14 The Irish Naturalist, [ Jan 



It is therefore advisable to piiblisli a new description, which 

 will read as follows : — 



Genus, LITHOBIUS. 

 Subgenus, Oi,igobothrus. 

 LIthoblus varlcgatus, Leach, 1817, 

 Leach— The Zoological Miscellany, iii., London, xii., 1817, p. 40. 

 Do. — Edinburgh Encyclop:, vii., p. 409. 

 Gervais —Etudes p. servirk I'Hist. Nat. des Myriapodes— ^««. d. Sci. Nat. 



(2), viL, 1837, p. 49. 

 Lucas— Hist. Nat. des Animaux Articules, i., Paris, 1840, p. 543. 

 Walker— Notes on Myriapoda. — Nrjuman's Entomol., January, 1842, p. 



238. 

 Newport— A list of the species of Myriapoda, order Chilopoda, &c. 

 Ann. and Mag. Nat. Hist, (i), xiii., 1844, p. 98. 

 Do.— Monograph of the Class Myriapoda, Order Chilopoda, &c. Trans. 

 Linn. Soc, London, xix., 1845, p. 363. 

 Gervais — Hist. Nat. des Insectes Apteres, iv., Paris, 1847, P- 231- 

 Newport and Gray— Catalogue of the Myriapoda in the collection of 



the B. M., London, 1856, p. 15. 

 R. I. Pocock— Notes upon some Irish Myriapoda.— /m/5 Naturalist, 

 vol. ii, 1893, p. 310. 



I^ength and width nearly as in i^. forficatus. 



Robust, parallel-sided, flattened. 



Cephalic plate rounded anteriorly, posterior angles blunt, 

 surface not punctate, but bearing two distinct longitudinal 

 furrows near the posterior margin. Ocelli condensed, number- 

 ing 16 or 17, disposed i -f 4.5.4.3., the posterior ocellus very 

 large, eliptical in shape, the three first ocelli of the upper row 

 large, more or less rounded, the rows somewhat curved and 

 irregular. Antennae long, reaching the posterior border of 

 the fifth dorsal plate, pilose, 36-42 jointed, the last joint alone 

 as long as the two preceding joints, or even longer. Coxae 

 of maxillipedes with anterior margin wide, almost straight, 

 slightly notched in the middle, armed with 6 -f- 7 or 7 -h 7 

 black, small, blunt teeth ; surface of coxae punctate, the 

 punctures well marked and dense towards the anterior margin, 

 becoming scattered and gradually fading away posteriorly, 

 medial sulcus deep. 



Dorsal plates shiny, uneven in the sides ; plates no. 3, 5, 

 8, 10, and 12, marked laterally with a transverse impression, 

 almost equally distant from both angles, or nearer to the 

 posterior angle ; 14th dorsal plate with two rough impressions 



