Fauna of the Lower Devonian Beds of Torquay. 348 



of the pleura straight or slightly concave, and the " pleural " 

 furrow, which is nearer to it than to the posterior edge, is subparallel 

 and dies out some distance before reaching the subtruncate rounded 

 tij). The posterior edge of the pleura is strongly arched backwards, 

 making a convex curve, and at the posterior outer angle of the 

 tip bears a small but distinct marginal tubercle, which seems to be 

 unique. 



The relations of H. Champernoivnei to H. annatus Burm. were 

 briefly discussed by Woodward in 1881. We may here especially 

 draw attention to the close resemblance of the pygidium in the 

 Torquay Museum to one of those figured by Koch,^ under the name 

 annatus, but the number and position of the spines on the axis of 

 H. Ckamjyernownei are distinctive features. Woodward also com- 

 mented on its resemblance to H. elongatiis Salter, and this is specially 

 worthy of note, though only the pygidium of the latter is known 

 with certainty. But, as I have pointed out in my paper on the 

 classification of the genus, ^ we cannot strictly refer it to the same 

 group as H. Herscheli, though Woodward regarded the latter as 

 one of the two nearest allied species. 



Horizon. — " Red Homalonotus Beds " (" Lincombe andWarberry 

 Grits " = Staddon Grits). ^ 



Locality. — New Cut (= Lincombe Drive), Torquav. (S. 8, IIC?), 

 13(?), 4(?), 7(?); T. V-.) 



Homalonotus {Burmeisterella) elongatus, Salter. 



1865. Homalonotus (Burmeisteria) elongatus Salter, Mon. Brit. Trilob., ]). 122; 



pi. X, figs. 1, 2. 

 1918. Homalonotus {Biirm.eisterella) elongatus Reed, Geol. Mac, pp. 314, 325. 



The pygidium on which this species was founded was sufficiently 

 described by Salter (op. cit.). 



The species has been chosen by the present author as the type 

 of his new subgenus Burmeisterella (op. cit. supra), and its 

 affinities have been discussed. It is unfortunate that no further 

 examples of the species have been recognized, and that we are 

 ignorant of the thorax and head-shield, though apparently Salter 

 believed that the fragments figured by Phillips ** belonged to it. But 

 this conclusion seems to me to be extremely doubtful after a careful 

 examination of the actual specimens in the Jermvn Street Museum. 

 (^o^M.P.G.X^/M.P.G.) 



Locality. — Meadfoot, Torc[uay. 



Horizon. — Meadfoot Beds. 



1 Koch, op. cit., t. i, figs. 3, 3a. 



2 Reed, Geol. Mag., 1918, pp. 314, 324, 325. 



^ Ussher, Mem. Geol. Surv., Explan. Sheet 350, 1903, p. 35. 

 * Phillips, Palaeoz. Foss. Cornw. Devon, 1841, p. 130, pi. Ivii, figs. 253a-e 

 {H. Knighti {->.), figs. 253a-c ; H. Herscheli (?), fig. 253rf). 



