134 ^^^^^^ Irish Naturalist. July, 
P. denticulatus, Koch. — New to Ireland. The lirst specimen was 
taken by Dr. Scharit at Lough Bray, Wicklow, m 191 2, and more recently 
I have received a specimen from Slane, in Meath, and one from Bene- 
venagh. in Derry, both taken by Mr. Foster. 
While examining the specimen from Slane I noticed what looked like 
a large eye on the right hand side of the head. Just in front of and below 
the base of the antenna there was a large black area, roughly triangular 
in shape. It bore an extremely striking resemblance to the ordinary 
millipede eye until viewed under a lens, when it was seen that this triangle 
was not made up of a number of separate ocelli closely arranged in rows, 
but was a continuous pigmented surface. 
On the left hand side there was no trace of a pigmented area. 
No species of Polydesmus has even rudimentary e^-es, and they are 
also wanting in the other genera belonging to the family Polydesmidae. 
I have had transverse sections made of the head of the specimen with 
the object of discovering whether any traces of eye -structure might be 
present beneath the surface. The animal had lain in alcohol for some 
time, and had become brittle so that the sections could not be cut as 
thin as was desirable. They show clearly, however, that the pigment 
is not confined to the surface only, but is present to a very considerable 
depth. No trace could be detected, however, of anything in the nature 
of separate ocelli, possibly because of the thickness of the sections. There 
was no trace of pigment on the left side. 
So far as I know this is the only case on record of a Polydesmus pos- 
sessing even a rudimentary eye. 
P. coriaceus, Porat. — This species has recently been recorded for the 
first time from Ireland by Dr. A. Randall Jackson, who received specimens 
taken by Mr. D, R. Pack-Beresford in Co. Carlow. 
I have recently received a specimen from Mr. R. Welch, who took 
it at Slane, in Meath. In the Museum I have also found an unnamed 
specimen taken by Dr. Scharff at Glandore, Cork, in 1898. 
Chordeumidae. 
Atractosoma polydesmoides. Leach. — Derry (Banagher, N.H.F. ; Dun- 
given, R.W\). Down (Corry's Glen, N.H.F. ). Monaghan (Lord Ross- 
more's demesne, N.H.F.). 
Craspedosoma Rawlinsii, Leach. — Armagh. Cork (Doneraile Cave, R. J. 
Usshcr). Derry (Banagher, N.H.F.). Dublin (Howth, N.E.S.). W-cklow. 
lULIDAE. 
Blaniulus venustus, Meinert. — Antrim (Randalstown, R.W.). Derry 
(Banagher, N.H.F.). 
B. fuscus, Am. Stein. — Antrim (Kinbane, R.W.). Donegal (Gweedore, 
R.W. ; Cratlagh, J.N.H.). Dublin (Tallaght, C.M.S.). Kerry (Glencar). 
Wicklow (Lough Bray, C.M.S.). 
B. guttulatus, Bosc— Cork (G.H.C.). Derry (Benevenagh, N.H.F.). 
DubUn (Blackrock, Shankill and Rathfarnham, G.H.C.). Mayo (G.H.C.). 
Sligo (Ballysodare). Wexford (Fethard, G.H.C.). 
