On a new Species of Scolopendra. 423 
and the last-named extending all along the shores of the 
Mediterranean as far as Suez. Mimosella gracilis is only 
found on the shores of Devon and Cornwall. 
According to Mr Gosse (6), Anthea cereus is found at 
Madeira. 
I think the foregoing examples are sufficient to demonstrate 
clearly that seaweeds, and particularly those furnished with 
air-vessels, have played in the past, as they continue to do at 
present, a most important part in the dispersal of many of 
our littoral forms over the globe. 
References. 
(1) Wattace, Atrrep R.—The Geographical Distribution of Ani- 
mals. _ London, 1876, 
(2) Sotnas, W. J.—On the Origin of Freshwater Faunas: a Study in 
Hvolution. Sci. Trans. Royal Dublin Society, vol. iii. (ser. ii.) 
part 5. Nov. 1884. 
(5) Forsgs, E., and Hantey, 8.—A History of British Mollusea and 
their Shells. 
(4) Hincxs, 'THomas.—A History of British Hydroid Zoophytes. 
(5) Hincxs, Toomas.—A History of British Marine Polyzoa. 
(6) Gossr.—A History of British Sea-Anemones and Corals. 
LVI1.— Description of a new Species of Scolopendra from the Solomon 
Islands. By BR. I. Pocock. 
Scolopendra metuenda, sp. n. 
Colour. The terga a deep olive-chestnut, head nearly black ; 
antenne, legs, and sterna rather greener than the terga; at the 
posterior end of the body the chestnut colour predominates on the 
- somites. 
Head without sulci, finely punctured, a little wider than long. 
Antenne long and slender, composed of 19 or 20 long cylindrical 
segments, whereof the basal five are smooth, though punctured, and 
the rest pubescent. : 
Maxillipedes finely punctured, the precoxal plates very short, 
but wide, with convex distal edges, each furnished with upwards of 
a dozen or more small, in parts nearly obsolete, teeth, which present 
the appearance of having been worn away; the femoral process 
simple, small, and curved back against the appendage. 
Y'ergites. First without either longitudinal or transverse sulci ; on 
the rest the longitudinal sulci start upon the third and extend to 
the twentieth, but are everywhere faint (except upon the extreme 
anterior and posterior edges of the terga), and almost die out in the 
middle of the body; a faint shallow median longitudinal furrow 
upon the terga. The lateral margin from the third to the twenty- 
first elevated. 
Sternites smooth aud shining, weakly bisulcate. 
Anal somite small; tergite not mesially sulcate, its width equal to 
the length of its lateral margin, but a little less than its median 
