WITH DESCRIPTIONS OF NEW SPECIES. 365 
front margin flattened, end bluntly pointed and reaching margin of body. 
All of these ventral plates are minutely punctured. Peritreme strongly 
sinuate^ lying close to the legs on the inner margin of a large plate which 
projects in a broad tongue-shaped process beyond, but does not enclose, the 
last pair of legs. Rod-like endopodiiil plates lie between the third and 
fourth coxge. 
Epistome with a long central spine fringed with minute hairs. Maxillary 
plate quadrate ; the small curved lobes are placed on a raised central part 
which projects beyond the front margin of the plate. Ohelicerse very minute. 
Palps normal. Legs robust, of moderate length, clothed with short hairs ; 
ambulacra on all pairs. Length 363 im, breadth 275 /a. 
Locality. Apparently a rare species ; found on two occasions, in January 
and November, under stones in the Tolka Valley, near Dublin. 
Gamasellus (Protol^laps) mucronatus {G. fit R. Can.). 
1881. Gamasus mucronatus, G. et R. Caiiestrini, 19, p. 1081. — 1882. G. et K. Can., 20, 
p. .52. — 1885. G. Can., 18, p. 78. — 1887. Cyrtolalaps mucronatus, Beiiese, 1, Fasc. xliv. 
n. 5.— 1921. Berlese, 15, p. 81. 
This species may be recognized by its large size, measuring 1200 ya in 
length, and the large strongiy-chitinized dorsal plates. In addition to a 
number of minute hairs, both plates carry two pairs of strong spines feathered 
at their extremities ; one pair at the end of the second plate project well 
beyond the posterior margin of the body. The peritreme lies close to the 
coxae on the inner margin of a large peritrematic plate. The ventro-anal 
plate is large, V-shaped, emarginate in front, its extremities lying close to 
the genital plate and the posterior margin of the body. 
Locality. Females found in rotting potatoes at Dramcondra, near Dublin, 
in April. The identification has been verified by Dr. Berlese, who refers 
(in lit.) the species to his subgenus Protohelaps. The male has not been 
described. 
Gamasellus (Peotol^laps) subnubus ?, Berl. (PL 20. fig. 3.) 
1918. Berlese, 13, p. 138. 
The following is a brief description of a Gamasellus, as well as of its 
larva and nymph, which probably belongs to the present species, although 
the identification is given with some reserve. 
Adult female pear-shaped. Epistome with a long sinuate spine, minutely 
spiculate at the base. Dorsal shields of moderate size and uniform breadth, 
distinctly punctate, the punctures lying in transverse rows ; margin of 
second shield broken up into small folds, and there is a wedge-shaped fissure 
in the middle of the front margin ; hairs sparse and weak. Epidermis 
strongly granulate. Sternum of moderate size (length 132 fi), hinder 
corners slightly rounded. Endopodial plates very strongly developed and 
