G. C. Crick — Stracheijs Cephalopoda from Himalaya. GS' 



Although two of the specimens [Nos. C. TSGia and 6] are labelled 

 "NitiPass" and tlie third [No. C. 7365] merely " Spiti Shales," 

 yet the matrix and mode of preservation of the specimens are 

 such as to lead one to believe that they all came from the same 

 locality. 



3. Ammonites Nepaulbnsis, J. E. Gray. 



{A. Nepaulensis [sic], J. E. Gray: Illustr. Indian ZooL, vol. i, 1830-1832, pi. c^ 

 figs. 1 and 2. A. Nepalensis [sic], H. F. Blanford, in J. "W. Salter & H. F. 

 Blanford : Pala^ont. Mti, 1865, pi. xiv, figs. 1«, b.) 



There are two examples of this species m the National collection 

 [Nos. C. 5052 and C. 7687]. 



One [No. C. 5052] is undoubtedly one of the specimens figured 

 by Gray (op. cit., pi. c, fig. 1).^ It is accompanied by a label 

 belonging to the Museum of Practical Geology bearing the 

 inscription " Oolitic ; Niti Pass. Ammonites Nepalensis. Coll. by 

 Col. Strachey." This is certainly an error ; it could not have 

 been collected by Colonel Strachey, because the specimen was 

 figured in 1830-32 by Gray, whereas Colonel Strachey's specimens 

 were not obtained until the years 1848 and 1849.^ 



The fossil is imbedded in a nodule, the greater part of one side 

 only of the specimen being exposed. Since Gray's figure was drawn 

 an attempt has been made to develop the fossil. A little more of 

 the anterior part of the outer whorl has been uncovered, and some 

 matrix has been removed in front of the aperture so as to display 

 the commencement of the outer whorl, but only a little piece of this 

 — a length of 12 or 13 mm. — has been successfully exposed close to 

 the aperture. The surface of the rest of the first third of the outer 

 whorl that was covered by matrix when Gray's figure was drawn 

 has been injured during development. A small piece of the pen- 

 ultimate whorl bearing five principal ribs has been uncovered 

 immediately beneath the aperture. The ribbing is well preserved 

 over a little more than half of the outer whorl ; it is very regular^ 

 and there are eighteen principal ribs in the last half-whorl. Not- 

 withstanding the attempt at development tliere is no difficulty 

 whatever in recognizing the fossil as the original of Gray's fig. 1. 

 A specimen in the Museum of the Geological Society of London 

 (B. 10,116) is thought possibly to be Gray's type (fig. 1), but an 

 examination of the fossil clearly shows that such is not the case.* 

 The dimensions of the exserted portion of the fossil, as nearly as can 

 be measured, are : — diameter of shell, 101 mm. ; height of outei" 

 whorl, ^Q-B mm. ; thickness of outer whorl, estimated at about 

 37 mm. ; width of umbilicus, 23 mm. 



The other specimen in the Museum collection [No. C. 7687] 

 bears a label on which is written in pencil simply the name 

 " il. nepalensis"; there is no other information with the specimen, 



1 G. C. Crick : Proc. Malac. Soc, vol. v, pt. 4 (April, 1903), p. 285. 



2 Quart. Joui-n. Geol. Soc, vol. vii (1851), p. 294. 



^ See Professor J. F. Blake's "List of the Types and Figured Specimens in the 

 Collection of the Geological Society of London," 1902, p. 34. 



DECADE v. — A'OL. I. — XO. II. 



