MISCELLANEOUS NOTES. 1351 



P, 8. — The Nautilus and Ammonite specimens have been, as far as 

 possible, identified by reference to Dr. Waagen's work on the Jurassic 

 Cephalopoda of Cutch. (Pal. Indica Ser, IX. 4. vol. I. Pts. 1-4.). Several 

 specimens discovered do not seem to tally with any given in Dr. Waagen's 

 work : these are now awaiting identification. 



Among the specimens from Samatra, as yet identified by Mr. F. H. Stone, 

 are the following : — 



Belemnites grantianus^. 

 „ gerardi. 



katrolensis^. 



sauvanausus. 



Amaltheus schaumbiirgi. 

 Harpoceras dynastes. 



„ lairense. 



Peltoceras athleta. 

 bidens. 



Stephanoceras tumidum^. 

 „ polyphemus. 



Perisphinctes hians*. 



rehmanni. 



curvicosta. 



sparsiplicatus' 



angygaster. 



dhosaensis. 



omphalodes. 

 Also a Pleuromya. 



Notes:— (1) Belemnites grantianus is mentioned in R. D. Oldham's Manual 



of the Geology of India, page 224, also in a footnote on same 



page as having been overlooked by Dr. Waagen in Jurrassic 



Cutch Pal., Indica Series IX. 



(2) Bel. katrolensis being found in these beds shows that this species 



had its origin earlier than was known to former surveys. 



(3) Steph. tumidum found in upper Athleta or Dhosavolite (the dividing 



line is not clear to me) shows a later extension in time than 

 was formerly believed. Dr. Waagen allocated it to Macroce;phalus 

 beds only. 



(4) Per- Mans also seems to continue much later than was supposed. 



It was formerly assigned to Putchum beds (Bathonia). Here 

 it is found in Callorian. 



(5) Per. sparsiplicatus was only knovvn in Katrol beds. There is no 



sign of Katrol beds here. 



* * 

 * 



Mr. R. C. Burton, of the Geological Survey, Calcutta, has kindly 

 examined the large number of small Ammonites referred to in the above 

 article. He, however, reports that the specimens are too badly preserved 

 for safe identification. They are limonite casts. However, he is inclined 

 to believe that several which I had marked " Oppelia ?" are real Oppelia^ 

 a point which is interesting, as Oppelice are so very rare (or absent) in the 

 Samatra beds ; and these small specimens found in the upper strata may 

 have been the praecursors of a revival of the family. Large swarms existed 

 in the Katrol seas. 



