensory organs which arise from 
these in other species of the genus (in a second specimen from another 
locality they are also absent) ; it is likely, however, that such organs may be 
sometimes present in the species. Abdomen thrown into folds and constricted 
at the middle, apex somewhat truncate. Palps stout. Legs short and very 
robust, distinctly areolated, hairs similar to those of the body. Length 320 ^a, 
breadth 240 /i. 
Localities. Found in sphagnum moss collecteil by Mr. A. W. Stelfox on the 
Garron Plateau, (Jo. Antrim, in July. It has also occurred in damp moss 
from Glencullen, Co. Dublin, in April of the present year. 
Alicus kosteatus, Trdg. 
An Alicus found in two highland localities in Ireland agrees excellently 
with the present species, which is recorded from the Sarekgebirge (Svvedish 
Lappland), except that the rostrum seems shorter than is described and 
figured (46). Drawings were sent to Dr. Tragardh, and he believes there is 
a difference in this respect. However, they agree in so many characters that 
it does not seem desirable to describe the Irish specimens under a new name. 
The colour during life is a reddish purple. Length 460 /*, breadth 270 /i. 
Cephalothorax with a distinct rostrum^ and well marked off from the abdo- 
men, central area defined by two subcutaneous chitinous ridges, the hinder 
part of which is areolated at the middle, and encloses the usual two pairs of 
long sensory hairs. Eyes small but distinct, placed on the front of lateral 
swellings. Abdomen with moderately marked shoulders and a sparse 
covering of short, spiculate hairs ; during life the dorsum lies in distinct 
folds. Legs longer and more slender than is usual in this genus. 
Localities. Found in moss collected on the Cumeragh Mountains, Co. 
Waterford, in July ; and in sphagnum from Glendhu, Co. Dublin, in 
October. 
SciEUS iNERMis, Trdg. (PI. 21. figs. 23 a, b.) 
Tliis species was described from specimens found on the surface of a small 
reservoir (Wassersammlung) at Gizeh, Cairo, in December 1900 (45). 
There can scarcely be any doubt that the specimens here recorded are the 
