Oil Ostracocla, etc., from tlie Devonian of Germany. 335 



PolymorpTiina seminis sp. n. (PL VIII, fig. 9.) 



Description. — Test ovate, apiculate at the aboral end ; oral 

 aperture prolonged, tubular. Surface rough or acerate, with 

 short blunt prickles. Sutures few, test not compressed. 



Dimensions. — Length, 0*74 mm.; breadth, 0"48 mm. 



Observations. — This species shows some resemblance to P. sororia 

 Eeuss,* but is rather shorter than typical specimens of that form ; 

 moreover it is distinguished by the prickly or acerate surface and 

 tubular orifice. 



Occurrence. — Middle Devonian (String ocephalus Limestone) ; 

 Paffrath, the Eifel. 



Family Rotaliid^. 



Genus Truncatulina d'Orbigny. 



Truncatulina lohatula Walker and Jacob sp. (PI. VIII, figs. 10a, h.) 



Nautilus lohatulus Walker and Jacob, 1798, Adams' Essays, p. 642, pi. xiv, 



fig. 36. 

 Truncatulina lohatula W. and J. sp., Brady, 1884, Rep. Chall., vol. ix. p. 



660, pi. xcii, fig. 10 ; pi. xciii. figs. 1, 4, 5 ; pi. cxv, figs. 4, 5. 



Observations. — -The specimen figured here is a typically shaped, 

 though somewhat starved example. It has a comparatively high 

 test, fairly numerous chambers, and the re-entrant oral region is 

 conspicuous. 



Dimensions. — This Devonian specimen measures 0*52 mm. in 

 width, whereas living examples can be found with a width of more 

 than 2 mm. 



Range. — This appears to be the oldest recorded occurrence of 

 Truncatulina lobatula. Other palaeozoic representatives of the 

 genus are to be found in the Carboniferous of Belgium,! the Carbo- 

 permian of Pokolbin, New South Wales,| and the Carbopermian 

 of Collie, W. Australia.§ 



Occurrence. — Middle Devonian {String ocephalus Limestone) ; 

 Paffrath, the Eifel. 



The CALCISPHyERiE AND OTHER RELATED ORGANISMS. 



Whilst searching over thin sections of Devonian Limestone for 

 any evidence of Foraminifera or Ostracoda, I came across numerous 



* Polymorphina (Guttulina) sororia Reuss, 1862, Bull. Acad. Roy. Belg., ser. 2, 

 voL XV. p. 121, pi. ii, figs. 25-9. 



t Truncatulina carbonifera Brady, Mon. Carbonif. and Perm. Foram. Pal. Soc. 

 Mon., vol. XXX. 1876, p. 138, pi. vi, fig. 10. T. boueana d'Orb. sp., Idem, ibid., 

 p. 139, pi. vi, fig. 11. 



X Truncatulina haidingeri d'Orb. sp., Cbapman and Howchin, Mem. Geol. 

 Surv. N. S. Wales, PaL No. 14, 1905, p. 18, pL in, figs. Ba-c. 



§ Truncatulina haidingeri d'Orb. sp., Chapman, Bull. 27, Geol. Surv. W. 

 Australia, 1907, p. 17, pi. ii, figs, la, b. 



