344 F. R. Cowper Reed — 



Homalonotus {Burmeisterella) armatus (Burineister) ? 



1843. Homalonotus armatus Burmeister, Organ. Trilob., p. 102, pi. iv, fig. 1. 

 1883. Homalonotus armatus Koch, Abh. Geo). Spec. Kart. Preuss., iv, 2, 



pp. 12-17,- 1. i, figs. 1-6. 

 1909. Homalonotus (Burmeisteria) armatus Giirich, Leitfossilien, Liof. ii, 



Devon, p. 156, t. xlviii, fig. 2. 



It is doubtful if this species really occurs in England, but the 

 material from Meadfoot is too poor to decide the question. 

 Fragmentary thoracic rings and portions of the pygidium from 

 the tough brownish sandstone of Meadfoot which are preserved 

 in the Sedgwick Museum (S. 5) appear to possess the characters 

 described and figured by Koch (op. cit.). They seem certainly 

 distinct from H. Champernownei of the red argillaceous beds of 

 the New Cut. 



Horizon. — Meadfoot Beds (sandstone). 



Locah'ty. — Meadfoot, Torquay (S. .5). 



Homalonotus [Burmeisterella) sp. 



There is in the Sedgwick Museum one left free cheek, somewhat 

 distorted, from the New Cut, Torquay, which has the peculiarity 

 of the border being raised and sharply bevelled so as to form an 

 angulated edge. In this respect it agrees with the cheek figured by 

 Drevermann^ as Homalonotus sp. from the Lower Coblenzian of 

 Oberstadtfeid, and in describing it this author remarks that the 

 possession of this border separates it from all other species of the 

 genus. In our specimen, which is complete except for the posterior 

 margin, the general surface of the cheek is swollen and elevated near 

 tlie eye but sinks down into a broad concentric submarginal concavity 

 which rises to the sharply angular inner edge of the border ; the 

 latter increases in width to the genal angle, and has a bevelled outer 

 face. There is the base of a large, stout, rounded spine or tubercle 

 near the inner edge of the swollen portion of the cheek, as in 

 Drevermann's figure. A more quadrate, less perfect free cheek from 

 the same locality at Torquay is also preserved in the Sedgwick 

 Museum, and resembles the other figure (fig. 1) given by'Drevermann 

 of this undetermined species. The presence of the spine-base on 

 the cheek suggests that it belongs to the subgenus Burmeisterella, 

 and probably one of the species above described should receive it. 



Horizon. — Red Beds (Staddon Grits). 



Locality.— 'New Cut, Torquay (S. 9, 100). 



Homalonotus {Parahomalonotus) Whidbor7iei sp. nov. (PI. IV, Fig. 4.) 



Definition. — General shape elongated, flattened ; trilobation 

 nearly obsolete. Head-shield short, broadly subtriangular, truncated 

 in front in middle (with a small median epistomal point projecting 

 below ?). Epistomal sutures on upper surface of head-shield 



1 Drevermann, Palceontographica, xlix, 1902, p. 74, t. ix, figs. 1, 2, 3 (?). 



