394 R. B. Newton — Fossils from Nubian Sandstone, Egypt. 



a similar ferruginous rock at about 120 metres above the Mle. Un- 

 fortunately this later material is in the Survey Museum at Cairo, and 

 not available at the present moment for comparison with the Aswan 

 specimen. 



Group ANNELIDA. 



Family SerpulidsB. 



Genus GA-LEOLARIA, Lamarck. 



Hist. Nat. Anim. sans Vertebres, 1818, vol. v, p. 371. 



Galeolaeia filifoemis, J. de C. Sowerby. (PL XX, Pig. 13.) 



Serpula Jilifm-mis, J. de C. Sowerby: Trans. Geol. Soc. London, 1836, ser. ii, 



vol. iv, pt. ii, p. 340, pi. xvi, fig. 2. 

 Galeolaria {Serpula) Jiliformis, Bronn: Handbuch Geschichte Natur., 1848, vol. i, 



p. 521. 

 Serpula JiUformis, Stoliczka: Pala3ontologia Indica, 1873, vol. iv, pt. iv, p. 63, 

 pi. xii, fig. 6; Kossmat, "Cretaceous Deposits of Pondicberri," Kecords 

 Geol. Surv. India, 1897, vol. xxx, pp. 96, 107, pi. x, fig. 7 (translated from 

 tbe German). 

 Serpiila {Galeolaria) jiliformis, E,. B. Newton : Ball & Beadnell's Eeport, " Babaria 

 Oasis," Survey Dept. Public "Works Ministry, Egypt, 1903, p. 55. 



Remarhs. — The original account states that this species consists of 

 " smooth, round tubes, slightly curved, and aggregated into elongated, 

 often branching masses. The tubes are rather thick, nearly equal 

 throughout their substance ". Although not so entirely fasciculate as 

 is usual with this species, the form from the Nubian Sandstone shares 

 most of the characters as indicated in the first description. It is found 

 adherent to the valves of the unioniform shells (especially to Unio 

 Jowilcolensis), the tubes curving and intertwining in various directions, 

 and sometimes lying side by side in parallel curvatures more or less 

 contiguous, vrhilst the posterior ends are occasionally acuminate. The 

 tubes are quite small, barely half a millimetre in diameter, and without 

 the aid of a lens present an almost filamentous appearance. Some 

 obscure indications of transverse striations appear to be perceptible, 

 but this is very uncertain, as the surface shows evidence of erosion, 

 making it difficult to say whether it was not originally polished and 

 smooth as in ordinary examples of this species. The more isolated of 

 the tubes are observed to run parallel with the sculpture lines of the 

 valve. The species was first described from the Blackdown Beds of 

 England, now regarded as of Albian age, the same massive fasciculate 

 type having in more modern years been recorded from the Upper 

 Cretaceous rocks of Africa and India, both Stoliczka and Kossmat 

 having recognized it in the Arialyur Group of Southern India 

 (= Senonian), whilst Messrs. Ball & Beadnell collected it in 

 a ferruginous, sandy looking, more or less calcareous rock of 

 Cenomanian age occurring in the Baharian region of the Libyan Desert 

 of Egypt, associated with other true marine fossils such as Exogyra 

 OUsiponensis, etc. Good examples of the species have been figured by 

 Pictet & Renevier ' from the Aptian deposits of Switzerland, so that 

 its geological range appears to extend almost throughout the 

 Cretaceous Series. It is also mentioned by Stoliczka as occurring in 



^ Descr. Foss. Terr. Aptien St. Croix — Materiaux Pal. Suisse, 1854, pt. i, 

 p. 17, pi. i, figs. 10-15. 



