760 ME. r. K. C. EEED ON THE LOWER PALEOZOIC [NoV. 1 899, 



embracing eyes, the tongue-like projection of the glabella, and the 

 linear ornamentation; but the pitted marginal furrow, raised border, 

 and the divergent anterior branches of the facial suture are not 

 found in any species of that genus. 



The course of the facial suture reminds one somewhat of that in 

 Proetus, which also has some species with enormously developed 

 eyes closely applied to the glabella. The pits in the marginal 

 furrow recall the Cambrian genus Euloma. 



It seems therefore necessary to institute a new generic as well as 

 specific name for this fossil, and it may be termed Tramoria punctata. 



Oethis AEGBisTTEA, Hisiugcr. 



The species of Orthis which occurs in great abundance in the 

 sandy shales of INewtown Head was named by the officers of the 

 Survey 0. elegantula. M'Coy ^ had previously assigned it to Pander's 

 species 0. parva, and Salter ^ called it 0. striatula, Conrad. David- 

 son^ considered Salter's specimens to belong to 0. testudinaria. Miss 

 Elles, who has kindly examined numerous specimens from this 

 locality, identifies it with Hisinger's * species 0. argentea, and thus 

 confirms the opinion which I hold. The species in Sweden is a 

 very variable one, but is characteristic there ^ of beds which are 

 equivalent to our Hartfell, being particularly abundant in the lower 

 part and marking a zone at the top of the Bicranograptus-shales, 

 In Wales ^ it has been recognized on a similar horizon, and here we 

 find it associated with some characteristic Llandeilo fossils. In 

 these specimens the lateral ribs do not curve up so much towards 

 the hinge-line, and in this respect resemble Lindstrom's figures of 

 the species, but difier from the Welsh form. 



Oethisina cf. SQTJAMATA, Pahlcn. 



A portion of a valve from Stage 2, Tramore Limestone Series^ 

 Newtown Cove, shows the peculiar ornamentation described and 

 figured by Pahlen ^ in 0. squamata of the Echinospheerite-lime- 

 stone.^ 



Oethis (Oethisina ?) ceispa, M'Coy. 



Common in Stage 2, Tramore Limestone Series. Some specimens 

 show internal characters resembling Orthisina^ and the ornamenta- 

 tion of the valves is closely similar to that of Orthisina squamata and 



1 M'Ooy, 'Brit. Pal. Foss.' 1855, p. 221. 



2 Salter, Mem. Geol. Surv. vol. iii, 2nd ed. (1881) p. 545 ; ' Oat. Cambr. Sil. 

 Foss. Woodw. Mus.' 1873, p. 38. 



3 Monogr. Palaeont. See. 'Brit. Silur. Bracb.'vol. iii, p. 226. 



^ Hisinger, ' Leth. Suec' 1837, p. 72 & pi. xx, fig. 15; Lindstrom, 'Fragm. 

 Silur.' p. 26 & p]. xiv, figs. 12-15. 



^ Tullberg, ' Skanes Graptoliter I,' Sver. Geol. Undersokn. Ser. C, No. 50 

 (1882) ; Linnarsson, ibid. No. 31 (1879) p. 20. 



6 Marr & Roberts, Quart. Journ. Geol. Soc. vol. xli (1885) p. 476. 



■^ ' Monogr. balt.-silur. Arten d. Brach.-Gattung Orthisina,' Mem. Acad. Imp, 

 Sci. St. Petersb. toI. xxiv (1877) No. 8, p. 20 & pi. ii, figs. 1-4. 



8 Schmidt, Quart. Journ. Geol. Soc. vol. xxxviii (1882) p. 520. 



