260 F. R. a Heed— Fossils from Nepal, 



Purallelodon vgertonianus (Stoliczka). 



The internal cast of a largo lamellibrancli possesses the shape and 

 characters of hinge and teeth of the well-known P. efiertonianus of 

 the Spiti Shales.^ This species has also been found in Somaliland.- 



Nucula sp. 



One imperfect internal cast of a species of Nucula occurs in the 

 collection adhering to the outside of a nodule containing an example of 

 Peri. hij)lex. The hinge-line with its minute transverse teeth is visible, 

 but the specimen is too imperfect for further description. 



Rhynchonella cf. variabilis, Schlotheim. 



Only the pedicle valve of one example of a Rhynchonella is present, 

 and it is likewise attached to the exterior of a geode. The form 

 from JSTiti referred by Blanford ^ to Rhynch. variabilis, Schlotheim, is 

 apparently identical. 



Fossils from IS'epal are so rare and difficult to obtain that the above 

 mentioned are of special interest, and stratigraphically till up a gap in 

 our knowledge as to the eastward extension of the Spiti Shale fauna. 



The extension of the Spiti Shales eastwards from j!^epal has been 

 proved by their discovery * in Central Tibet, near the Kongra La 

 and Kampa dzong, in about 28° JS". lat. and 88° E. long., during the 

 last expedition into Tibet. But Boehm's ^ researches in the Sulu 

 Islands have carried the distribution of the distinctive fauna of these 

 beds still further to the east, for on the south coast of the islands of 

 Taliabu and Mangoli, between 1° and 2° S. lat. and 124° and 126° 

 E. long., some of the typical species {Hoplites Wallichi, Gray, and 

 PJiijlloceras strigile, Blanf.), with others closely allied to Himalayan 

 forms (e.g. Belemnites alfiiricus, Boehm, aff. B. Gerardi, Oppel), have 

 been found ; and even in Dutch New Guinea, at 2° 22' S. lat. and 

 139° 50' E. long., Boehm (op. cit., 1907, footnote on p. 118) states 

 that representative ammonites of the same fauna occur, and probably 

 also on the Strickland River in 142° E. long., in British territory.^ 

 Rothpletz ' had previously described and figured Belemnites Gerardi 

 from the island of Botti in about 11° S. lat. and 123° E. long. 

 Several stratigraphical subdivisions of the Spiti Shales were recognised 

 by Diener ^ in the Himalayas, and Boehm likewise maintains that in 

 the Moluccas also they include horizons from the Oxford Clay upwards 

 to the passage beds between the Jurassic and the Cretaceous. 



1 Stoliczka: Mem. Geol. Surv. India, vol. v (1866), pt. 1, p. 89, pi. viii, fig. 7. 

 - K. B. Newton: Geol. Mag., Dec. IV, Vol. Ill (1896), p. 294. 

 3 Blanford & Salter: Palajont. Niti, p. 101, pi. xxi", figs. la-c. 

 * Hayden : Geol. of Provinces of Tsang and U in Central Tibet, pp. 3 1-34 (Mem. 

 Geol. Surv. India, vol. xxxvi, pt. 2, 1907). 



5 Boelim : Beitr. z. Geol. Xiederland, Indieu, i, pp. 1-46, pis. i-vii (Palaeonto- 

 graphica, Suppl. iv, Lief. 1, 1904) ; pp. 59-120, pis. ix-xxxi (Palaeontographica, 

 Suppl. IV, Lief. 2, 1907). 



6 Boehm : Nenes Jahrb.f. Miner., Beil. Bd. xxii (1906), pp. 393-396, and references. 

 ' Rothpletz : Die Perm-, Trias-, und Jura- Formation auf Timor uud Rotti, p. 104, 



t. xiii, figs. 6-8, 10, 12 (Palaeontographica, Bd. xxxix, Lief. 2, 1892). 



8 Diener: Deukschr. Kais. Akad. Wiss. Wien, Math. Natur. Kl., Bd. lxii(1895),. 

 pp. 582-588. 



